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KASAN: use-after-free Write in __run_timers

Status: upstream: reported C repro on 2024/12/01 07:19
Bug presence: origin:lts
[Documentation on labels]
Reported-by: syzbot+42f23b6967da57abbb39@syzkaller.appspotmail.com
First crash: 169d, last: 4d11h
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2024/12/01 lts (merge base) 0d968ced7330 C [report] KASAN: use-after-free Write in enqueue_timer
2024/12/01 upstream (ToT) bcc8eda6d349 C Didn't crash
▶ ▼ Similar bugs (8)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 KASAN: use-after-free Write in __run_timers (2) C 725 9h07m 83d 0/2 upstream: reported C repro on 2025/02/25 14:17
upstream KASAN: use-after-free Write in __run_timers 6144 2766d 2826d 3/28 fixed on 2017/11/11 01:37
android-54 KASAN: use-after-free Write in __run_timers syz 449 320d 1772d 0/2 auto-obsoleted due to no activity on 2024/09/11 00:16
upstream KASAN: invalid-access Write in __run_timers kernel 8 1550d 1556d 0/28 auto-closed as invalid on 2021/05/20 13:15
upstream KMSAN: uninit-value in __run_timers (3) reiserfs C error 4 622d 658d 0/28 auto-obsoleted due to no activity on 2024/01/10 00:11
upstream KASAN: slab-use-after-free Write in __run_timers net 1 79d 79d 0/28 closed as invalid on 2025/03/30 10:14
android-54 KASAN: slab-out-of-bounds Write in __run_timers 4 1421d 1611d 0/2 auto-closed as invalid on 2021/10/26 12:53
upstream BUG: unable to handle kernel NULL pointer dereference in __run_timers arm 1 355d 351d 0/28 auto-obsoleted due to no activity on 2024/08/27 10:03
▶ ▼ Last patch testing requests (9)
Created Duration User Patch Repo Result
2025/03/21 06:36 7m retest repro android14-6.1 report log
2025/03/21 06:36 7m retest repro android14-6.1 report log
2025/03/21 06:36 6m retest repro android14-6.1 report log
2025/03/21 06:36 10m retest repro android14-6.1 report log
2025/03/21 06:36 7m retest repro android14-6.1 report log
2025/03/06 06:41 11m retest repro android14-6.1 report log
2025/03/06 06:41 6m retest repro android14-6.1 report log
2025/03/06 06:41 6m retest repro android14-6.1 report log
2025/03/06 06:41 13m retest repro android14-6.1 report log
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2025/04/11 03:32 1h08m bisect fix android14-6.1 OK (0) job log log

Sample crash report:
==================================================================
BUG: KASAN: use-after-free in hlist_move_list include/linux/list.h:1014 [inline]
BUG: KASAN: use-after-free in collect_expired_timers kernel/time/timer.c:1576 [inline]
BUG: KASAN: use-after-free in __run_timers+0x34a/0xa10 kernel/time/timer.c:1812
Write of size 8 at addr ffff8881115e4a00 by task swapper/0/0

CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.129-syzkaller-00017-g642656a36791 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x158/0x4e0 mm/kasan/report.c:427
 kasan_report+0x13c/0x170 mm/kasan/report.c:531
 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report_generic.c:356
 hlist_move_list include/linux/list.h:1014 [inline]
 collect_expired_timers kernel/time/timer.c:1576 [inline]
 __run_timers+0x34a/0xa10 kernel/time/timer.c:1812
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:624
 __do_softirq kernel/softirq.c:662 [inline]
 invoke_softirq kernel/softirq.c:479 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:711
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:723
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:40 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:75 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:567 [inline]
RIP: 0010:acpi_idle_enter+0x416/0x760 drivers/acpi/processor_idle.c:704
Code: 89 de 48 83 e6 08 31 ff e8 87 35 53 fc 48 83 e3 08 0f 85 b1 00 00 00 0f 1f 44 00 00 e8 33 31 53 fc 0f 00 2d 7c 4f ce 00 fb f4 <fa> e9 e3 00 00 00 49 83 c7 04 4c 89 f8 48 c1 e8 03 42 0f b6 04 30
RSP: 0018:ffffffff87007bd0 EFLAGS: 000002d3
RAX: ffffffff8522091d RBX: 0000000000000000 RCX: ffffffff8701d580
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff87007c10 R08: ffffffff85220909 R09: fffffbfff0e03ab1
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff88810a21b004 R14: dffffc0000000000 R15: ffff888109878864
 cpuidle_enter_state+0x5eb/0x17f0 drivers/cpuidle/cpuidle.c:251
 cpuidle_enter+0x5f/0xa0 drivers/cpuidle/cpuidle.c:369
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x3d1/0x580 kernel/sched/idle.c:303
 cpu_startup_entry+0x44/0x60 kernel/sched/idle.c:401
 rest_init+0x10b/0x130 init/main.c:731
 arch_call_rest_init+0xe/0xe init/main.c:891
 start_kernel+0x46c/0x4d8 init/main.c:1138
 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:555
 x86_64_start_kernel+0x7c/0x81 arch/x86/kernel/head64.c:536
 secondary_startup_64_no_verify+0xce/0xdb
 </TASK>

Allocated by task 327:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_alloc_info+0x1f/0x30 mm/kasan/generic.c:505
 ____kasan_kmalloc mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x9c/0xb0 mm/kasan/common.c:388
 kasan_kmalloc include/linux/kasan.h:212 [inline]
 __do_kmalloc_node mm/slab_common.c:938 [inline]
 __kmalloc+0xb4/0x1e0 mm/slab_common.c:951
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 hci_alloc_dev_priv+0x27/0x1c00 net/bluetooth/hci_core.c:2435
 hci_alloc_dev include/net/bluetooth/hci_core.h:1484 [inline]
 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:636 [inline]
 hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:712 [inline]
 hci_uart_tty_ioctl+0x401/0xa70 drivers/bluetooth/hci_ldisc.c:765
 tty_ioctl+0x903/0xc50 drivers/tty/tty_io.c:2785
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Freed by task 332:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:516
 ____kasan_slab_free+0x131/0x180 mm/kasan/common.c:241
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249
 kasan_slab_free include/linux/kasan.h:178 [inline]
 slab_free_hook mm/slub.c:1745 [inline]
 slab_free_freelist_hook mm/slub.c:1771 [inline]
 slab_free mm/slub.c:3686 [inline]
 __kmem_cache_free+0x21d/0x410 mm/slub.c:3702
 kfree+0x7a/0xf0 mm/slab_common.c:990
 hci_release_dev+0x14d3/0x1640 net/bluetooth/hci_core.c:2763
 bt_host_release+0x83/0xa0 net/bluetooth/hci_sysfs.c:85
 device_release+0x95/0x1c0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:681 [inline]
 kobject_release lib/kobject.c:712 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x178/0x260 lib/kobject.c:729
 put_device+0x1f/0x30 drivers/base/core.c:3805
 hci_dev_put include/net/bluetooth/hci_core.h:1444 [inline]
 hci_dev_cmd+0x2be/0x9b0 net/bluetooth/hci_core.c:795
 hci_sock_ioctl+0x415/0x7f0 net/bluetooth/hci_sock.c:1096
 sock_do_ioctl+0x152/0x3b0 net/socket.c:1194
 sock_ioctl+0x455/0x740 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb4/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 insert_work+0x56/0x310 kernel/workqueue.c:1368
 __queue_work+0x9b6/0xd70 kernel/workqueue.c:1527
 queue_work_on+0x105/0x170 kernel/workqueue.c:1555
 queue_work include/linux/workqueue.h:510 [inline]
 hci_cmd_sync_run net/bluetooth/hci_sync.c:140 [inline]
 __hci_cmd_sync_sk+0xc2a/0xf70 net/bluetooth/hci_sync.c:162
 __hci_cmd_sync_status_sk net/bluetooth/hci_sync.c:253 [inline]
 __hci_cmd_sync_status net/bluetooth/hci_sync.c:277 [inline]
 hci_cmd_sync_status+0x52/0x130 net/bluetooth/hci_sync.c:288
 hci_dev_cmd+0x771/0x9b0 net/bluetooth/hci_core.c:-1
 hci_sock_ioctl+0x415/0x7f0 net/bluetooth/hci_sock.c:1096
 sock_do_ioctl+0x152/0x3b0 net/socket.c:1194
 sock_ioctl+0x455/0x740 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Second to last potentially related work creation:
 kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xb4/0xc0 mm/kasan/generic.c:486
 kasan_record_aux_stack_noalloc+0xb/0x10 mm/kasan/generic.c:496
 insert_work+0x56/0x310 kernel/workqueue.c:1368
 __queue_work+0x9b6/0xd70 kernel/workqueue.c:1527
 queue_work_on+0x105/0x170 kernel/workqueue.c:1555
 queue_work include/linux/workqueue.h:510 [inline]
 hci_cmd_sync_run net/bluetooth/hci_sync.c:140 [inline]
 __hci_cmd_sync_sk+0xc2a/0xf70 net/bluetooth/hci_sync.c:162
 __hci_cmd_sync_status_sk net/bluetooth/hci_sync.c:253 [inline]
 __hci_cmd_sync_status net/bluetooth/hci_sync.c:277 [inline]
 hci_cmd_sync_status+0x52/0x130 net/bluetooth/hci_sync.c:288
 hci_dev_cmd+0x771/0x9b0 net/bluetooth/hci_core.c:-1
 hci_sock_ioctl+0x415/0x7f0 net/bluetooth/hci_sock.c:1096
 sock_do_ioctl+0x152/0x3b0 net/socket.c:1194
 sock_ioctl+0x455/0x740 net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff8881115e4000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 2560 bytes inside of
 8192-byte region [ffff8881115e4000, ffff8881115e6000)

The buggy address belongs to the physical page:
page:ffffea0004457800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1115e0
head:ffffea0004457800 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100043500
raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 316, tgid 316 (syz-executor295), ts 32248391268, free_ts 32238828744
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x213/0x220 mm/page_alloc.c:2637
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2644
 get_page_from_freelist+0x3a98/0x3b10 mm/page_alloc.c:4539
 __alloc_pages+0x234/0x610 mm/page_alloc.c:5837
 alloc_slab_page+0x6c/0xf0 include/linux/gfp.h:-1
 allocate_slab mm/slub.c:1962 [inline]
 new_slab+0x90/0x3e0 mm/slub.c:2015
 ___slab_alloc+0x6f9/0xb80 mm/slub.c:3203
 __slab_alloc+0x5d/0xa0 mm/slub.c:3302
 slab_alloc_node mm/slub.c:3387 [inline]
 __kmem_cache_alloc_node+0x207/0x2a0 mm/slub.c:3462
 __do_kmalloc_node mm/slab_common.c:937 [inline]
 __kmalloc+0xa3/0x1e0 mm/slab_common.c:951
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 hci_alloc_dev_priv+0x27/0x1c00 net/bluetooth/hci_core.c:2435
 hci_alloc_dev include/net/bluetooth/hci_core.h:1484 [inline]
 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:636 [inline]
 hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:712 [inline]
 hci_uart_tty_ioctl+0x401/0xa70 drivers/bluetooth/hci_ldisc.c:765
 tty_ioctl+0x903/0xc50 drivers/tty/tty_io.c:2785
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0x114/0x190 fs/ioctl.c:856
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856
 x64_sys_call+0x98/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1545 [inline]
 free_pcp_prepare mm/page_alloc.c:1619 [inline]
 free_unref_page_prepare+0x9f1/0xa00 mm/page_alloc.c:3581
 free_unref_page+0xb2/0x5c0 mm/page_alloc.c:3677
 free_the_page mm/page_alloc.c:830 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5926
 __free_slab+0xce/0x1a0 mm/slub.c:2039
 free_slab mm/slub.c:2054 [inline]
 discard_slab mm/slub.c:2060 [inline]
 __unfreeze_partials+0x165/0x1a0 mm/slub.c:2609
 put_cpu_partial+0xa9/0x100 mm/slub.c:2685
 __slab_free+0x1c8/0x280 mm/slub.c:3563
 do_slab_free mm/slub.c:3640 [inline]
 ___cache_free+0xc6/0xd0 mm/slub.c:3696
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0xc5/0x140 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x15a/0x180 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x24/0x80 mm/kasan/common.c:310
 kasan_slab_alloc include/linux/kasan.h:202 [inline]
 slab_post_alloc_hook+0x53/0x2c0 mm/slab.h:768
 slab_alloc_node mm/slub.c:3421 [inline]
 slab_alloc mm/slub.c:3431 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3438 [inline]
 kmem_cache_alloc+0x175/0x320 mm/slub.c:3447
 getname_flags+0xba/0x520 fs/namei.c:139
 getname+0x19/0x20 fs/namei.c:218
 do_sys_openat2+0xe0/0x870 fs/open.c:1335

Memory state around the buggy address:
 ffff8881115e4900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881115e4980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8881115e4a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff8881115e4a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8881115e4b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G    B              6.1.129-syzkaller-00017-g642656a36791 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__queue_work+0x4f1/0xd70 kernel/workqueue.c:-1
Code: 39 03 0f 84 40 01 00 00 e8 cc 57 2a 00 4c 89 e7 e8 34 46 d7 03 49 bd 00 00 00 00 00 fc ff df 4c 8b 65 d0 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 20 07 72 00 49 8b 3e e8 e8 3e d7
RSP: 0018:ffffc90000007c78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffffffff8701d580
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d00 R08: ffffffff814ae03b R09: 0000000000000007
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881115e49c8
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881115e49e0
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 000000012507d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 delayed_work_timer_fn+0x61/0x80 kernel/workqueue.c:1653
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1510
 expire_timers kernel/time/timer.c:1550 [inline]
 __run_timers+0x756/0xa10 kernel/time/timer.c:1826
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1839
 handle_softirqs+0x1db/0x650 kernel/softirq.c:624
 __do_softirq kernel/softirq.c:662 [inline]
 invoke_softirq kernel/softirq.c:479 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:711
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:723
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa9/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:40 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:75 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline]
RIP: 0010:acpi_idle_do_entry drivers/acpi/processor_idle.c:567 [inline]
RIP: 0010:acpi_idle_enter+0x416/0x760 drivers/acpi/processor_idle.c:704
Code: 89 de 48 83 e6 08 31 ff e8 87 35 53 fc 48 83 e3 08 0f 85 b1 00 00 00 0f 1f 44 00 00 e8 33 31 53 fc 0f 00 2d 7c 4f ce 00 fb f4 <fa> e9 e3 00 00 00 49 83 c7 04 4c 89 f8 48 c1 e8 03 42 0f b6 04 30
RSP: 0018:ffffffff87007bd0 EFLAGS: 000002d3
RAX: ffffffff8522091d RBX: 0000000000000000 RCX: ffffffff8701d580
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff87007c10 R08: ffffffff85220909 R09: fffffbfff0e03ab1
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: ffff88810a21b004 R14: dffffc0000000000 R15: ffff888109878864
 cpuidle_enter_state+0x5eb/0x17f0 drivers/cpuidle/cpuidle.c:251
 cpuidle_enter+0x5f/0xa0 drivers/cpuidle/cpuidle.c:369
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x3d1/0x580 kernel/sched/idle.c:303
 cpu_startup_entry+0x44/0x60 kernel/sched/idle.c:401
 rest_init+0x10b/0x130 init/main.c:731
 arch_call_rest_init+0xe/0xe init/main.c:891
 start_kernel+0x46c/0x4d8 init/main.c:1138
 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:555
 x86_64_start_kernel+0x7c/0x81 arch/x86/kernel/head64.c:536
 secondary_startup_64_no_verify+0xce/0xdb
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__queue_work+0x4f1/0xd70 kernel/workqueue.c:-1
Code: 39 03 0f 84 40 01 00 00 e8 cc 57 2a 00 4c 89 e7 e8 34 46 d7 03 49 bd 00 00 00 00 00 fc ff df 4c 8b 65 d0 4c 89 f0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 f7 e8 20 07 72 00 49 8b 3e e8 e8 3e d7
RSP: 0018:ffffc90000007c78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 000000007fffffff RCX: ffffffff8701d580
RDX: 0000000000000100 RSI: 000000007fffffff RDI: 000000007fffffff
RBP: ffffc90000007d00 R08: ffffffff814ae03b R09: 0000000000000007
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881115e49c8
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8881115e49e0
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 000000012507d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	89 de                	mov    %ebx,%esi
   2:	48 83 e6 08          	and    $0x8,%rsi
   6:	31 ff                	xor    %edi,%edi
   8:	e8 87 35 53 fc       	call   0xfc533594
   d:	48 83 e3 08          	and    $0x8,%rbx
  11:	0f 85 b1 00 00 00    	jne    0xc8
  17:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  1c:	e8 33 31 53 fc       	call   0xfc533154
  21:	0f 00 2d 7c 4f ce 00 	verw   0xce4f7c(%rip)        # 0xce4fa4
  28:	fb                   	sti
  29:	f4                   	hlt
* 2a:	fa                   	cli <-- trapping instruction
  2b:	e9 e3 00 00 00       	jmp    0x113
  30:	49 83 c7 04          	add    $0x4,%r15
  34:	4c 89 f8             	mov    %r15,%rax
  37:	48 c1 e8 03          	shr    $0x3,%rax
  3b:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax

Crashes (194):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/23 09:44 android14-6.1 642656a36791 53a8b9bd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/18 05:46 android14-6.1 ccc915784332 429ea007 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/18 03:42 android14-6.1 ccc915784332 429ea007 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/18 03:05 android14-6.1 ccc915784332 429ea007 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/18 02:25 android14-6.1 ccc915784332 429ea007 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2024/12/19 10:37 android14-6.1 e50cf165f4e7 1432fc84 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2024/12/02 04:36 android14-6.1 a887a44ace2a 68914665 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2024/12/01 23:39 android14-6.1 a887a44ace2a 68914665 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2024/12/01 11:17 android14-6.1 a887a44ace2a 68914665 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2024/12/01 07:06 android14-6.1 a887a44ace2a 68914665 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/15 03:02 android14-6.1 3cd01bb5bd37 d6b2ee52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/14 12:55 android14-6.1 53b26534cce7 a4fa04ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/13 17:12 android14-6.1 53b26534cce7 7344edeb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/12 16:34 android14-6.1 646380b087a5 f6671af7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/12 02:35 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 23:51 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 22:25 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 17:19 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 12:02 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 10:45 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 09:10 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 09:07 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/11 02:08 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/09 14:40 android14-6.1 646380b087a5 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/09 04:14 android14-6.1 646380b087a5 bb813bcc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/05 22:31 android14-6.1 7b89b57429c2 6ca47dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/05/02 08:51 android14-6.1 0c1a07d9c284 d7f099d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/23 08:20 android14-6.1 642656a36791 53a8b9bd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/23 08:03 android14-6.1 642656a36791 53a8b9bd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/23 08:02 android14-6.1 642656a36791 53a8b9bd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/20 10:58 android14-6.1 bc3d1d352ab6 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/20 04:39 android14-6.1 bc3d1d352ab6 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/17 07:14 android14-6.1 6684cdb34eae a95239b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/16 19:25 android14-6.1 05899bf38900 a95239b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/16 01:44 android14-6.1 efda22f3484c a95239b1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/14 11:56 android14-6.1 19a0fb1d3513 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/14 09:41 android14-6.1 19a0fb1d3513 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/04/12 23:33 android14-6.1 19a0fb1d3513 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/20 05:32 android14-6.1 a5f88b652947 50668798 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/18 05:32 android14-6.1 ccc915784332 429ea007 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/18 05:16 android14-6.1 ccc915784332 429ea007 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/17 23:54 android14-6.1 ccc915784332 429ea007 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/04 13:45 android14-6.1 4033df202b20 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/03 06:21 android14-6.1 2055772eada0 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/02 18:04 android14-6.1 2055772eada0 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/02/01 20:02 android14-6.1 2055772eada0 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/31 16:30 android14-6.1 554eb9d61ac0 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/30 15:56 android14-6.1 554eb9d61ac0 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/29 18:34 android14-6.1 554eb9d61ac0 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/29 16:37 android14-6.1 554eb9d61ac0 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/29 16:37 android14-6.1 554eb9d61ac0 136953f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/27 13:00 android14-6.1 2f2e115eecbd d99a33ad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/26 18:27 android14-6.1 ef4fb40b87a9 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/26 09:23 android14-6.1 ef4fb40b87a9 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2025/01/26 02:40 android14-6.1 ef4fb40b87a9 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
2024/12/01 01:14 android14-6.1 a887a44ace2a 68914665 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-1 KASAN: use-after-free Write in __run_timers
* Struck through repros no longer work on HEAD.