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general protection fault in inherit_task_group

Status: upstream: reported C repro on 2024/02/16 23:02
Reported-by: syzbot+087df0cef3d1b3199a9b@syzkaller.appspotmail.com
First crash: 673d, last: 92d
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 general protection fault in inherit_task_group 2 C 66 212d 673d 0/2 upstream: reported C repro on 2024/02/16 22:46
upstream general protection fault in inherit_task_group perf 2 C done done 4 784d 782d 25/29 fixed on 2023/12/21 03:45
linux-6.1 general protection fault in inherit_task_group origin:upstream missing-backport 2 C inconclusive 3 694d 785d 0/3 upstream: reported C repro on 2023/10/28 05:24
linux-5.15 general protection fault in inherit_task_group origin:upstream 2 C done 4 780d 786d 3/3 fixed on 2023/12/05 18:06
android-6-1 general protection fault in inherit_task_group origin:downstream 2 C 1 533d 673d 0/2 auto-obsoleted due to no activity on 2024/10/14 11:46
android-5-15 general protection fault in inherit_task_group origin:downstream 2 C 13 89d 673d 0/2 upstream: reported C repro on 2024/02/16 23:09
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/11/29 05:57 49m retest repro android13-5.10-lts OK log
2025/11/29 05:57 13m retest repro android13-5.10-lts OK log
2025/11/29 05:57 21m retest repro android13-5.10-lts OK log
2025/11/29 05:57 15m retest repro android13-5.10-lts OK log
2025/09/20 05:02 11m retest repro android13-5.10-lts report log
2025/09/20 05:02 12m retest repro android13-5.10-lts report log
2025/09/20 05:02 5m retest repro android13-5.10-lts report log
2025/09/20 05:02 12m retest repro android13-5.10-lts report log
2025/06/16 02:56 19m retest repro android13-5.10-lts report log
2025/06/16 02:56 16m retest repro android13-5.10-lts OK log

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f]
CPU: 0 PID: 24851 Comm: syz.0.11515 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025
RIP: 0010:inherit_group kernel/events/core.c:12929 [inline]
RIP: 0010:inherit_task_group+0x565/0x650 kernel/events/core.c:12973
Code: 81 c3 8c 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 92 00 00 00 8b 1b 49 81 c4 8c 00 00 00 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 92 00 00 00 41 89 1c 24 45 31 e4 44 89
RSP: 0018:ffffc90001437a20 EFLAGS: 00010207
RAX: 0000000000000011 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000195c000 RSI: 000000000000051d RDI: 000000000000051e
RBP: ffffc90001437a98 R08: dffffc0000000000 R09: ffffed1028cb4b48
R10: ffffed1028cb4b48 R11: 1ffff11028cb4b47 R12: 000000000000008c
R13: ffff8881270eeb78 R14: ffff8881270eb810 R15: dffffc0000000000
FS:  00007fa2c62a66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2892a396c0 CR3: 0000000126840000 CR4: 00000000003506b0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 perf_event_init_context kernel/events/core.c:13040 [inline]
 perf_event_init_task+0x250/0x4a0 kernel/events/core.c:13092
 copy_process+0x103b/0x32c0 kernel/fork.c:2242
 kernel_clone+0x23f/0x940 kernel/fork.c:2650
 __do_sys_clone kernel/fork.c:2776 [inline]
 __se_sys_clone kernel/fork.c:2760 [inline]
 __x64_sys_clone+0x176/0x1d0 kernel/fork.c:2760
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fa2c783dbe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa2c62a5fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fa2c7a74fa0 RCX: 00007fa2c783dbe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000200400
RBP: 00007fa2c78c0e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fa2c7a75038 R14: 00007fa2c7a74fa0 R15: 00007ffe20b72ce8
Modules linked in:
---[ end trace ba8163747dfdc4f8 ]---
RIP: 0010:inherit_group kernel/events/core.c:12929 [inline]
RIP: 0010:inherit_task_group+0x565/0x650 kernel/events/core.c:12973
Code: 81 c3 8c 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 92 00 00 00 8b 1b 49 81 c4 8c 00 00 00 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 92 00 00 00 41 89 1c 24 45 31 e4 44 89
RSP: 0018:ffffc90001437a20 EFLAGS: 00010207

RAX: 0000000000000011 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc9000195c000 RSI: 000000000000051d RDI: 000000000000051e
RBP: ffffc90001437a98 R08: dffffc0000000000 R09: ffffed1028cb4b48
R10: ffffed1028cb4b48 R11: 1ffff11028cb4b47 R12: 000000000000008c
R13: ffff8881270eeb78 R14: ffff8881270eb810 R15: dffffc0000000000
FS:  00007fa2c62a66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbc5893198 CR3: 0000000126840000 CR4: 00000000003506b0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
----------------
Code disassembly (best guess):
   0:	81 c3 8c 00 00 00    	add    $0x8c,%ebx
   6:	48 89 d8             	mov    %rbx,%rax
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax
  12:	84 c0                	test   %al,%al
  14:	0f 85 92 00 00 00    	jne    0xac
  1a:	8b 1b                	mov    (%rbx),%ebx
  1c:	49 81 c4 8c 00 00 00 	add    $0x8c,%r12
  23:	4c 89 e0             	mov    %r12,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 92 00 00 00    	jne    0xc9
  37:	41 89 1c 24          	mov    %ebx,(%r12)
  3b:	45 31 e4             	xor    %r12d,%r12d
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Crashes (48):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/09/05 21:01 android13-5.10-lts 48647f2c6800 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/08/29 06:34 android13-5.10-lts 1154f779f3f3 d401b9d7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/08/26 15:40 android13-5.10-lts 1154f779f3f3 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/08/14 10:47 android13-5.10-lts 1154f779f3f3 22ec1469 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/06/30 04:57 android13-5.10-lts 59e9a7228857 fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/06/16 20:16 android13-5.10-lts d76d4cd0623a d1716036 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/30 23:31 android13-5.10-lts cf6ed0f1511d 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/28 11:15 android13-5.10-lts cf6ed0f1511d 874a1386 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/26 08:23 android13-5.10-lts 7e2543346ff7 2d4582d0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/25 12:58 android13-5.10-lts 7e2543346ff7 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/19 05:24 android13-5.10-lts 7e2543346ff7 f41472b0 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/16 21:32 android13-5.10-lts 7e2543346ff7 f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/14 07:21 android13-5.10-lts 7e2543346ff7 7344edeb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/12 11:55 android13-5.10-lts 7e2543346ff7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/11 02:53 android13-5.10-lts 7e2543346ff7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/10 12:22 android13-5.10-lts 7e2543346ff7 77908e5f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/08 11:35 android13-5.10-lts 7e2543346ff7 dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/03 15:41 android13-5.10-lts ab07aeb2c93d b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/05/02 01:43 android13-5.10-lts ab07aeb2c93d 51b137cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/04/29 09:03 android13-5.10-lts ab07aeb2c93d aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/04/29 06:32 android13-5.10-lts ab07aeb2c93d aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/04/20 02:06 android13-5.10-lts ba8b8b193394 2a20f901 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2025/04/19 23:38 android13-5.10-lts ba8b8b193394 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/12/11 02:33 android13-5.10-lts 0eb852f47fe5 cfc402b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/11/28 19:26 android13-5.10-lts 139a6bb26d9d 5df23865 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/11/28 15:08 android13-5.10-lts 139a6bb26d9d 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/11/11 15:36 android13-5.10-lts 6a01908517df 0c4b1325 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/09/23 22:24 android13-5.10-lts 8d23314f588a 89298aad .config console log report syz / log [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/09/23 21:29 android13-5.10-lts 8d23314f588a 89298aad .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/07/23 04:10 android13-5.10-lts 1240968f7644 708c10c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/06/25 17:02 android13-5.10-lts b58b8f9dad93 04bd2a30 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/06/19 02:30 android13-5.10-lts b58b8f9dad93 639d6cdf .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/06/17 01:04 android13-5.10-lts e6f44899ce5d f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/06/13 23:15 android13-5.10-lts d3c4d815bf09 a9616ff5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/06/12 22:16 android13-5.10-lts d3c4d815bf09 f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/06/12 17:52 android13-5.10-lts d3c4d815bf09 f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/06/12 14:22 android13-5.10-lts d3c4d815bf09 f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/05/23 11:36 android13-5.10-lts a8e7f812fbc1 4c2072ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/05/10 07:23 android13-5.10-lts 70b6ab09a34b de979bc2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/03/13 09:50 android13-5.10-lts dd976ecce2ce db5b7ff0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/03/05 15:02 android13-5.10-lts dd976ecce2ce f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/03/02 22:06 android13-5.10-lts dd976ecce2ce 25905f5d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/03/01 00:25 android13-5.10-lts dd976ecce2ce 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/02/27 07:47 android13-5.10-lts dd976ecce2ce 05e69c83 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/02/25 18:09 android13-5.10-lts dd976ecce2ce 8d446f15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/02/21 23:27 android13-5.10-lts dd976ecce2ce 345111b5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/02/21 03:40 android13-5.10-lts dd976ecce2ce 3af7dd65 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
2024/02/16 23:02 android13-5.10-lts dd976ecce2ce 578f7538 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-10-perf general protection fault in inherit_task_group
* Struck through repros no longer work on HEAD.