syzbot


WARNING in raw_ioctl

Status: upstream: reported C repro on 2025/10/24 23:11
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+d8fd35fa6177afa8c92b@syzkaller.appspotmail.com
First crash: 2d23h, last: 5h28m
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [mm?] WARNING in raw_ioctl 5 (11) 2025/10/25 16:43
Last patch testing requests (5)
Created Duration User Patch Repo Result
2025/10/25 15:52 47m krishnagopi487@gmail.com patch linux-next OK log
2025/10/25 13:34 23m krishnagopi487@gmail.com patch linux-next OK log
2025/10/25 13:20 8m krishnagopi487@gmail.com patch linux-next error
2025/10/25 13:02 11m krishnagopi487@gmail.com patch linux-next error
2025/10/25 09:16 1h07m krishnagopi487@gmail.com patch linux-next OK log

Sample crash report:
------------[ cut here ]------------
WARNING: mm/page_alloc.c:5190 at __alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5190, CPU#1: syz.0.17/6001
Modules linked in:
CPU: 1 UID: 0 PID: 6001 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5190
Code: 74 10 4c 89 e7 89 54 24 0c e8 64 b9 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 b1 7d 70 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24
RSP: 0018:ffffc90003017920 EFLAGS: 00010246
RAX: ffffc90003017900 RBX: 0000000000000013 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90003017988
RBP: ffffc90003017a18 R08: ffffc90003017987 R09: 0000000000000000
R10: ffffc90003017960 R11: fffff52000602f31 R12: 0000000000000000
R13: 1ffff92000602f28 R14: 0000000000040cc0 R15: dffffc0000000000
FS:  000055558dedb500(0000) GS:ffff888125ddc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffef4504a80 CR3: 0000000072ffa000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2418
 ___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:5583
 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5614
 __do_kmalloc_node mm/slub.c:5630 [inline]
 __kmalloc_noprof+0x4c9/0x800 mm/slub.c:5654
 kmalloc_noprof include/linux/slab.h:961 [inline]
 raw_alloc_io_data drivers/usb/gadget/legacy/raw_gadget.c:673 [inline]
 raw_ioctl_ep_read drivers/usb/gadget/legacy/raw_gadget.c:1162 [inline]
 raw_ioctl+0x18fb/0x3be0 drivers/usb/gadget/legacy/raw_gadget.c:1325
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 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: 0033:0x7fccefd8efc9
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:00007ffef4505ad8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fcceffe5fa0 RCX: 00007fccefd8efc9
RDX: 00002000000000c0 RSI: 00000000c0085508 RDI: 0000000000000004
RBP: 00007fccefe11f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcceffe5fa0 R14: 00007fcceffe5fa0 R15: 0000000000000003
 </TASK>

Crashes (15):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/24 07:48 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/24 07:16 linux-next 72fb0170ef1f c0460fcd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/26 23:34 upstream 4bb1f7e19c4a c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in raw_ioctl
2025/10/26 23:25 upstream 4bb1f7e19c4a c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in raw_ioctl
2025/10/26 22:29 upstream 4bb1f7e19c4a c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in raw_ioctl
2025/10/26 22:29 upstream 4bb1f7e19c4a c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in raw_ioctl
2025/10/26 22:09 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in raw_ioctl
2025/10/25 04:03 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in raw_ioctl
2025/10/24 06:16 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/24 06:09 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/24 06:08 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/24 05:45 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/24 05:44 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/24 05:36 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
2025/10/24 05:36 linux-next 72fb0170ef1f c0460fcd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in raw_ioctl
* Struck through repros no longer work on HEAD.