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KASAN: use-after-free Read in usb_anchor_resume_wakeups

Status: auto-obsoleted due to no activity on 2023/09/08 22:47
Reported-by: syzbot+3a7c49677981eae35226@syzkaller.appspotmail.com
First crash: 775d, last: 775d
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in usb_anchor_resume_wakeups (3) usb 19 6 1149d 1369d 0/29 auto-obsoleted due to no activity on 2022/09/19 12:39
upstream KASAN: use-after-free Read in usb_anchor_resume_wakeups usb 19 41 1814d 2197d 0/29 auto-closed as invalid on 2020/11/24 04:41
linux-6.1 KASAN: use-after-free Read in usb_anchor_resume_wakeups 19 1 102d 102d 0/3 auto-obsoleted due to no activity on 2025/07/12 12:59
upstream KASAN: use-after-free Read in usb_anchor_resume_wakeups (4) usb 24 117 1d06h 1017d 0/29 upstream: reported on 2022/10/01 13:43
upstream KASAN: use-after-free Read in usb_anchor_resume_wakeups (2) usb 19 4 1543d 1645d 0/29 auto-closed as invalid on 2021/08/21 21:47
linux-5.15 KASAN: use-after-free Read in usb_anchor_resume_wakeups (2) 19 1 167d 167d 0/3 auto-obsoleted due to no activity on 2025/05/09 10:36

Sample crash report:
xpad 1-1:179.65: xpad_irq_in - usb_submit_urb failed with result -19
xpad 1-1:179.65: xpad_irq_out - usb_submit_urb failed with result -19
==================================================================
BUG: KASAN: use-after-free in register_lock_class+0x610/0x6a4 kernel/locking/lockdep.c:1294
Read of size 1 at addr ffff0000d4b0a091 by task syz-fuzzer/3997

CPU: 1 PID: 3997 Comm: syz-fuzzer Not tainted 5.15.114-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 __asan_report_load1_noabort+0x44/0x50 mm/kasan/report_generic.c:306
 register_lock_class+0x610/0x6a4 kernel/locking/lockdep.c:1294
 __lock_acquire+0x184/0x7620 kernel/locking/lockdep.c:4890
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5622
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xc4/0x14c kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0xe8/0x1a0 kernel/sched/wait.c:157
 usb_anchor_resume_wakeups+0xcc/0x12c drivers/usb/core/urb.c:958
 __usb_hcd_giveback_urb+0x314/0x518 drivers/usb/core/hcd.c:1673
 usb_hcd_giveback_urb+0x108/0x41c drivers/usb/core/hcd.c:1753
 dummy_timer+0x66c/0x26cc drivers/usb/gadget/udc/dummy_hcd.c:1987
 call_timer_fn+0x19c/0x8f0 kernel/time/timer.c:1421
 expire_timers kernel/time/timer.c:1466 [inline]
 __run_timers+0x554/0x718 kernel/time/timer.c:1737
 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:1750
 __do_softirq+0x344/0xe20 kernel/softirq.c:558
 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
 invoke_softirq kernel/softirq.c:439 [inline]
 __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636
 irq_exit+0x14/0x88 kernel/softirq.c:660
 handle_domain_irq+0xf4/0x178 kernel/irq/irqdesc.c:710
 gic_handle_irq+0x78/0x1c8 drivers/irqchip/irq-gic-v3.c:757
 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:899
 do_interrupt_handler+0x74/0x94 arch/arm64/kernel/entry-common.c:267
 el1_interrupt+0x30/0x58 arch/arm64/kernel/entry-common.c:442
 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:458
 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:580
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0xbc/0x158 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
 __wake_up_common_lock kernel/sched/wait.c:140 [inline]
 __wake_up_sync_key+0x124/0x1ac kernel/sched/wait.c:205
 pipe_write+0xde0/0x1a4c fs/pipe.c:593
 call_write_iter include/linux/fs.h:2103 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x87c/0xb3c fs/read_write.c:594
 ksys_write+0x15c/0x26c fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:656
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Allocated by task 4062:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513
 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 kmem_cache_alloc_trace+0x27c/0x47c mm/slub.c:3247
 kmalloc include/linux/slab.h:591 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 xpad_probe+0x350/0x165c drivers/input/joystick/xpad.c:1779
 usb_probe_interface+0x500/0x984 drivers/usb/core/driver.c:396
 really_probe+0x26c/0xaec drivers/base/dd.c:595
 __driver_probe_device+0x194/0x3b4 drivers/base/dd.c:755
 driver_probe_device+0x78/0x34c drivers/base/dd.c:785
 __device_attach_driver+0x28c/0x4d8 drivers/base/dd.c:907
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 __device_attach+0x2f0/0x480 drivers/base/dd.c:979
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1028
 bus_probe_device+0xbc/0x1c8 drivers/base/bus.c:487
 device_add+0xae0/0xef4 drivers/base/core.c:3394
 usb_set_configuration+0x15e0/0x1b60 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:238
 usb_probe_device+0x120/0x25c drivers/usb/core/driver.c:293
 really_probe+0x26c/0xaec drivers/base/dd.c:595
 __driver_probe_device+0x194/0x3b4 drivers/base/dd.c:755
 driver_probe_device+0x78/0x34c drivers/base/dd.c:785
 __device_attach_driver+0x28c/0x4d8 drivers/base/dd.c:907
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 __device_attach+0x2f0/0x480 drivers/base/dd.c:979
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1028
 bus_probe_device+0xbc/0x1c8 drivers/base/bus.c:487
 device_add+0xae0/0xef4 drivers/base/core.c:3394
 usb_new_device+0x8fc/0x1448 drivers/usb/core/hub.c:2568
 hub_port_connect drivers/usb/core/hub.c:5358 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
 port_event drivers/usb/core/hub.c:5648 [inline]
 hub_event+0x22e4/0x48c4 drivers/usb/core/hub.c:5730
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2307
 worker_thread+0x910/0x1034 kernel/workqueue.c:2454
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

Freed by task 13:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4c/0x84 mm/kasan/common.c:46
 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360
 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366
 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kfree+0x178/0x410 mm/slub.c:4559
 xpad_disconnect+0x2d4/0x3d8 drivers/input/joystick/xpad.c:1927
 usb_unbind_interface+0x1a4/0x758 drivers/usb/core/driver.c:458
 __device_release_driver drivers/base/dd.c:1229 [inline]
 device_release_driver_internal+0x464/0x6ac drivers/base/dd.c:1262
 device_release_driver+0x28/0x38 drivers/base/dd.c:1285
 bus_remove_device+0x298/0x38c drivers/base/bus.c:529
 device_del+0x57c/0x9b4 drivers/base/core.c:3582
 usb_disable_device+0x354/0x760 drivers/usb/core/message.c:1419
 usb_disconnect+0x290/0x7e8 drivers/usb/core/hub.c:2231
 hub_port_connect drivers/usb/core/hub.c:5202 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
 port_event drivers/usb/core/hub.c:5648 [inline]
 hub_event+0x167c/0x48c4 drivers/usb/core/hub.c:5730
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2307
 worker_thread+0x910/0x1034 kernel/workqueue.c:2454
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

The buggy address belongs to the object at ffff0000d4b0a000
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 145 bytes inside of
 1024-byte region [ffff0000d4b0a000, ffff0000d4b0a400)
The buggy address belongs to the page:
page:000000000c7d5b70 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114b08
head:000000000c7d5b70 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 0000000000000000 0000000f00000001 ffff0000c0002780
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d4b09f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d4b0a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff0000d4b0a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff0000d4b0a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000d4b0a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
TCP: request_sock_TCP: Possible SYN flooding on port 2. Sending cookies.  Check SNMP counters.
TCP: request_sock_TCP: Possible SYN flooding on port 2. Sending cookies.  Check SNMP counters.

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/05/31 22:46 linux-5.15.y 0ab06468cbd1 babc4389 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 KASAN: use-after-free Read in usb_anchor_resume_wakeups
* Struck through repros no longer work on HEAD.