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KASAN: use-after-free Write in __run_timers (2)

Status: upstream: reported C repro on 2025/02/25 14:17
Reported-by: syzbot+2659421f0005292f59ab@syzkaller.appspotmail.com
First crash: 127d, last: 9d14h
▶ ▼ Similar bugs (13)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-6-1 KASAN: use-after-free Write in __run_timers origin:lts C 220 8h48m 185d 0/2 upstream: reported C repro on 2024/12/01 07:19
upstream KASAN: use-after-free Write in __run_timers 6144 2782d 2842d 3/28 fixed on 2017/11/11 01:37
android-54 KASAN: use-after-free Write in __run_timers syz 449 336d 1788d 0/2 auto-obsoleted due to no activity on 2024/09/11 00:16
upstream KASAN: invalid-access Write in __run_timers kernel 8 1566d 1572d 0/28 auto-closed as invalid on 2021/05/20 13:15
upstream KMSAN: uninit-value in __run_timers (3) reiserfs C error 4 638d 674d 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 96d 96d 0/28 closed as invalid on 2025/03/30 10:14
android-54 KASAN: slab-out-of-bounds Write in __run_timers 4 1437d 1627d 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 371d 367d 0/28 auto-obsoleted due to no activity on 2024/08/27 10:03
upstream BUG: unable to handle kernel paging request in __run_timers net 2 2336d 2345d 0/28 auto-closed as invalid on 2019/07/10 08:52
upstream KASAN: slab-out-of-bounds Write in __run_timers 19 2816d 2832d 0/28 closed as invalid on 2017/10/22 12:45
upstream general protection fault in __run_timers kernel 35 2815d 2836d 0/28 closed as invalid on 2017/10/22 12:45
upstream general protection fault in __run_timers (2) kernel C 5 2475d 2490d 0/28 closed as invalid on 2018/09/05 12:51
upstream general protection fault in __run_timers (3) kernel 1 1728d 1724d 0/28 auto-closed as invalid on 2020/12/09 00:33

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 454 Comm: syz-executor264 Not tainted 5.4.290-syzkaller-00017-g6b07fcd94a6a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__hlist_del include/linux/list.h:791 [inline]
RIP: 0010:detach_timer kernel/time/timer.c:824 [inline]
RIP: 0010:expire_timers kernel/time/timer.c:1482 [inline]
RIP: 0010:__run_timers+0x7b0/0xbe0 kernel/time/timer.c:1817
Code: 89 e7 e8 63 51 3f 00 4d 89 2c 24 4d 85 ed 74 2e e8 a5 66 0f 00 49 83 c5 08 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 32 51 3f 00 4d 89 65 00 eb 05 e8 77
RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010802
RAX: 1bd5a00000000025 RBX: 1ffff1103ae4d639 RCX: dffffc0000000000
RDX: 0000000000000101 RSI: 0000000000000004 RDI: ffff8881f6e09ce0
RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f6e09e20
R13: dead00000000012a R14: 1ffff1103ae4d638 R15: ffff8881d726b1c8
FS:  0000555559ce7480(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555559ce7438 CR3: 00000001e52b9000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830
 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x195/0x1c0 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:539 [inline]
 smp_apic_timer_interrupt+0x11a/0x490 arch/x86/kernel/apic/apic.c:1161
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834
 </IRQ>
RIP: 0010:__set_page_owner_handle mm/page_owner.c:171 [inline]
RIP: 0010:__set_page_owner+0xa4/0x1e0 mm/page_owner.c:192
Code: 41 ff cd 49 c7 c7 c0 3e f8 85 49 c1 ef 03 48 8b 05 91 6f 5f 04 48 8d 2c 03 48 8d 7c 03 08 48 89 f8 48 c1 e8 03 42 0f b6 04 30 <84> c0 0f 85 aa 00 00 00 8b 44 24 04 89 45 08 48 89 e8 48 c1 e8 03
RSP: 0018:ffff8881e46ef210 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8881f276f8e8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881f276f8f8
RBP: ffff8881f276f8f0 R08: ffffffff8198b324 R09: ffffed103edcb135
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffffffff0bf07d8
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook mm/page_alloc.c:2165 [inline]
 prep_new_page+0x18f/0x370 mm/page_alloc.c:2171
 get_page_from_freelist+0x2d13/0x2d90 mm/page_alloc.c:3794
 __alloc_pages_nodemask+0x393/0x840 mm/page_alloc.c:4893
 __alloc_pages include/linux/gfp.h:503 [inline]
 __alloc_pages_node include/linux/gfp.h:516 [inline]
 alloc_pages_node include/linux/gfp.h:530 [inline]
 pcpu_alloc_pages mm/percpu-vm.c:94 [inline]
 pcpu_populate_chunk+0x1bb/0xd00 mm/percpu-vm.c:284
 pcpu_alloc+0x79e/0x1050 mm/percpu.c:1714
 prealloc_init+0x238/0x800 kernel/bpf/hashtab.c:154
 htab_map_alloc+0x638/0x930 kernel/bpf/hashtab.c:385
 find_and_alloc_map kernel/bpf/syscall.c:122 [inline]
 map_create kernel/bpf/syscall.c:573 [inline]
 __do_sys_bpf kernel/bpf/syscall.c:2873 [inline]
 __se_sys_bpf+0x3291/0xbcb0 kernel/bpf/syscall.c:2849
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f4300555899
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 1f 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd4c737a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4300555899
RDX: 0000000000000048 RSI: 0000400000000840 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd4c737a98
R13: 00007ffd4c737ad0 R14: 0000000000000004 R15: 431bde82d7b634db
Modules linked in:
---[ end trace c50793ccf37d12dc ]---
RIP: 0010:__hlist_del include/linux/list.h:791 [inline]
RIP: 0010:detach_timer kernel/time/timer.c:824 [inline]
RIP: 0010:expire_timers kernel/time/timer.c:1482 [inline]
RIP: 0010:__run_timers+0x7b0/0xbe0 kernel/time/timer.c:1817
Code: 89 e7 e8 63 51 3f 00 4d 89 2c 24 4d 85 ed 74 2e e8 a5 66 0f 00 49 83 c5 08 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 32 51 3f 00 4d 89 65 00 eb 05 e8 77
RSP: 0018:ffff8881f6e09d60 EFLAGS: 00010802
RAX: 1bd5a00000000025 RBX: 1ffff1103ae4d639 RCX: dffffc0000000000
RDX: 0000000000000101 RSI: 0000000000000004 RDI: ffff8881f6e09ce0
RBP: ffff8881f6e09ec8 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881f6e09e20
R13: dead00000000012a R14: 1ffff1103ae4d638 R15: ffff8881d726b1c8
FS:  0000555559ce7480(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555559ce7438 CR3: 00000001e52b9000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	89 e7                	mov    %esp,%edi
   2:	e8 63 51 3f 00       	call   0x3f516a
   7:	4d 89 2c 24          	mov    %r13,(%r12)
   b:	4d 85 ed             	test   %r13,%r13
   e:	74 2e                	je     0x3e
  10:	e8 a5 66 0f 00       	call   0xf66ba
  15:	49 83 c5 08          	add    $0x8,%r13
  19:	4c 89 e8             	mov    %r13,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ef             	mov    %r13,%rdi
  33:	e8 32 51 3f 00       	call   0x3f516a
  38:	4d 89 65 00          	mov    %r12,0x0(%r13)
  3c:	eb 05                	jmp    0x43
  3e:	e8                   	.byte 0xe8
  3f:	77                   	.byte 0x77

Crashes (752):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/25 14:11 android12-5.4 6b07fcd94a6a d34966d1 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/24 02:59 android12-5.4 cd8e74fa0fa3 f8cc0c83 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/23 22:23 android12-5.4 cd8e74fa0fa3 f8cc0c83 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/23 16:11 android12-5.4 cd8e74fa0fa3 f8cc0c83 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/23 13:07 android12-5.4 cd8e74fa0fa3 fa44301a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/23 11:56 android12-5.4 cd8e74fa0fa3 fa44301a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/23 01:15 android12-5.4 cd8e74fa0fa3 fa44301a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/22 18:21 android12-5.4 cd8e74fa0fa3 0919b50b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/21 21:53 android12-5.4 cd8e74fa0fa3 dc5d3808 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/21 08:34 android12-5.4 cd8e74fa0fa3 b47f9e02 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/20 15:44 android12-5.4 cd8e74fa0fa3 b47f9e02 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/20 12:45 android12-5.4 cd8e74fa0fa3 b47f9e02 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/20 03:05 android12-5.4 cd8e74fa0fa3 b84f0537 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/18 20:18 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/18 05:42 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/16 06:39 android12-5.4 cd8e74fa0fa3 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/16 04:13 android12-5.4 cd8e74fa0fa3 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/16 01:48 android12-5.4 cd8e74fa0fa3 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/15 10:06 android12-5.4 cd8e74fa0fa3 d6b2ee52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/15 04:48 android12-5.4 cd8e74fa0fa3 d6b2ee52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/15 01:14 android12-5.4 cd8e74fa0fa3 d6b2ee52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/14 22:10 android12-5.4 cd8e74fa0fa3 a4fa04ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/14 14:09 android12-5.4 cd8e74fa0fa3 a4fa04ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/02/24 17:42 android12-5.4 6b07fcd94a6a d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: use-after-free Write in __run_timers
2025/05/26 04:15 android12-5.4 cd8e74fa0fa3 2d4582d0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/26 03:08 android12-5.4 cd8e74fa0fa3 2d4582d0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/25 15:46 android12-5.4 cd8e74fa0fa3 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: slab-out-of-bounds Write in __run_timers
2025/05/25 13:18 android12-5.4 cd8e74fa0fa3 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/25 12:04 android12-5.4 cd8e74fa0fa3 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/24 22:31 android12-5.4 cd8e74fa0fa3 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/23 18:48 android12-5.4 cd8e74fa0fa3 f8cc0c83 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/23 10:49 android12-5.4 cd8e74fa0fa3 fa44301a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/23 04:59 android12-5.4 cd8e74fa0fa3 fa44301a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/22 06:33 android12-5.4 cd8e74fa0fa3 0919b50b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/21 09:52 android12-5.4 cd8e74fa0fa3 b47f9e02 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/19 05:17 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/19 00:33 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/18 09:50 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/18 06:43 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/18 03:20 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/17 04:30 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: slab-out-of-bounds Write in __run_timers
2025/05/17 00:54 android12-5.4 cd8e74fa0fa3 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/16 14:49 android12-5.4 cd8e74fa0fa3 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: slab-out-of-bounds Read in __run_timers
2025/05/16 10:57 android12-5.4 cd8e74fa0fa3 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/15 23:34 android12-5.4 cd8e74fa0fa3 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan KASAN: slab-out-of-bounds Write in __run_timers
2025/05/15 22:03 android12-5.4 cd8e74fa0fa3 cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan BUG: unable to handle kernel paging request in __run_timers
2025/05/15 05:54 android12-5.4 cd8e74fa0fa3 d6b2ee52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
2025/05/14 20:04 android12-5.4 cd8e74fa0fa3 a4fa04ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-perf-kasan general protection fault in __run_timers
* Struck through repros no longer work on HEAD.