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general protection fault in do_renameat2

Status: upstream: reported C repro on 2023/09/24 22:41
Bug presence: origin:downstream
[Documentation on labels]
Reported-by: syzbot+3983560c9946a34ea12c@syzkaller.appspotmail.com
First crash: 873d, last: 5d13h
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2023/09/24 android13-5.15-lts (ToT) ea586874d2f9 C [report] general protection fault in do_renameat2
2023/09/24 lts (merge base) aff03380bda4 C Didn't crash
2023/09/24 upstream (ToT) 6465e260f487 C Didn't crash
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 general protection fault in do_renameat2 2 C 96 5d09h 866d 0/2 upstream: reported C repro on 2023/09/15 06:30
android-6-12 general protection fault in do_renameat2 origin:downstream 2 C 16 78d 212d 0/1 premoderation: reported C repro on 2025/06/30 10:33
android-6-1 general protection fault in do_renameat2 origin:downstream 2 C done 45 3h09m 865d 0/2 upstream: reported C repro on 2023/09/17 05:40
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/12/29 13:12 10m retest repro android13-5.15-lts report log
2025/12/02 04:10 19m retest repro android13-5.15-lts report log
2025/12/02 04:10 14m retest repro android13-5.15-lts report log
2025/12/02 04:10 38m retest repro android13-5.15-lts report log
2025/12/02 04:10 14m retest repro android13-5.15-lts report log
2025/11/18 03:16 8m retest repro android13-5.15-lts report log
2025/11/18 03:16 7m retest repro android13-5.15-lts report log
2025/11/18 03:16 15m retest repro android13-5.15-lts report log
2025/11/18 03:16 8m retest repro android13-5.15-lts report log
2025/11/18 03:16 6m retest repro android13-5.15-lts report log
▶ ▼ Fix bisection attempts (6)
Created Duration User Patch Repo Result
2024/10/27 16:04 1h41m bisect fix android13-5.15-lts OK (0) job log log
2024/05/19 07:07 43m bisect fix android13-5.15-lts OK (0) job log log
2024/02/03 08:17 32m bisect fix android13-5.15-lts OK (0) job log log
2023/12/31 13:55 37m bisect fix android13-5.15-lts OK (0) job log log
2023/12/01 07:42 35m bisect fix android13-5.15-lts OK (0) job log log
2023/10/31 11:46 52m bisect fix android13-5.15-lts OK (0) job log log

Sample crash report:
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 373 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__d_entry_type include/linux/dcache.h:404 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:409 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:455 [inline]
RIP: 0010:do_renameat2+0x4cb/0xfd0 fs/namei.c:4941
Code: 89 c5 48 3d 01 f0 ff ff 72 0f e8 20 ac b5 ff 4c 8b 64 24 20 e9 47 04 00 00 4d 89 ec 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 04 84 c0 0f 85 20 06 00 00 41 8b 5d 00 be 00 00 70 00
RSP: 0018:ffffc90000c37ce0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888110922200 RCX: ffff888110914f00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888110914f00
RBP: ffffc90000c37ed8 R08: ffff88810d04c38f R09: 1ffff11021a09871
R10: dffffc0000000000 R11: ffffed1021a09872 R12: 0000000000000001
R13: 0000000000000008 R14: 1ffff92000186f01 R15: 0000000000000000
FS:  00007fa00aec56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa00aea3ff8 CR3: 000000011b9c5000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __do_sys_rename fs/namei.c:5039 [inline]
 __se_sys_rename fs/namei.c:5037 [inline]
 __x64_sys_rename+0x86/0x90 fs/namei.c:5037
 x64_sys_call+0x680/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:83
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fa00b060cb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa00aec5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fa00b2dbfa0 RCX: 00007fa00b060cb9
RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000200000000100
RBP: 00007fa00b0cebf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa00b2dc038 R14: 00007fa00b2dbfa0 R15: 00007fff3ee09228
 </TASK>
Modules linked in:
---[ end trace 946e44bc61ac4528 ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:404 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:409 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:455 [inline]
RIP: 0010:do_renameat2+0x4cb/0xfd0 fs/namei.c:4941
Code: 89 c5 48 3d 01 f0 ff ff 72 0f e8 20 ac b5 ff 4c 8b 64 24 20 e9 47 04 00 00 4d 89 ec 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 04 84 c0 0f 85 20 06 00 00 41 8b 5d 00 be 00 00 70 00
RSP: 0018:ffffc90000c37ce0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888110922200 RCX: ffff888110914f00
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888110914f00
RBP: ffffc90000c37ed8 R08: ffff88810d04c38f R09: 1ffff11021a09871
R10: dffffc0000000000 R11: ffffed1021a09872 R12: 0000000000000001
R13: 0000000000000008 R14: 1ffff92000186f01 R15: 0000000000000000
FS:  00007fa00aec56c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa00aea3ff8 CR3: 000000011b9c5000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	89 c5                	mov    %eax,%ebp
   2:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   8:	72 0f                	jb     0x19
   a:	e8 20 ac b5 ff       	call   0xffb5ac2f
   f:	4c 8b 64 24 20       	mov    0x20(%rsp),%r12
  14:	e9 47 04 00 00       	jmp    0x460
  19:	4d 89 ec             	mov    %r13,%r12
  1c:	49 c1 ec 03          	shr    $0x3,%r12
  20:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  27:	fc ff df
* 2a:	41 0f b6 04 04       	movzbl (%r12,%rax,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 20 06 00 00    	jne    0x657
  37:	41 8b 5d 00          	mov    0x0(%r13),%ebx
  3b:	be 00 00 70 00       	mov    $0x700000,%esi

Crashes (54):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/23 15:48 android13-5.15-lts 00b50d06692d e2b1b6e6 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2026/01/20 19:34 android13-5.15-lts 630deefd7859 06648d9c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/11/04 00:54 android13-5.15-lts 8a8f52308945 686bf657 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/11/01 01:46 android13-5.15-lts 1edb21e89ce4 2c50b6a9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/07/27 06:19 android13-5.15-lts a71626bd56a5 fb8f743d .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/07/15 13:06 android13-5.15-lts eabc268e4fb2 03fcfc4b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/04/21 03:59 android13-5.15-lts 8034ec1338e8 2a20f901 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/01/10 22:42 android13-5.15-lts 19092c8155b4 6dbc6a9b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/12 21:49 android13-5.15-lts db06c48ab67e eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/12 21:08 android13-5.15-lts db06c48ab67e eaeb5c15 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/02/25 22:21 android13-5.15-lts 993bed180178 8d446f15 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2023/09/24 22:32 android13-5.15-lts ea586874d2f9 0b6a67ac .config strace log report syz C [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2026/01/12 21:36 android13-5.15-lts 050dc55b0457 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2026/01/02 10:17 android13-5.15-lts 050dc55b0457 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/12/05 22:58 android13-5.15-lts 057fdbf6d3c7 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/10/26 17:27 android13-5.15-lts 1edb21e89ce4 c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/09/29 09:00 android13-5.15-lts 8d934e0056f7 001c9061 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/09/05 12:56 android13-5.15-lts da3dbfdd15be d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/05/31 07:48 android13-5.15-lts 4032a894ccb2 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/05/29 22:06 android13-5.15-lts 4032a894ccb2 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/04/21 03:16 android13-5.15-lts 8034ec1338e8 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/01/13 05:06 android13-5.15-lts 19092c8155b4 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2025/01/10 22:17 android13-5.15-lts 19092c8155b4 6dbc6a9b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/09/12 22:38 android13-5.15-lts e6fb3b0fa87f 60e1a995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/09/12 22:38 android13-5.15-lts e6fb3b0fa87f 60e1a995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/09/08 09:35 android13-5.15-lts 53be7c8abe11 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/09/08 09:35 android13-5.15-lts 53be7c8abe11 9750182a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/09/05 23:47 android13-5.15-lts 53be7c8abe11 464ac2ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/28 14:55 android13-5.15-lts 29d153aabd54 ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/21 00:59 android13-5.15-lts 29d153aabd54 9f0ab3fb .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/12 18:25 android13-5.15-lts 70e1a731d986 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/12 18:25 android13-5.15-lts 70e1a731d986 842184b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/11 11:33 android13-5.15-lts 70e1a731d986 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/11 11:33 android13-5.15-lts 70e1a731d986 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/07 13:53 android13-5.15-lts 70e1a731d986 109d2082 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/08/04 21:26 android13-5.15-lts 70e1a731d986 1786a2a8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/30 09:07 android13-5.15-lts d0a6506ecafd 5187fc86 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/28 16:28 android13-5.15-lts 4edafe6c0231 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/28 16:27 android13-5.15-lts 4edafe6c0231 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/28 12:31 android13-5.15-lts 4edafe6c0231 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/28 12:31 android13-5.15-lts 4edafe6c0231 46eb10b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/20 07:34 android13-5.15-lts db06c48ab67e b88348e9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/14 22:18 android13-5.15-lts db06c48ab67e eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/14 14:18 android13-5.15-lts db06c48ab67e eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/14 14:18 android13-5.15-lts db06c48ab67e eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/12 20:25 android13-5.15-lts db06c48ab67e eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/07/12 20:25 android13-5.15-lts db06c48ab67e eaeb5c15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/03/31 15:10 android13-5.15-lts 993bed180178 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/03/28 03:56 android13-5.15-lts 993bed180178 120789fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/03/25 10:05 android13-5.15-lts 993bed180178 0ea90952 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2024/03/16 18:05 android13-5.15-lts 993bed180178 d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2023/10/01 00:55 android13-5.15-lts ea586874d2f9 8e26a358 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
2023/09/08 09:35 android13-5.15-lts ea586874d2f9 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-15 general protection fault in do_renameat2
* Struck through repros no longer work on HEAD.