==================================================================
BUG: KASAN: use-after-free in __list_del_entry_valid+0x2f/0x120 lib/list_debug.c:46
Read of size 8 at addr ffff88810d49cf08 by task kworker/0:59/862
CPU: 0 PID: 862 Comm: kworker/0:59 Not tainted 5.10.226-syzkaller-00184-g139a6bb26d9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events binder_deferred_func
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
print_address_description+0x81/0x3b0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:435 [inline]
kasan_report+0x179/0x1c0 mm/kasan/report.c:452
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309
__list_del_entry_valid+0x2f/0x120 lib/list_debug.c:46
__list_del_entry include/linux/list.h:132 [inline]
list_del_init include/linux/list.h:204 [inline]
binder_dequeue_work_head_ilocked drivers/android/binder.c:515 [inline]
binder_release_work+0xcd/0x680 drivers/android/binder.c:5126
binder_deferred_release drivers/android/binder.c:6278 [inline]
binder_deferred_func+0x1847/0x1bc0 drivers/android/binder.c:6313
process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
kthread+0x34b/0x3d0 kernel/kthread.c:313
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Allocated by task 7271:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:430 [inline]
____kasan_kmalloc+0xdb/0x110 mm/kasan/common.c:509
__kasan_kmalloc+0x9/0x10 mm/kasan/common.c:518
kasan_kmalloc include/linux/kasan.h:254 [inline]
kmem_cache_alloc_trace+0x18a/0x2e0 mm/slub.c:2974
kmalloc include/linux/slab.h:552 [inline]
kzalloc include/linux/slab.h:664 [inline]
binder_request_freeze_notification drivers/android/binder.c:3867 [inline]
binder_thread_write+0x9ce/0x6c70 drivers/android/binder.c:4495
binder_ioctl_write_read+0x216/0x6a80 drivers/android/binder.c:5411
binder_ioctl+0x314/0x1e00 drivers/android/binder.c:5727
vfs_ioctl fs/ioctl.c:48 [inline]
__do_sys_ioctl fs/ioctl.c:753 [inline]
__se_sys_ioctl+0x114/0x190 fs/ioctl.c:739
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
do_syscall_64+0x34/0x70
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Freed by task 862:
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:45
kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
____kasan_slab_free+0x121/0x160 mm/kasan/common.c:362
__kasan_slab_free+0x11/0x20 mm/kasan/common.c:370
kasan_slab_free include/linux/kasan.h:220 [inline]
slab_free_hook mm/slub.c:1595 [inline]
slab_free_freelist_hook+0xc0/0x190 mm/slub.c:1621
slab_free mm/slub.c:3203 [inline]
kfree+0xc3/0x270 mm/slub.c:4191
binder_free_ref+0x128/0x260 drivers/android/binder.c:1453
binder_deferred_release drivers/android/binder.c:6273 [inline]
binder_deferred_func+0x171c/0x1bc0 drivers/android/binder.c:6313
process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
kthread+0x34b/0x3d0 kernel/kthread.c:313
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd3/0x100 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
__call_rcu kernel/rcu/tree.c:2976 [inline]
call_rcu+0x135/0x11f0 kernel/rcu/tree.c:3050
__percpu_ref_switch_to_atomic lib/percpu-refcount.c:227 [inline]
__percpu_ref_switch_mode+0x342/0x620 lib/percpu-refcount.c:274
percpu_ref_kill_and_confirm+0xa3/0x220 lib/percpu-refcount.c:388
percpu_ref_kill include/linux/percpu-refcount.h:149 [inline]
delete_partition+0x1d1/0x240 block/partitions/core.c:356
blk_drop_partitions+0x113/0x1a0 block/partitions/core.c:647
bdev_disk_changed+0xe3/0x4f0 fs/block_dev.c:1410
__blkdev_get+0x5e0/0x12f0 fs/block_dev.c:1565
blkdev_get fs/block_dev.c:1653 [inline]
blkdev_get_by_dev+0x1b4/0x5c0 fs/block_dev.c:1734
blkdev_reread_part block/ioctl.c:114 [inline]
blkdev_common_ioctl+0x18c4/0x1eb0 block/ioctl.c:564
blkdev_ioctl+0x216/0x5f0 block/ioctl.c:633
block_ioctl+0xb1/0xf0 fs/block_dev.c:1888
vfs_ioctl fs/ioctl.c:48 [inline]
__do_sys_ioctl fs/ioctl.c:753 [inline]
__se_sys_ioctl+0x114/0x190 fs/ioctl.c:739
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
do_syscall_64+0x34/0x70
entry_SYSCALL_64_after_hwframe+0x61/0xcb
Second to last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:38
__kasan_record_aux_stack+0xd3/0x100 mm/kasan/generic.c:348
kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:358
__call_rcu kernel/rcu/tree.c:2976 [inline]
call_rcu+0x135/0x11f0 kernel/rcu/tree.c:3050
__percpu_ref_switch_to_atomic lib/percpu-refcount.c:227 [inline]
__percpu_ref_switch_mode+0x342/0x620 lib/percpu-refcount.c:274
percpu_ref_kill_and_confirm+0xa3/0x220 lib/percpu-refcount.c:388
percpu_ref_kill include/linux/percpu-refcount.h:149 [inline]
delete_partition+0x1d1/0x240 block/partitions/core.c:356
blk_drop_partitions+0x113/0x1a0 block/partitions/core.c:647
bdev_disk_changed+0xe3/0x4f0 fs/block_dev.c:1410
__blkdev_get+0x5e0/0x12f0 fs/block_dev.c:1565
blkdev_get fs/block_dev.c:1653 [inline]
blkdev_get_by_dev+0x1b4/0x5c0 fs/block_dev.c:1734
blkdev_reread_part block/ioctl.c:114 [inline]
blkdev_common_ioctl+0x18c4/0x1eb0 block/ioctl.c:564
blkdev_ioctl+0x216/0x5f0 block/ioctl.c:633
block_ioctl+0xb1/0xf0 fs/block_dev.c:1888
vfs_ioctl fs/ioctl.c:48 [inline]
__do_sys_ioctl fs/ioctl.c:753 [inline]
__se_sys_ioctl+0x114/0x190 fs/ioctl.c:739
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
do_syscall_64+0x34/0x70
entry_SYSCALL_64_after_hwframe+0x61/0xcb
The buggy address belongs to the object at ffff88810d49cf00
which belongs to the cache kmalloc-64 of size 64
The buggy address is located 8 bytes inside of
64-byte region [ffff88810d49cf00, ffff88810d49cf40)
The buggy address belongs to the page:
page:ffffea0004352700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10d49c
flags: 0x4000000000000200(slab)
raw: 4000000000000200 dead000000000100 dead000000000122 ffff888100043800
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 84, ts 3446843731, free_ts 0
set_page_owner include/linux/page_owner.h:35 [inline]
post_alloc_hook mm/page_alloc.c:2456 [inline]
prep_new_page+0x166/0x180 mm/page_alloc.c:2462
get_page_from_freelist+0x2d8c/0x2f30 mm/page_alloc.c:4254
__alloc_pages_nodemask+0x435/0xaf0 mm/page_alloc.c:5348
allocate_slab mm/slub.c:1808 [inline]
new_slab+0x80/0x400 mm/slub.c:1869
new_slab_objects mm/slub.c:2627 [inline]
___slab_alloc+0x302/0x4b0 mm/slub.c:2791
__slab_alloc+0x63/0xa0 mm/slub.c:2831
slab_alloc_node mm/slub.c:2913 [inline]
slab_alloc mm/slub.c:2955 [inline]
__kmalloc+0x204/0x330 mm/slub.c:4029
__kmalloc_node include/linux/slab.h:418 [inline]
kmalloc_node include/linux/slab.h:575 [inline]
kvmalloc_node+0x82/0x130 mm/util.c:612
kvmalloc include/linux/mm.h:822 [inline]
simple_xattr_alloc+0x43/0xa0 fs/xattr.c:917
shmem_initxattrs+0x8d/0x200 mm/shmem.c:3214
security_inode_init_security+0x252/0x390 security/security.c:1033
shmem_mknod+0xb8/0x1c0 mm/shmem.c:2902
shmem_create+0x2b/0x40 mm/shmem.c:2957
lookup_open fs/namei.c:3247 [inline]
open_last_lookups fs/namei.c:3317 [inline]
path_openat+0x1377/0x3000 fs/namei.c:3506
do_filp_open+0x21c/0x460 fs/namei.c:3536
do_sys_openat2+0x13f/0x710 fs/open.c:1217
page_owner free stack trace missing
Memory state around the buggy address:
ffff88810d49ce00: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
ffff88810d49ce80: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
>ffff88810d49cf00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff88810d49cf80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff88810d49d000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
general protection fault, probably for non-canonical address 0xf1f3fc5a4000006b: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x8fa002d200000358-0x8fa002d20000035f]
CPU: 0 PID: 862 Comm: kworker/0:59 Tainted: G B 5.10.226-syzkaller-00184-g139a6bb26d9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events binder_deferred_func
RIP: 0010:__list_del_entry_valid+0x75/0x120 lib/list_debug.c:59
Code: 1e 48 85 db 74 68 4d 85 ff 74 74 48 ba 00 01 00 00 00 00 ad de 48 39 d3 74 76 48 83 c2 22 49 39 d7 74 7e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 1c 97 51 ff 49 8b 17 4c 39 f2 75
RSP: 0018:ffffc900045dfc20 EFLAGS: 00010a03
RAX: 11f4005a4000006b RBX: ffff888101fe0300 RCX: ffffffff8256bf49
RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810d49cf00
RBP: ffffc900045dfc40 R08: ffffffff813e2a7b R09: 0000000000000003
R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88810d49cf00 R14: ffff88810d49cf00 R15: 8fa002d20000035e
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ac8c3 CR3: 000000000660f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__list_del_entry include/linux/list.h:132 [inline]
list_del_init include/linux/list.h:204 [inline]
binder_dequeue_work_head_ilocked drivers/android/binder.c:515 [inline]
binder_release_work+0xcd/0x680 drivers/android/binder.c:5126
binder_deferred_release drivers/android/binder.c:6278 [inline]
binder_deferred_func+0x1847/0x1bc0 drivers/android/binder.c:6313
process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301
worker_thread+0xaea/0x1510 kernel/workqueue.c:2447
kthread+0x34b/0x3d0 kernel/kthread.c:313
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Modules linked in:
---[ end trace 087e289900dd1493 ]---
RIP: 0010:__list_del_entry_valid+0x75/0x120 lib/list_debug.c:59
Code: 1e 48 85 db 74 68 4d 85 ff 74 74 48 ba 00 01 00 00 00 00 ad de 48 39 d3 74 76 48 83 c2 22 49 39 d7 74 7e 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 1c 97 51 ff 49 8b 17 4c 39 f2 75
RSP: 0018:ffffc900045dfc20 EFLAGS: 00010a03
RAX: 11f4005a4000006b RBX: ffff888101fe0300 RCX: ffffffff8256bf49
RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff88810d49cf00
RBP: ffffc900045dfc40 R08: ffffffff813e2a7b R09: 0000000000000003
R10: fffffbfff0e10e48 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88810d49cf00 R14: ffff88810d49cf00 R15: 8fa002d20000035e
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ac8c3 CR3: 000000000660f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 85 db test %rbx,%rbx
3: 74 68 je 0x6d
5: 4d 85 ff test %r15,%r15
8: 74 74 je 0x7e
a: 48 ba 00 01 00 00 00 movabs $0xdead000000000100,%rdx
11: 00 ad de
14: 48 39 d3 cmp %rdx,%rbx
17: 74 76 je 0x8f
19: 48 83 c2 22 add $0x22,%rdx
1d: 49 39 d7 cmp %rdx,%r15
20: 74 7e je 0xa0
22: 4c 89 f8 mov %r15,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 4c 89 ff mov %r15,%rdi
33: e8 1c 97 51 ff call 0xff519754
38: 49 8b 17 mov (%r15),%rdx
3b: 4c 39 f2 cmp %r14,%rdx
3e: 75 .byte 0x75