Hello,
syzbot found the following issue on:
HEAD commit: a2392f333575 drm/panthor: Clean up FW version information ..
git tree: git://
git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output:
https://syzkaller.appspot.com/x/log.txt?x=14603004580000
kernel config:
https://syzkaller.appspot.com/x/.config?x=12ccc0a681e19f95
dashboard link:
https://syzkaller.appspot.com/bug?extid=d290f3869712bf0c5113
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
CC: [
[email protected] [email protected] [email protected] [email protected]]
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image:
https://storage.googleapis.com/syzbot-assets/aa9dc8dca3f7/disk-a2392f33.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/96ca6097aca7/vmlinux-a2392f33.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/78dee40677fb/Image-a2392f33.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
[email protected]
Unable to handle kernel paging request at virtual address 001f7fe000366f45
Mem abort info:
ESR = 0x0000000096000004
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
Data abort info:
ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
CM = 0, WnR = 0, TnD = 0, TagAccess = 0
GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[001f7fe000366f45] address between user and kernel address ranges
Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 UID: 0 PID: 17 Comm: ksoftirqd/0 Not tainted 6.14.0-rc7-syzkaller-ga2392f333575 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __lock_acquire+0xfc/0x7904 kernel/locking/lockdep.c:5091
lr : lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5851
sp : ffff800097d97260
x29: ffff800097d97520 x28: ffff800080363e98 x27: 0000000000000000
x26: ffff0001b378c540 x25: 0000000000000000 x24: 0000000000000001
x23: 0000000000000000 x22: 1ffff00011f780cd x21: 00ffff0001b37a2b
x20: 0000000000000001 x19: 0000000000000000 x18: 1fffe000366f1886
x17: ffff80008fbbd000 x16: ffff8000832b7b9c x15: 0000000000000001
x14: 1fffe0001a938b2d x13: dfff800000000000 x12: ffff700012fb2e74
x11: ffff80008046cfd0 x10: ffff80008fbc0668 x9 : 00000000000000f3
x8 : 001fffe000366f45 x7 : ffff800080363e98 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 00ffff0001b37a2b
Call trace:
__lock_acquire+0xfc/0x7904 kernel/locking/lockdep.c:5091 (P)
lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5851
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:154
__queue_work+0x8d4/0x1324
queue_work_on+0xe0/0x1a0 kernel/workqueue.c:2392
queue_work include/linux/workqueue.h:662 [inline]
xlog_bio_end_io+0x84/0x98 fs/xfs/xfs_log.c:1605
bio_endio+0x840/0x87c block/bio.c:1548
blk_update_request+0x4ac/0xda0 block/blk-mq.c:983
blk_mq_end_request+0x54/0x88 block/blk-mq.c:1145
blk_flush_complete_seq+0x58c/0xaf4 block/blk-flush.c:191
flush_end_io+0x9f0/0xd68 block/blk-flush.c:250
__blk_mq_end_request+0x3b4/0x558 block/blk-mq.c:1135
blk_mq_end_request+0x68/0x88 block/blk-mq.c:1147
lo_complete_rq+0x188/0x2f4 drivers/block/loop.c:395
blk_complete_reqs block/blk-mq.c:1220 [inline]
blk_done_softirq+0x11c/0x168 block/blk-mq.c:1225
handle_softirqs+0x320/0xd34 kernel/softirq.c:561
run_ksoftirqd+0x70/0xc0 kernel/softirq.c:950
smpboot_thread_fn+0x4b0/0x90c kernel/smpboot.c:164
kthread+0x65c/0x7b0 kernel/kthread.c:464
ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862
Code: f007ba88 b9466908 340090a8 d343fea8 (386d6908)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: f007ba88 adrp x8, 0xf753000
4: b9466908 ldr w8, [x8, #1640]
8: 340090a8 cbz w8, 0x121c
c: d343fea8 lsr x8, x21, #3
* 10: 386d6908 ldrb w8, [x8, x13] <-- trapping instruction
---
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