==================================================================
BUG: KASAN: use-after-free in __list_del_entry_valid+0x2f/0x120 lib/list_debug.c:46
Read of size 8 at addr ffff888109634e08 by task kworker/1:0/20
CPU: 1 PID: 20 Comm: kworker/1:0 Tainted: G W 5.10.226-syzkaller-00326-gab7c0abef9cf #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 18972:
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 20:
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
release_probes kernel/tracepoint.c:164 [inline]
tracepoint_remove_func kernel/tracepoint.c:479 [inline]
tracepoint_probe_unregister+0x901/0x9e0 kernel/tracepoint.c:572
bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:2135
bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:2762
bpf_link_free kernel/bpf/syscall.c:2356 [inline]
bpf_link_put+0x1fd/0x280 kernel/bpf/syscall.c:2382
bpf_link_release+0x3b/0x40 kernel/bpf/syscall.c:2390
__fput+0x33d/0x7b0 fs/file_table.c:281
____fput+0x15/0x20 fs/file_table.c:314
task_work_run+0x129/0x190 kernel/task_work.c:189
tracehook_notify_resume include/linux/tracehook.h:188 [inline]
exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:172
exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274
do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
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
release_probes kernel/tracepoint.c:164 [inline]
tracepoint_remove_func kernel/tracepoint.c:479 [inline]
tracepoint_probe_unregister+0x901/0x9e0 kernel/tracepoint.c:572
bpf_probe_unregister+0x61/0x70 kernel/trace/bpf_trace.c:2135
bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:2762
bpf_link_free kernel/bpf/syscall.c:2356 [inline]
bpf_link_put+0x1fd/0x280 kernel/bpf/syscall.c:2382
bpf_link_release+0x3b/0x40 kernel/bpf/syscall.c:2390
__fput+0x33d/0x7b0 fs/file_table.c:281
____fput+0x15/0x20 fs/file_table.c:314
task_work_run+0x129/0x190 kernel/task_work.c:189
tracehook_notify_resume include/linux/tracehook.h:188 [inline]
exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:172
exit_to_user_mode_prepare kernel/entry/common.c:199 [inline]
syscall_exit_to_user_mode+0xa2/0x1a0 kernel/entry/common.c:274
do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56
entry_SYSCALL_64_after_hwframe+0x61/0xcb
The buggy address belongs to the object at ffff888109634e00
which belongs to the cache kmalloc-64 of size 64
The buggy address is located 8 bytes inside of
64-byte region [ffff888109634e00, ffff888109634e40)
The buggy address belongs to the page:
page:ffffea0004258d00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109634
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea0004596ac0 0000000d0000000d ffff888100043800
raw: 0000000000000000 0000000080200020 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 1, ts 2041271380, 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]
kmem_cache_alloc_trace+0x1bd/0x2e0 mm/slub.c:2972
kmalloc include/linux/slab.h:552 [inline]
kzalloc include/linux/slab.h:664 [inline]
percpu_ref_init+0xad/0x310 lib/percpu-refcount.c:75
hd_ref_init+0x27/0x40 block/partitions/core.c:318
__alloc_disk_node+0x243/0x570 block/genhd.c:1755
loop_add+0x32d/0x750 drivers/block/loop.c:2158
loop_init+0x225/0x263 drivers/block/loop.c:2403
do_one_initcall+0x189/0x620 init/main.c:1197
do_initcall_level+0x186/0x304 init/main.c:1270
do_initcalls+0x4e/0x8e init/main.c:1286
do_basic_setup+0x88/0x91 init/main.c:1306
page_owner free stack trace missing
Memory state around the buggy address:
ffff888109634d00: 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc fc
ffff888109634d80: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
>ffff888109634e00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff888109634e80: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
ffff888109634f00: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
==================================================================
general protection fault, probably for non-canonical address 0xfca7fc7060000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xe540038300000010-0xe540038300000017]
CPU: 1 PID: 20 Comm: kworker/1:0 Tainted: G B W 5.10.226-syzkaller-00326-gab7c0abef9cf #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 3c 93 51 ff 49 8b 17 4c 39 f2 75
RSP: 0018:ffffc90000157c20 EFLAGS: 00010a03
RAX: 1ca8007060000002 RBX: ffff88810acaa500 RCX: ffffffff8256c439
RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff888109634e00
RBP: ffffc90000157c40 R08: ffffffff813e2a3b R09: 0000000000000003
R10: fffffbfff0e11248 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888109634e00 R14: ffff888109634e00 R15: e540038300000014
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffe8 CR3: 000000000660f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000d01
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 6e9d6f55c80f1409 ]---
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 3c 93 51 ff 49 8b 17 4c 39 f2 75
RSP: 0018:ffffc90000157c20 EFLAGS: 00010a03
RAX: 1ca8007060000002 RBX: ffff88810acaa500 RCX: ffffffff8256c439
RDX: dead000000000122 RSI: 0000000000000286 RDI: ffff888109634e00
RBP: ffffc90000157c40 R08: ffffffff813e2a3b R09: 0000000000000003
R10: fffffbfff0e11248 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888109634e00 R14: ffff888109634e00 R15: e540038300000014
FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffe8 CR3: 000000000660f000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000d01
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 3c 93 51 ff call 0xff519374
38: 49 8b 17 mov (%r15),%rdx
3b: 4c 39 f2 cmp %r14,%rdx
3e: 75 .byte 0x75