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WARNING in do_open_execat (3)

Status: auto-obsoleted due to no activity on 2025/11/17 13:40
Subsystems: squashfs
[Documentation on labels]
Reported-by: syzbot+a6bec34b1270dec555f4@syzkaller.appspotmail.com
First crash: 327d, last: 243d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [squashfs?] WARNING in do_open_execat (3) 0 (1) 2024/12/31 06:22
▶ ▼ Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in do_open_execat (2) missing-backport origin:upstream -1 C done 14 11d 768d 0/3 upstream: reported C repro on 2023/10/13 04:40
upstream WARNING in do_open_execat (2) ntfs3 -1 C 18 577d 588d 0/29 auto-obsoleted due to no activity on 2024/06/30 18:49
linux-5.15 WARNING in do_open_execat -1 1 975d 975d 0/3 auto-obsoleted due to no activity on 2023/07/18 02:48
upstream WARNING in do_open_execat ntfs3 -1 C error done 12 664d 824d 25/29 fixed on 2024/03/20 11:33
linux-6.1 WARNING in do_open_execat missing-backport origin:lts-only -1 C inconclusive 16 22d 795d 0/3 upstream: reported C repro on 2023/09/16 02:14
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/11/17 13:08 30m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/10/17 09:20 21m retest repro upstream OK log
2025/09/08 01:40 18m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/08/08 09:03 16m retest repro upstream report log
2025/06/29 13:47 19m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/05/30 08:32 15m retest repro upstream report log
2025/04/20 10:36 18m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/03/21 08:15 16m retest repro upstream report log
2025/02/09 09:42 21m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/01/10 07:57 14m retest repro upstream report log

Sample crash report:
loop0: detected capacity change from 0 to 8
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5331 at fs/exec.c:912 do_open_execat+0x3b7/0x4f0 fs/exec.c:912
Modules linked in:
CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-07267-g405057718a1f #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:do_open_execat+0x3b7/0x4f0 fs/exec.c:912
Code: 74 48 49 81 ff 01 f0 ff ff 73 3f e8 e3 7c 86 ff 4c 89 ff e8 4b 8a fe ff eb 35 e8 d4 7c 86 ff e9 c4 fd ff ff e8 ca 7c 86 ff 90 <0f> 0b 90 eb c7 e8 bf 7c 86 ff e9 af fd ff ff e8 b5 7c 86 ff 48 c7
RSP: 0018:ffffc9000d22fce0 EFLAGS: 00010283
RAX: ffffffff8238fb66 RBX: 000000000000e000 RCX: 0000000000100000
RDX: ffffc9000e76a000 RSI: 0000000000000197 RDI: 0000000000000198
RBP: ffffc9000d22fdb0 R08: ffffffff8238f986 R09: 0000000000000000
R10: ffffc9000d22fb40 R11: fffff52001a45f6a R12: ffffc9000d22fd20
R13: 1ffff92001a45fa0 R14: ffff888045540578 R15: ffff888042ac1e00
FS:  00007fcc722996c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc661ff000 CR3: 0000000053094000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 alloc_bprm+0x2a/0xbe0 fs/exec.c:1527
 do_execveat_common+0x1ae/0x710 fs/exec.c:1925
 do_execveat fs/exec.c:2059 [inline]
 __do_sys_execveat fs/exec.c:2133 [inline]
 __se_sys_execveat fs/exec.c:2127 [inline]
 __x64_sys_execveat+0xc4/0xe0 fs/exec.c:2127
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc7138cd29
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:00007fcc72299038 EFLAGS: 00000246 ORIG_RAX: 0000000000000142
RAX: ffffffffffffffda RBX: 00007fcc715a5fa0 RCX: 00007fcc7138cd29
RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007fcc7140e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fcc715a5fa0 R15: 00007ffec85ef9c8
 </TASK>

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/26 04:48 upstream 405057718a1f 9fbd772e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_open_execat
2025/01/21 06:25 upstream 3d3a9c8b89d4 6e87cfa2 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_open_execat
2024/12/27 07:51 upstream d6ef8b40d075 d3ccff63 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root WARNING in do_open_execat
2024/12/27 06:13 upstream d6ef8b40d075 d3ccff63 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in do_open_execat
2025/01/18 15:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1950a0af2d55 f2cb035c .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in do_open_execat
* Struck through repros no longer work on HEAD.