From: syzbot <syzbot+7fb8a372e1f6add936dd@syzkaller.appspotmail.com>
To: linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, luiz.dentz@gmail.com,
marcel@holtmann.org, syzkaller-bugs@googlegroups.com
Subject: [syzbot] [bluetooth?] [usb?] general protection fault in lookup_or_create_module_kobject
Date: Mon, 05 May 2025 00:05:36 -0700 [thread overview]
Message-ID: <68186340.a70a0220.254cdc.0047.GAE@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 7a13c14ee59d Merge tag 'for-6.15-rc4-tag' of git://git.ker..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=117ddf74580000
kernel config: https://syzkaller.appspot.com/x/.config?x=a9a25b7a36123454
dashboard link: https://syzkaller.appspot.com/bug?extid=7fb8a372e1f6add936dd
compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=107a139b980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1788302f980000
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-7a13c14e.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/723f1b9e0adc/vmlinux-7a13c14e.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e75e39192fa8/bzImage-7a13c14e.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+7fb8a372e1f6add936dd@syzkaller.appspotmail.com
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000005
RBP: 00007fc431fa0100 R08: 0000000000000000 R09: 00302e6364755f79
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc43289e520 R14: 00007fc431f9f0d0 R15: 00007ffd3ac3bac8
</TASK>
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 0 UID: 0 PID: 5424 Comm: syz-executor428 Not tainted 6.15.0-rc4-syzkaller-00051-g7a13c14ee59d #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000da77840 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffffffff8b585807 RCX: 92d5a11e0ccfe200
RDX: 0000000000000000 RSI: ffffffff8b585807 RDI: 0000000000000004
RBP: ffffffff819b39d8 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1efda6f R12: 0000000000000000
R13: 0000000000000020 R14: 0000000000000020 R15: 0000000000000001
FS: 00007fc431fa16c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc431f9eff8 CR3: 0000000052ad3000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__kasan_check_byte+0x12/0x40 mm/kasan/common.c:556
kasan_check_byte include/linux/kasan.h:399 [inline]
lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5840
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162
complete_with_flags kernel/sched/completion.c:20 [inline]
complete+0x28/0x1b0 kernel/sched/completion.c:47
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x228/0x480 lib/kobject.c:737
lookup_or_create_module_kobject+0x150/0x170 kernel/params.c:783
module_add_driver+0xb9/0x310 drivers/base/module.c:46
bus_add_driver+0x391/0x640 drivers/base/bus.c:682
driver_register+0x23a/0x320 drivers/base/driver.c:249
usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1700
raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
raw_ioctl+0x149a/0x3c90 drivers/usb/gadget/legacy/raw_gadget.c:1306
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc43281c58b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007fc431f9f020 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc43281c58b
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000005
RBP: 00007fc431fa0100 R08: 0000000000000000 R09: 00302e6364755f79
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc43289e520 R14: 00007fc431f9f0d0 R15: 00007ffd3ac3bac8
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000da77840 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: ffffffff8b585807 RCX: 92d5a11e0ccfe200
RDX: 0000000000000000 RSI: ffffffff8b585807 RDI: 0000000000000004
RBP: ffffffff819b39d8 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1efda6f R12: 0000000000000000
R13: 0000000000000020 R14: 0000000000000020 R15: 0000000000000001
FS: 00007fc431fa16c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc431f9eff8 CR3: 0000000052ad3000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
7: 00
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
16: 90 nop
17: 90 nop
18: 66 0f 1f 00 nopw (%rax)
1c: 48 c1 ef 03 shr $0x3,%rdi
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 0f b6 04 07 movzbl (%rdi,%rax,1),%eax <-- trapping instruction
2e: 3c 08 cmp $0x8,%al
30: 0f 92 c0 setb %al
33: c3 ret
34: cc int3
35: cc int3
36: cc int3
37: cc int3
38: cc int3
39: 66 data16
3a: 66 data16
3b: 66 data16
3c: 66 data16
3d: 66 data16
3e: 66 data16
3f: 2e cs
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
next reply other threads:[~2025-05-05 7:05 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-05 7:05 syzbot [this message]
2025-05-06 13:54 ` [syzbot] #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 01f95500a162fca88cefab9ed64ceded5afabc12 syzbot
2025-05-07 6:03 ` [syzbot] #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 0d8d44db295ccad20052d6301ef49ff01fb8ae2d syzbot
[not found] <4a21d4ea-e726-4e0a-a3b9-42c65430b6ad@yandex.ru>
2025-05-06 14:16 ` [syzbot] [bluetooth?] [usb?] general protection fault in lookup_or_create_module_kobject syzbot
[not found] <f935da4d-3cb5-4cfd-a01b-c0abafb824ad@yandex.ru>
2025-05-07 6:24 ` syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=68186340.a70a0220.254cdc.0047.GAE@google.com \
--to=syzbot+7fb8a372e1f6add936dd@syzkaller.appspotmail.com \
--cc=linux-bluetooth@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=luiz.dentz@gmail.com \
--cc=marcel@holtmann.org \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.