WARNING in incfs_realloc_mount_info

Status: premoderation: reported C repro on 2025/06/20 16:31
Bug presence: origin:downstream
[Documentation on labels]
Reported-by: syzbot+75ff1aecfbeeefb78736@syzkaller.appspotmail.com
First crash: 447d, last: 12h15m
Bug presence (3)
Date Name Commit Repro Result
2025/06/23 android16-6.12 (ToT) d9fd901baa98 C [report] WARNING in incfs_realloc_mount_info
2025/06/23 lts (merge base) 83b4161a63b8 C Didn't crash
2025/06/23 upstream (ToT) 86731a2a651e C Didn't crash
Last patch testing requests (2)
Created Duration User Patch Repo Result
2025/12/01 23:26 12m retest repro android16-6.12 error
2025/12/01 23:26 4m retest repro android16-6.12 error

Sample crash report:
WARNING: CPU: 0 PID: 313 at mm/page_alloc.c:5285 __alloc_pages_noprof+0x109/0x7e0 mm/page_alloc.c:5285
Modules linked in:
CPU: 0 UID: 0 PID: 313 Comm: syz-executor231 Not tainted syzkaller #0 119f1c0cd44458c2ddc7f806e6d4d2dd11ae7dae
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__alloc_pages_noprof+0x109/0x7e0 mm/page_alloc.c:5285
Code: 00 0f 1f 44 00 00 83 fb 0b 72 28 b8 00 20 00 00 23 44 24 40 75 1d 80 3d 54 db 0b 06 00 0f 85 c2 00 00 00 c6 05 47 db 0b 06 01 <0f> 0b 31 c0 e9 b4 00 00 00 83 fb 0a 0f 87 a9 00 00 00 44 8b 64 24
RSP: 0018:ffffc900011ff880 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 000000000000001e RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900011ff938
RBP: ffffc900011ff9a8 R08: ffffc900011ff937 R09: 0000000000000000
R10: ffffc900011ff920 R11: fffff5200023ff27 R12: ffffc900011ff8c0
R13: dffffc0000000000 R14: 1ffff9200023ff14 R15: 0000000000000000
FS:  0000555575ce53c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000012f0ee000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 ___kmalloc_large_node+0x81/0x220 mm/slub.c:-1
 __kmalloc_large_node_noprof+0x1e/0xd0 mm/slub.c:4367
 __do_kmalloc_node mm/slub.c:4383 [inline]
 __kmalloc_noprof+0x326/0x510 mm/slub.c:4407
 kmalloc_noprof include/linux/slab.h:885 [inline]
 kzalloc_noprof include/linux/slab.h:1017 [inline]
 incfs_realloc_mount_info+0xa7/0x4c0 fs/incfs/data_mgmt.c:113
 incfs_alloc_mount_info+0x478/0x5f0 fs/incfs/data_mgmt.c:84
 incfs_mount_fs+0x3ca/0x970 fs/incfs/vfs.c:1854
 legacy_get_tree+0x106/0x1b0 fs/fs_context.c:662
 vfs_get_tree+0x9e/0x290 fs/super.c:1820
 do_new_mount+0x251/0xb40 fs/namespace.c:3567
 path_mount+0x66a/0xff0 fs/namespace.c:3894
 do_mount fs/namespace.c:3907 [inline]
 __do_sys_mount fs/namespace.c:4117 [inline]
 __se_sys_mount+0x2bf/0x480 fs/namespace.c:4094
 __x64_sys_mount+0xc3/0xf0 fs/namespace.c:4094
 x64_sys_call+0x2021/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f2c38073749
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd92f9b248 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000200000000200 RCX: 00007f2c38073749
RDX: 00002000000001c0 RSI: 0000200000000100 RDI: 0000200000000080
RBP: 0030656c69662f2e R08: 0000200000000200 R09: 0000000000000000
R10: 0000000000010002 R11: 0000000000000246 R12: 00007ffd92f9b388
R13: 0000000000000002 R14: 00007f2c38103ca0 R15: 0000000000000002
 </TASK>
---[ end trace 0000000000000000 ]---
incfs: Error allocating

Crashes (465):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/15 18:38 android16-6.12 26014f6c6077 746171ee .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/05/04 22:04 android16-6.12 ea1f41c3bdb9 a898ba9c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/05/02 08:54 android16-6.12 8ed163f1fc8c a0d91488 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/01/21 08:30 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2025/10/01 07:59 android16-6.12 389151e65c06 65a0eece .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2025/06/20 16:59 android16-6.12 6c1c18fcb8b7 804b3919 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/09/10 22:54 android16-6.12 de3d34623482 1fe56c0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/09/09 23:51 android16-6.12 89698cd757af 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/09/08 17:24 android16-6.12 136b3cf43ec1 243b72f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/09/07 20:26 android16-6.12 e0485c4d49da 680aa3e1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/29 21:01 android16-6.12 36bee94a7cf9 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/29 18:10 android16-6.12 36bee94a7cf9 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/29 12:46 android16-6.12 36bee94a7cf9 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/29 08:03 android16-6.12 36bee94a7cf9 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/28 11:01 android16-6.12 3ebc81d80f95 e2fa417d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/25 22:22 android16-6.12 e8191d250396 a9a1fc32 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/25 08:09 android16-6.12 7f32621dc7d3 614e416a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/23 02:39 android16-6.12 e8c85685a629 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/22 14:35 android16-6.12 e8c85685a629 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/22 12:51 android16-6.12 e8c85685a629 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/22 11:21 android16-6.12 e8c85685a629 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/15 18:05 android16-6.12 26014f6c6077 746171ee .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/11 08:44 android16-6.12 64d481b3eec9 508909ea .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/08 06:36 android16-6.12 b54741372957 5d63f80b .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/08/03 23:42 android16-6.12 5098494bc7f3 9451e17e .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/31 15:33 android16-6.12 7d66c8550304 7664cf44 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/31 08:30 android16-6.12 7d66c8550304 aaffb173 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/29 14:59 android16-6.12 6f69867ef141 6ef5c1e2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/25 04:28 android16-6.12 579215f16d4e 492bab15 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/19 11:16 android16-6.12 0fd55a309793 72524a66 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/17 17:21 android16-6.12 1a1783c017b1 8aaff637 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/17 06:02 android16-6.12 1a1783c017b1 7f27c57a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/08 23:54 android16-6.12 4dd097d4271e b9f1ceaa .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/03 02:36 android16-6.12 d36feda1de57 2b70b115 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/02 19:11 android16-6.12 d36feda1de57 2b70b115 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/02 12:14 android16-6.12 0da04f2d52e4 27192279 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/02 09:38 android16-6.12 0da04f2d52e4 27192279 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/02 07:14 android16-6.12 0da04f2d52e4 27192279 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/02 01:04 android16-6.12 645d9a280828 27192279 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/01 20:58 android16-6.12 645d9a280828 27192279 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/01 20:42 android16-6.12 645d9a280828 27192279 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/01 12:48 android16-6.12 645d9a280828 00a5cf1c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/01 05:07 android16-6.12 529c9d587ac1 00a5cf1c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/01 01:51 android16-6.12 529c9d587ac1 00e8b0fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/07/01 00:15 android16-6.12 529c9d587ac1 00e8b0fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/30 16:19 android16-6.12 529c9d587ac1 00e8b0fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/30 14:22 android16-6.12 529c9d587ac1 00e8b0fd .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/29 22:19 android16-6.12 cc28ee76a596 6a0c72dc .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/29 05:35 android16-6.12 220923cf9f76 fb92f11c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/28 23:37 android16-6.12 220923cf9f76 fb92f11c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/28 20:46 android16-6.12 220923cf9f76 fb92f11c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/28 15:20 android16-6.12 220923cf9f76 fb92f11c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
2026/06/28 12:15 android16-6.12 220923cf9f76 fb92f11c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in incfs_realloc_mount_info
* Struck through repros no longer work on HEAD.