syzbot


WARNING in minix_unlink

Status: upstream: reported C repro on 2024/11/22 18:44
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+320c57a47bdabc1f294b@syzkaller.appspotmail.com
First crash: 406d, last: 23d
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in minix_unlink (log)
Repro: C syz .config
  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [fs?] WARNING in minix_unlink 6 (8) 2024/11/25 05:49
Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in minix_unlink origin:upstream -1 C 105 2d06h 472d 0/3 upstream: reported C repro on 2024/09/15 23:46
linux-6.1 WARNING in minix_unlink origin:upstream missing-backport -1 C error 60 5d00h 391d 0/3 upstream: reported C repro on 2024/12/06 04:33
linux-6.6 WARNING in minix_unlink (2) origin:lts-only -1 C 6 3d07h 3d17h 0/2 upstream: reported C repro on 2025/12/28 17:43
linux-6.6 WARNING in minix_unlink origin:upstream -1 C done 12 102d 103d 2/2 fixed on 2025/10/30 16:45
Last patch testing requests (11)
Created Duration User Patch Repo Result
2025/12/25 04:30 19m retest repro upstream OK log
2025/12/25 04:30 20m retest repro upstream OK log
2025/12/23 17:29 22m retest repro linux-next OK log
2025/12/23 13:04 28m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/12/23 13:04 37m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/12/23 08:38 40m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/12/23 08:38 55m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/12/23 08:38 55m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/12/23 08:38 56m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/12/23 08:38 44m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2024/11/24 19:13 19m surajsonawane0215@gmail.com patch git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log

Sample crash report:
Trying to free block not [  149.583937][ T5804] Trying to free block not in datazone
minix_free_inode: bit 6 already cleared
Trying to free block not in datazone
minix_free_inode: bit 7 already cleared
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5804 at fs/inode.c:417 drop_nlink+0xc5/0x110 fs/inode.c:417
Modules linked in:
CPU: 1 UID: 0 PID: 5804 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:drop_nlink+0xc5/0x110 fs/inode.c:417
Code: c0 08 00 00 be 08 00 00 00 e8 37 6a ec ff f0 48 ff 83 c0 08 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc cc e8 0c a6 8a ff 90 <0f> 0b 90 eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5b ff ff ff
RSP: 0018:ffffc90004c67c50 EFLAGS: 00010293
RAX: ffffffff82340734 RBX: ffff88803d958bc0 RCX: ffff88801c3dbc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1dac8ef R12: 1ffff11007b2b181
R13: ffffea000178d300 R14: ffff88803d958c08 R15: dffffc0000000000
FS:  000055556aa78500(0000) GS:ffff888126ef4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6636457000 CR3: 0000000056662000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 inode_dec_link_count include/linux/fs.h:2655 [inline]
 minix_unlink+0x1de/0x290 fs/minix/namei.c:157
 vfs_unlink+0x39a/0x660 fs/namei.c:4673
 do_unlinkat+0x345/0x570 fs/namei.c:4737
 __do_sys_unlink fs/namei.c:4783 [inline]
 __se_sys_unlink fs/namei.c:4781 [inline]
 __x64_sys_unlink+0x47/0x50 fs/namei.c:4781
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff09e63ecf7
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 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:00007fffcbe2d6d8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff09e63ecf7
RDX: 00007fffcbe2d700 RSI: 00007fffcbe2d790 RDI: 00007fffcbe2d790
RBP: 00007fffcbe2d790 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007fffcbe2e880
R13: 00007ff09e6c3d7d R14: 0000000000024536 R15: 00007fffcbe2f950
 </TASK>

Crashes (458):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/11/28 11:11 upstream e1afacb68573 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/11/26 18:55 upstream 30f09200cc4a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/11/12 20:58 upstream 24172e0d7990 07e030de .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/11/09 16:53 upstream 439fc29dfd3b 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/11/03 12:59 upstream 6146a0f1dfae 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/11/02 05:56 upstream 691d401c7e0e 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/10/30 14:09 upstream e53642b87a4f fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/10/19 22:27 upstream d9043c79ba68 1c8c8cd8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/10/16 18:57 upstream 7ea30958b305 19568248 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/10/14 02:32 upstream 3a8660878839 b6605ba8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/10/12 05:04 upstream 98906f9d850e ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/10/03 17:50 upstream e406d57be7bd 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/10/03 05:58 upstream e406d57be7bd 49379ee0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/30 03:40 upstream 1896ce8eb6c6 86341da6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/26 15:33 upstream 4ff71af020ae 0abd0691 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/21 17:54 upstream f975f08c2e89 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/21 00:47 upstream 3b08f56fbbb9 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/19 20:59 upstream 097a6c336d00 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/18 06:33 upstream d4b779985a6c e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/16 15:34 upstream 46a51f4f5eda e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/15 06:16 upstream f83ec76bf285 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in minix_unlink
2025/09/08 02:42 upstream 6ab41fca2e80 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/07 22:23 upstream 6ab41fca2e80 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/09/06 06:13 upstream c8ed9b5c02a5 d291dd2d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/08/31 22:40 upstream 5c3b3264e585 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/08/30 15:40 upstream 11e7861d680c 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in minix_unlink
2025/08/21 13:39 upstream 41cd3fd15263 0b9605c8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in minix_unlink
2025/08/21 09:40 upstream 41cd3fd15263 0b9605c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/08/20 18:18 upstream b19a97d57c15 0b9605c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/08/18 11:13 upstream 8d561baae505 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/08/15 19:26 upstream ee94b00c1a64 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in minix_unlink
2025/06/07 11:13 upstream c0c9379f235d 4826c28e .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-upstream-fs WARNING in minix_unlink
2024/12/14 17:25 upstream a446e965a188 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in minix_unlink
2024/11/25 04:16 upstream 9f16d5e6f220 68da6d95 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in minix_unlink
2025/07/05 23:01 upstream a79a588fc176 4f67c4ae .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-snapshot-upstream-root WARNING in minix_unlink
2025/07/05 18:49 upstream a79a588fc176 4f67c4ae .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-snapshot-upstream-root WARNING in minix_unlink
2025/04/30 04:29 upstream 8bac8898fe39 85a5a23f .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-snapshot-upstream-root WARNING in minix_unlink
2025/04/20 00:17 upstream 8560697b23dc 2a20f901 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-snapshot-upstream-root WARNING in minix_unlink
2025/10/13 06:21 linux-next 2b763d465239 ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in minix_unlink
2025/10/13 01:43 linux-next 2b763d465239 ff1712fe .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in minix_unlink
2025/10/07 11:10 linux-next 4a7153147192 8ef35d49 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-linux-next-kasan-gce-root WARNING in minix_unlink
2025/08/17 11:06 linux-next 931e46dcbc7e 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in minix_unlink
2025/08/17 02:05 linux-next 931e46dcbc7e 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in minix_unlink
2025/12/09 06:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 05c93f3395ed d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/11/09 08:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci e424ed997df8 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/10/19 20:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 1c8c8cd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/10/15 23:25 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 19568248 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/10/08 10:40 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 7e2882b3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/09/27 19:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2213e57a69f0 001c9061 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/09/20 09:44 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 506ba4ea4cf5 67c37560 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/09/15 02:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8736259279a3 e2beed91 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/09/11 03:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c199ef1fa61a fdeaa69b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/09/10 19:27 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c199ef1fa61a fdeaa69b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/09/02 14:35 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/08/30 12:16 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 807a3b61 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/08/15 04:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 dcc075fb .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/08/14 07:18 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8f5ae30d69d7 22ec1469 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in minix_unlink
2025/08/01 10:28 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 82af5ea7c611 0c075d67 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)] ci-upstream-gce-arm64 WARNING in minix_unlink
2024/12/21 23:37 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 573067a5a685 d7f584ee .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in minix_unlink
2024/11/27 12:20 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 52b38cc1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in minix_unlink
2024/11/21 01:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 4fca1650 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in minix_unlink
2024/11/20 23:14 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 4fca1650 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in minix_unlink
2024/11/20 21:13 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 4fca1650 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in minix_unlink
2024/11/20 19:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7b1d1d4cfac0 4fca1650 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 WARNING in minix_unlink
* Struck through repros no longer work on HEAD.