================================================================== BUG: KASAN: slab-out-of-bounds in __lock_acquire+0x2eff/0x3640 kernel/locking/lockdep.c:3224 at addr ffff8801c4ec2ff8 Read of size 8 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Not tainted 4.9.65-g8ae26d1 #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c9207810 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec2fe0 ffffed00389d85ff ffff8801c4ec2ff8 ffff8801c9207838 ffffffff8153a3fc ffffed00389d85ff ffff8801d77fe500 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:330 [inline] [] __asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:330 [] __lock_acquire+0x2eff/0x3640 kernel/locking/lockdep.c:3224 [] lock_acquire+0x12e/0x410 kernel/locking/lockdep.c:3756 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:186 [inline] [] _raw_write_lock_irqsave+0x4e/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Allocated: PID = 11793 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: PID = 17 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 __do_softirq+0x206/0x951 kernel/softirq.c:284 Memory state around the buggy address: ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== ================================================================== BUG: KASAN: slab-out-of-bounds in look_up_lock_class kernel/locking/lockdep.c:676 [inline] at addr ffff8801c4ec2ff8 BUG: KASAN: slab-out-of-bounds in register_lock_class+0x1318/0x1340 kernel/locking/lockdep.c:726 at addr ffff8801c4ec2ff8 Read of size 8 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c9207788 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec2fe0 ffffed00389d85ff ffff8801c4ec2ff8 ffff8801c92077b0 ffffffff8153a3fc ffffed00389d85ff ffff8801d77fe500 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:330 [inline] [] __asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:330 [] look_up_lock_class kernel/locking/lockdep.c:676 [inline] [] register_lock_class+0x1318/0x1340 kernel/locking/lockdep.c:726 [] __lock_acquire+0x16c/0x3640 kernel/locking/lockdep.c:3233 [] lock_acquire+0x12e/0x410 kernel/locking/lockdep.c:3756 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:186 [inline] [] _raw_write_lock_irqsave+0x4e/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Allocated: PID = 11793 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: PID = 17 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 __do_softirq+0x206/0x951 kernel/softirq.c:284 Memory state around the buggy address: ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== ================================================================== BUG: KASAN: slab-out-of-bounds in register_lock_class+0x11e9/0x1340 kernel/locking/lockdep.c:733 at addr ffff8801c4ec2ff8 Read of size 8 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c9207788 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec2fe0 ffffed00389d85ff ffff8801c4ec2ff8 ffff8801c92077b0 ffffffff8153a3fc ffffed00389d85ff ffff8801d77fe500 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:330 [inline] [] __asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:330 [] register_lock_class+0x11e9/0x1340 kernel/locking/lockdep.c:733 [] __lock_acquire+0x16c/0x3640 kernel/locking/lockdep.c:3233 [] lock_acquire+0x12e/0x410 kernel/locking/lockdep.c:3756 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:186 [inline] [] _raw_write_lock_irqsave+0x4e/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Allocated: PID = 11793 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: PID = 17 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 __do_softirq+0x206/0x951 kernel/softirq.c:284 Memory state around the buggy address: ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c9207848 ffffffff81d90469 0000000000000000 dffffc0000000000 ffff8801c4ec2ff8 ffff8801c4ec2ff8 0000000000000000 ffff8801c92078d0 ffffffff8123488c ffffffff8123c49f 0000000000000092 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] register_lock_class+0x12cc/0x1340 kernel/locking/lockdep.c:738 [] __lock_acquire+0x16c/0x3640 kernel/locking/lockdep.c:3233 [] lock_acquire+0x12e/0x410 kernel/locking/lockdep.c:3756 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:186 [inline] [] _raw_write_lock_irqsave+0x4e/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ================================================================== BUG: KASAN: slab-out-of-bounds in debug_write_lock_before kernel/locking/spinlock_debug.c:178 [inline] at addr ffff8801c4ec2fe8 BUG: KASAN: slab-out-of-bounds in do_raw_write_lock+0x1a3/0x1d0 kernel/locking/spinlock_debug.c:202 at addr ffff8801c4ec2fe8 Read of size 4 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c9207a28 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec2fe0 ffffed00389d85fd ffff8801c4ec2fe8 ffff8801c9207a50 ffffffff8153a3fc ffffed00389d85fd ffff8801d77fe500 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] debug_write_lock_before kernel/locking/spinlock_debug.c:178 [inline] [] do_raw_write_lock+0x1a3/0x1d0 kernel/locking/spinlock_debug.c:202 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Allocated: PID = 11793 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: PID = 17 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 __do_softirq+0x206/0x951 kernel/softirq.c:284 Memory state around the buggy address: ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== ================================================================== BUG: KASAN: slab-out-of-bounds in debug_write_lock_before kernel/locking/spinlock_debug.c:179 [inline] at addr ffff8801c4ec2ff0 BUG: KASAN: slab-out-of-bounds in do_raw_write_lock+0x1bd/0x1d0 kernel/locking/spinlock_debug.c:202 at addr ffff8801c4ec2ff0 Read of size 8 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c9207a28 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec2fe0 ffffed00389d85fe ffff8801c4ec2ff0 ffff8801c9207a50 ffffffff8153a3fc ffffed00389d85fe ffff8801d77fe500 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:330 [inline] [] __asan_report_load8_noabort+0x29/0x30 mm/kasan/report.c:330 [] debug_write_lock_before kernel/locking/spinlock_debug.c:179 [inline] [] do_raw_write_lock+0x1bd/0x1d0 kernel/locking/spinlock_debug.c:202 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Allocated: PID = 11793 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 entry_SYSCALL_64_fastpath+0x23/0xc6 Freed: PID = 17 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 __do_softirq+0x206/0x951 kernel/softirq.c:284 Memory state around the buggy address: ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ^ ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== ================================================================== BUG: KASAN: slab-out-of-bounds in debug_write_lock_before kernel/locking/spinlock_debug.c:180 [inline] at addr ffff8801c4ec2fec BUG: KASAN: slab-out-of-bounds in do_raw_write_lock+0x199/0x1d0 kernel/locking/spinlock_debug.c:202 at addr ffff8801c4ec2fec Read of size 4 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c9207a28 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec2fe0 ffffed00389d85fd ffff8801c4ec2fec ffff8801c9207a50 ffffffff8153a3fc ffffed00389d85fd ffff8801d77fe500 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] debug_write_lock_before kernel/locking/spinlock_debug.c:180 [inline] [] do_raw_write_lock+0x199/0x1d0 kernel/locking/spinlock_debug.c:202 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 Freed: >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 Memory state around the buggy address: [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 entry_SYSCALL_64_fastpath+0x23/0xc6 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 entry_SYSCALL_64_fastpath+0x23/0xc6 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 ================================================================== Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Freed: ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 Freed: ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 Read of size 4 by task syz-executor1/11793 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 __do_softirq+0x206/0x951 kernel/softirq.c:284 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 __do_softirq+0x206/0x951 kernel/softirq.c:284 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ^ kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] vfs_read+0x11e/0x380 fs/read_write.c:475 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 __do_softirq+0x206/0x951 kernel/softirq.c:284 Freed: __do_softirq+0x206/0x951 kernel/softirq.c:284 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] vfs_read+0x11e/0x380 fs/read_write.c:475 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] __vfs_read+0x103/0x670 fs/read_write.c:452 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 [] entry_SYSCALL_64_fastpath+0x23/0xc6 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __vfs_read+0x103/0x670 fs/read_write.c:452 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ^ [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 Read of size 4 by task syz-executor1/11793 ================================================================== slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Allocated: __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Freed: ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 ffff8801c4ec2fe0 ffffed00389d85fc ffff8801c4ec2fe4 ffff8801c92079d8 Read of size 4 by task syz-executor1/11793 ================================================================== >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 ================================================================== PID = 11793 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ^ [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __vfs_read+0x103/0x670 fs/read_write.c:452 __do_softirq+0x206/0x951 kernel/softirq.c:284 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 __do_softirq+0x206/0x951 kernel/softirq.c:284 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 PID = 11793 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 ffff8801c4ec2fe0 ffffed00389d85fc ffff8801c4ec2fe4 ffff8801c92079d8 Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 Freed: ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] vfs_read+0x11e/0x380 fs/read_write.c:475 Call Trace: [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 ================================================================== fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 PID = 11793 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 entry_SYSCALL_64_fastpath+0x23/0xc6 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 PID = 17 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 PID = 17 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== ================================================================== fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== Read of size 4 by task syz-executor1/11793 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== ================================================================== ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 Read of size 4 by task syz-executor1/11793 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 ================================================================== ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 __do_softirq+0x206/0x951 kernel/softirq.c:284 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Memory state around the buggy address: BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 [] vfs_read+0x11e/0x380 fs/read_write.c:475 ================================================================== sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 __do_softirq+0x206/0x951 kernel/softirq.c:284 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 ================================================================== fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 [] __vfs_read+0x103/0x670 fs/read_write.c:452 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ^ [] entry_SYSCALL_64_fastpath+0x23/0xc6 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 ^ ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 Memory state around the buggy address: ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 [] vfs_read+0x11e/0x380 fs/read_write.c:475 Memory state around the buggy address: BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Memory state around the buggy address: CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 __do_softirq+0x206/0x951 kernel/softirq.c:284 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 ================================================================== ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801c4ec2fe0 ffffed00389d85fc ffff8801c4ec2fe4 ffff8801c92079d8 Read of size 4 by task syz-executor1/11793 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 Read of size 4 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Read of size 4 by task syz-executor1/11793 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 Read of size 4 by task syz-executor1/11793 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Freed: slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 Call Trace: [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 ================================================================== BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ^ [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 __do_softirq+0x206/0x951 kernel/softirq.c:284 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 Allocated: [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ^ [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 Allocated: [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 Memory state around the buggy address: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== ^ save_stack+0x43/0xd0 mm/kasan/kasan.c:495 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ioctl_fioasync fs/ioctl.c:534 [inline] do_vfs_ioctl+0x2d8/0x1140 fs/ioctl.c:639 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Freed: Read of size 4 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ^ [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 ================================================================== [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Read of size 4 by task syz-executor1/11793 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 ^ ================================================================== [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 ffff8801c4ec2fe0 ffffed00389d85fc ffff8801c4ec2fe4 ffff8801c92079d8 CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 ^ set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 ================================================================== >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] sg_finish_rem_req+0x295/0x340 drivers/scsi/sg.c:1838 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== save_stack+0x43/0xd0 mm/kasan/kasan.c:495 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 PID = 17 [] queued_write_lock include/asm-generic/qrwlock.h:134 [inline] [] do_raw_write_lock+0xc7/0x1d0 kernel/locking/spinlock_debug.c:203 PID = 11793 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 set_track mm/kasan/kasan.c:507 [inline] kasan_slab_free+0x73/0xc0 mm/kasan/kasan.c:571 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __vfs_read+0x103/0x670 fs/read_write.c:452 Memory state around the buggy address: BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 Memory state around the buggy address: CPU: 1 PID: 11793 Comm: syz-executor1 Tainted: G B 4.9.65-g8ae26d1 #98 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 Memory state around the buggy address: Read of size 4 by task syz-executor1/11793 Read of size 4 by task syz-executor1/11793 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] __vfs_read+0x103/0x670 fs/read_write.c:452 __do_softirq+0x206/0x951 kernel/softirq.c:284 set_track mm/kasan/kasan.c:507 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 __do_softirq+0x206/0x951 kernel/softirq.c:284 [] entry_SYSCALL_64_fastpath+0x23/0xc6 ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 slab_post_alloc_hook mm/slab.h:417 [inline] slab_alloc_node mm/slub.c:2715 [inline] slab_alloc mm/slub.c:2723 [inline] kmem_cache_alloc+0xba/0x290 mm/slub.c:2728 Read of size 4 by task syz-executor1/11793 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ^ sg_fasync+0x86/0xb0 drivers/scsi/sg.c:1203 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 fasync_free_rcu+0x1d/0x20 fs/fcntl.c:563 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57 BUG: KASAN: slab-out-of-bounds in __read_once_size include/linux/compiler.h:243 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in atomic_read arch/x86/include/asm/atomic.h:26 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] at addr ffff8801c4ec2fe4 BUG: KASAN: slab-out-of-bounds in native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 at addr ffff8801c4ec2fe4 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] vfs_read+0x11e/0x380 fs/read_write.c:475 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 [] __read_once_size include/linux/compiler.h:243 [inline] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] [] virt_spin_lock arch/x86/include/asm/qspinlock.h:56 [inline] [] native_queued_spin_lock_slowpath+0x6a1/0x6c0 kernel/locking/qspinlock.c:421 __do_softirq+0x206/0x951 kernel/softirq.c:284 fasync_alloc fs/fcntl.c:604 [inline] fasync_add_entry fs/fcntl.c:662 [inline] fasync_helper+0x37/0xb0 fs/fcntl.c:691 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffffffff8153a3fc ffffed00389d85fc ffff8801d77fe500 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c92079b0 ffffffff81d90469 ffff8801d77fe500 ffff8801c4ec2f80 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] __vfs_read+0x103/0x670 fs/read_write.c:452 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] kasan_report mm/kasan/report.c:329 [inline] [] __asan_report_load4_noabort+0x29/0x30 mm/kasan/report.c:329 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 entry_SYSCALL_64_fastpath+0x23/0xc6 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 __do_softirq+0x206/0x951 kernel/softirq.c:284 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] __vfs_read+0x103/0x670 fs/read_write.c:452 ================================================================== >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] __vfs_read+0x103/0x670 fs/read_write.c:452 ffff8801c4ec2e80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 SYSC_ioctl fs/ioctl.c:694 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [] vfs_read+0x11e/0x380 fs/read_write.c:475 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 Freed: ================================================================== kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 Memory state around the buggy address: ^ Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 [] entry_SYSCALL_64_fastpath+0x23/0xc6 [] print_address_description mm/kasan/report.c:198 [inline] [] kasan_report_error mm/kasan/report.c:287 [inline] [] kasan_report.part.1+0x21c/0x500 mm/kasan/report.c:309 [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 save_stack+0x43/0xd0 mm/kasan/kasan.c:495 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 __rcu_reclaim kernel/rcu/rcu.h:118 [inline] rcu_do_batch kernel/rcu/tree.c:2789 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] rcu_process_callbacks+0x871/0x12c0 kernel/rcu/tree.c:3037 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] kasan_object_err+0x1c/0x70 mm/kasan/report.c:160 [] SYSC_read fs/read_write.c:591 [inline] [] SyS_read+0xd9/0x1b0 fs/read_write.c:584 [] __raw_write_lock_irqsave include/linux/rwlock_api_smp.h:187 [inline] [] _raw_write_lock_irqsave+0x56/0x62 kernel/locking/spinlock.c:303 slab_free_hook mm/slub.c:1355 [inline] slab_free_freelist_hook mm/slub.c:1377 [inline] slab_free mm/slub.c:2958 [inline] kmem_cache_free+0xb2/0x2e0 mm/slub.c:2980 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 ffff8801c4ec3080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Allocated: Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 Object at ffff8801c4ec2f80, in cache fasync_cache size: 96 PID = 11793 Memory state around the buggy address: ffff8801c4ec2f00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [] sg_remove_request+0x70/0x120 drivers/scsi/sg.c:2122 >ffff8801c4ec2f80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [] pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:663 [inline] [] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:28 [inline] [] queued_spin_lock include/asm-generic/qspinlock.h:103 [inline] [] queued_write_lock_slowpath+0x116/0x150 kernel/locking/qrwlock.c:115