syzbot


WARNING in raw_ioctl

Status: premoderation: reported C repro on 2026/01/21 06:16
Bug presence: origin:lts
[Documentation on labels]
Reported-by: syzbot+c1a7c02b573916574b31@syzkaller.appspotmail.com
First crash: 4d01h, last: 10h20m
Bug presence (2)
Date Name Commit Repro Result
2026/01/22 lts (merge base) 318a47068f7b C [report] WARNING in raw_ioctl
2026/01/22 upstream (ToT) a66191c590b3 C Failed due to an error; will retry later
Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 WARNING in raw_ioctl origin:upstream missing-backport -1 C error 77 16d 87d 0/2 upstream: reported C repro on 2025/10/29 17:15
linux-6.1 WARNING in raw_ioctl origin:upstream missing-backport -1 C error 121 15d 87d 0/3 upstream: reported C repro on 2025/10/29 18:33
upstream WARNING in raw_ioctl usb mm -1 C 664 48d 92d 29/29 fixed on 2026/01/07 12:29
linux-5.15 WARNING in raw_ioctl origin:upstream -1 C 146 6d15h 87d 0/3 upstream: reported C repro on 2025/10/29 16:52

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 380 at mm/page_alloc.c:5234 __alloc_pages_noprof+0x109/0x7e0 mm/page_alloc.c:5234
Modules linked in:
CPU: 1 UID: 0 PID: 380 Comm: syz.2.17 Not tainted syzkaller #0 bfede744b46277b76d69ebe6cb8c22209d769bcb
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__alloc_pages_noprof+0x109/0x7e0 mm/page_alloc.c:5234
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 ea a8 0b 06 00 0f 85 c2 00 00 00 c6 05 dd a8 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:ffffc90000f9f960 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000013 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000f9fa18
RBP: ffffc90000f9fa88 R08: ffffc90000f9fa17 R09: 0000000000000000
R10: ffffc90000f9fa00 R11: fffff520001f3f43 R12: ffffc90000f9f9a0
R13: dffffc0000000000 R14: 1ffff920001f3f30 R15: 0000000000000000
FS:  000055558ff97500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc73857f40 CR3: 0000000115654000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 ___kmalloc_large_node+0x81/0x210 mm/slub.c:-1
 __kmalloc_large_node_noprof+0x1e/0xd0 mm/slub.c:4367
 __do_kmalloc_node mm/slub.c:4383 [inline]
 __kmalloc_noprof+0x326/0x500 mm/slub.c:4407
 kmalloc_noprof include/linux/slab.h:885 [inline]
 raw_alloc_io_data drivers/usb/gadget/legacy/raw_gadget.c:673 [inline]
 raw_ioctl_ep0_read drivers/usb/gadget/legacy/raw_gadget.c:776 [inline]
 raw_ioctl+0x1888/0x3740 drivers/usb/gadget/legacy/raw_gadget.c:1313
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0x132/0x1b0 fs/ioctl.c:893
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fc925f9acb9
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:00007ffc73858f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc926215fa0 RCX: 00007fc925f9acb9
RDX: 0000200000000080 RSI: 00000000c0085504 RDI: 0000000000000003
RBP: 00007fc926008bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc926215fac R14: 00007fc926215fa0 R15: 00007fc926215fa0
 </TASK>
---[ end trace 0000000000000000 ]---

Crashes (53):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/21 08:19 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/24 21:51 android16-6.12 2f0f4b0a9a68 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/24 19:15 android16-6.12 2f0f4b0a9a68 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/24 16:14 android16-6.12 2f0f4b0a9a68 40acda8a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/24 07:50 android16-6.12 211c75c00cd3 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/24 05:38 android16-6.12 211c75c00cd3 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/24 03:59 android16-6.12 211c75c00cd3 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/24 02:09 android16-6.12 211c75c00cd3 4f25b9b4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 19:58 android16-6.12 e75f33468e02 e2b1b6e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 17:14 android16-6.12 e75f33468e02 e2b1b6e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 16:17 android16-6.12 e75f33468e02 e2b1b6e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 15:37 android16-6.12 e75f33468e02 e2b1b6e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 11:19 android16-6.12 e75f33468e02 e2b1b6e6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 08:41 android16-6.12 e75f33468e02 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 08:37 android16-6.12 e75f33468e02 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 07:42 android16-6.12 e75f33468e02 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 05:53 android16-6.12 da606bc67c00 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 05:25 android16-6.12 da606bc67c00 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 04:03 android16-6.12 da606bc67c00 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 01:10 android16-6.12 da606bc67c00 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/23 00:35 android16-6.12 da606bc67c00 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 22:21 android16-6.12 da606bc67c00 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 22:03 android16-6.12 da606bc67c00 82c9c083 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 14:19 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 12:40 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 12:16 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 11:58 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 09:34 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 08:37 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 08:14 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 07:47 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 07:12 android16-6.12 f33ca06267f8 a16aed1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 02:20 android16-6.12 f33ca06267f8 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/22 01:54 android16-6.12 f33ca06267f8 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 21:01 android16-6.12 f33ca06267f8 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 16:50 android16-6.12 f33ca06267f8 8fc37797 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 13:51 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 11:08 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 10:23 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 07:33 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 07:22 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 07:22 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 07:04 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 07:04 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 06:57 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 06:56 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 06:15 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
2026/01/21 06:15 android16-6.12 f33ca06267f8 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-6-12-rust WARNING in raw_ioctl
* Struck through repros no longer work on HEAD.