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WARNING in __v9fs_get_acl

Status: upstream: reported C repro on 2023/03/13 04:51
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+a2c0ccf6ce88f46ee379@syzkaller.appspotmail.com
First crash: 875d, last: 5h58m
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2024/05/01 linux-6.1.y (ToT) dcbc050cb0d3 C [report] WARNING in __v9fs_get_acl
2023/05/04 upstream (ToT) 1a5304fecee5 C [report] WARNING in v9fs_fid_get_acl
2024/05/01 upstream (ToT) 0106679839f7 C Didn't crash
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in __v9fs_get_acl missing-backport origin:upstream -1 C error 1249 10h30m 875d 0/3 upstream: reported C repro on 2023/03/13 03:41
upstream WARNING in __v9fs_get_acl v9fs -1 C done error 224 940d 1448d 0/29 auto-obsoleted due to no activity on 2024/06/22 13:42
▶ ▼ Fix bisection attempts (4)
Created Duration User Patch Repo Result
2024/12/18 11:56 12h01m fix candidate upstream error job log
2024/10/15 07:19 0m fix candidate upstream error job log
2024/07/30 23:28 12h00m fix candidate upstream error job log
2024/05/12 05:42 12h05m fix candidate upstream error job log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4244 at mm/page_alloc.c:5581 __alloc_pages+0x3b7/0x770 mm/page_alloc.c:5581
Modules linked in:
CPU: 1 PID: 4244 Comm: syz-executor707 Not tainted 6.1.128-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__alloc_pages+0x3b7/0x770 mm/page_alloc.c:5581
Code: fc ff df 0f 85 fa 00 00 00 44 89 e9 81 e1 7f ff ff ff a9 00 00 04 00 41 0f 44 cd 41 89 cd e9 ea 00 00 00 c6 05 fc 8b b0 0c 01 <0f> 0b 41 83 fc 0a 0f 86 1e fd ff ff 45 31 e4 48 c7 44 24 20 0e 36
RSP: 0018:ffffc90003b879e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90003b87a68
RBP: ffffc90003b87b00 R08: dffffc0000000000 R09: ffffc90003b87a40
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000002a
R13: 0000000000040d40 R14: 1ffff92000770f44 R15: 1ffff92000770f40
FS:  0000555586480380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000001ef25000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __alloc_pages_node include/linux/gfp.h:237 [inline]
 alloc_pages_node include/linux/gfp.h:260 [inline]
 __kmalloc_large_node+0x91/0x1d0 mm/slab_common.c:1077
 __do_kmalloc_node mm/slab_common.c:924 [inline]
 __kmalloc+0x118/0x230 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 __v9fs_get_acl+0x40/0x110 fs/9p/acl.c:28
 v9fs_get_acl+0x93/0x280 fs/9p/acl.c:62
 v9fs_mount+0x954/0xc30 fs/9p/vfs_super.c:184
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1573
 do_new_mount+0x2ba/0xb40 fs/namespace.c:3056
 do_mount fs/namespace.c:3399 [inline]
 __do_sys_mount fs/namespace.c:3607 [inline]
 __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3584
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9a60104869
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd34eba3d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00002000000003c0 RCX: 00007f9a60104869
RDX: 0000200000000b80 RSI: 00002000000003c0 RDI: 0000000000000000
RBP: 0000200000000580 R08: 0000200000000580 R09: 00007ffd34eba5b8
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9a6014d017
R13: 00007ffd34eba5a8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (1988):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/05 12:35 linux-6.1.y 0cbb5f65e52f 5896748e .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2024/01/16 14:39 linux-6.1.y fec3b1451d5f 2a7bcc7f .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2023/12/01 18:45 linux-6.1.y 6ac30d748bb0 f819d6f7 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2023/04/01 11:35 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/06/15 20:58 linux-6.1.y 58485ff1a74f 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/03/04 21:09 linux-6.1.y 3a8358583626 c3901742 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/03/04 20:00 linux-6.1.y 3a8358583626 c3901742 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2024/10/27 19:45 linux-6.1.y 7ec6f9fa3d97 65e8686b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2024/03/22 20:28 linux-6.1.y d7543167affd 4b6cdce6 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2024/03/12 09:15 linux-6.1.y 61adba85cc40 6ee49f2e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2023/10/27 20:09 linux-6.1.y 32c9cdbe383c 3c418d72 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2023/04/01 06:38 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2023/07/19 12:43 linux-6.1.y 61fd484b2cf6 022df2bb .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2023/07/11 00:23 linux-6.1.y 61fd484b2cf6 d47e94ee .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2023/03/13 08:36 linux-6.1.y 1cc3fcf63192 5205ef30 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2023/03/13 04:51 linux-6.1.y 1cc3fcf63192 5205ef30 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/08/03 23:51 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/08/02 16:14 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/07/28 07:39 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/07/27 14:43 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/07/23 14:56 linux-6.1.y 3369c6df2fae e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/07/14 10:24 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/07/10 09:51 linux-6.1.y 04d1ccaa9c28 956bd956 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/07/09 23:30 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/07/09 22:21 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/06/24 09:05 linux-6.1.y 58485ff1a74f e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/06/24 08:58 linux-6.1.y 58485ff1a74f e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/06/07 16:01 linux-6.1.y 58485ff1a74f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/06/07 11:50 linux-6.1.y 58485ff1a74f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/27 02:48 linux-6.1.y da3c5173c55f 874a1386 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/18 01:15 linux-6.1.y 02b72ccb5f9d f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/17 10:47 linux-6.1.y 02b72ccb5f9d f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/16 10:36 linux-6.1.y 02b72ccb5f9d cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/16 08:42 linux-6.1.y 02b72ccb5f9d cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/08 02:32 linux-6.1.y ac7079a42ea5 dbf35fa1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/04 05:12 linux-6.1.y b6736e03756f b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/05/04 05:09 linux-6.1.y b6736e03756f b0714e37 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in __v9fs_get_acl
2025/08/03 21:52 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/08/03 18:07 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/08/02 12:41 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/31 11:35 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/27 11:38 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/24 20:35 linux-6.1.y 3594f306da12 65d60d73 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/23 13:01 linux-6.1.y 3369c6df2fae e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/14 10:12 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/12 08:28 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/12 07:27 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/09 18:37 linux-6.1.y 04d1ccaa9c28 f4e5e155 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/08 13:09 linux-6.1.y 04d1ccaa9c28 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/07/05 19:52 linux-6.1.y 7e69c33e4858 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/28 23:48 linux-6.1.y 7e69c33e4858 fc9d8ee5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/24 17:07 linux-6.1.y 58485ff1a74f e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/24 07:20 linux-6.1.y 58485ff1a74f e2f27c35 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/17 11:10 linux-6.1.y 58485ff1a74f cfebc887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/16 22:26 linux-6.1.y 58485ff1a74f d1716036 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/15 19:59 linux-6.1.y 58485ff1a74f 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/11 13:03 linux-6.1.y 58485ff1a74f 5d7e17ca .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/10 02:20 linux-6.1.y 58485ff1a74f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/07 17:49 linux-6.1.y 58485ff1a74f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/06/07 11:03 linux-6.1.y 58485ff1a74f 4826c28e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/17 07:14 linux-6.1.y 02b72ccb5f9d f41472b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
2025/05/16 02:44 linux-6.1.y 02b72ccb5f9d cfde8269 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in __v9fs_get_acl
* Struck through repros no longer work on HEAD.