Hello,
syzbot found the following issue on:
HEAD commit: 3299fb36854f Linux 5.15.108
git tree: linux-5.15.y
console output:
https://syzkaller.appspot.com/x/log.txt?x=1186ede0280000
kernel config:
https://syzkaller.appspot.com/x/.config?x=7da5cf0bf5f17e50
dashboard link:
https://syzkaller.appspot.com/bug?extid=f18c975097035ab8b6ba
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image:
https://storage.googleapis.com/syzbot-assets/e9dec7cd5a48/disk-3299fb36.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/e054af719cf1/vmlinux-3299fb36.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/5ae902fb312f/Image-3299fb36.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+f18c97...@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 0 PID: 26887 at fs/udf/inode.c:650 udf_extend_file fs/udf/inode.c:649 [inline]
WARNING: CPU: 0 PID: 26887 at fs/udf/inode.c:650 udf_setsize+0xcd4/0x1070 fs/udf/inode.c:1236
Modules linked in:
CPU: 0 PID: 26887 Comm: syz-executor.5 Not tainted 5.15.108-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : udf_extend_file fs/udf/inode.c:649 [inline]
pc : udf_setsize+0xcd4/0x1070 fs/udf/inode.c:1236
lr : udf_extend_file fs/udf/inode.c:649 [inline]
lr : udf_setsize+0xcd4/0x1070 fs/udf/inode.c:1236
sp : ffff80001cc578a0
x29: ffff80001cc57a50 x28: 0000000000000009 x27: ffff80001cc57940
x26: ffff70000398af24 x25: 0000000000000200 x24: 0000000000000000
x23: ffff000120743562 x22: 0000000000001000 x21: 1fffe000240e86ac
x20: ffff0001207434a4 x19: ffff000120743498 x18: 0000000000000001
x17: ff808000098372fc x16: ffff80000824c77c x15: ffff8000098372fc
x14: 0000000000000001 x13: ffffffffffffffff x12: 0000000000000000
x11: ff80800009827e6c x10: 0000000000000000 x9 : ffff800009827e6c
x8 : ffff0000d284d040 x7 : 00000037000000c0 x6 : 0000000000000000
x5 : ffff000120743450 x4 : ffff80001cc57958 x3 : ffff80000830278c
x2 : 0000000000000001 x1 : 0000000000001000 x0 : 0000000000000200
Call trace:
udf_extend_file fs/udf/inode.c:649 [inline]
udf_setsize+0xcd4/0x1070 fs/udf/inode.c:1236
udf_setattr+0x280/0x414 fs/udf/file.c:277
notify_change+0xac4/0xd60 fs/attr.c:488
do_truncate+0x1c0/0x28c fs/open.c:65
do_sys_ftruncate+0x288/0x31c fs/open.c:193
__do_sys_ftruncate fs/open.c:204 [inline]
__se_sys_ftruncate fs/open.c:202 [inline]
__arm64_sys_ftruncate+0x60/0x74 fs/open.c:202
__invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 66
hardirqs last enabled at (65): [<ffff8000083c3f0c>] seqcount_lockdep_reader_access+0x208/0x2cc include/linux/seqlock.h:105
hardirqs last disabled at (66): [<ffff80001193cce8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387
softirqs last enabled at (8): [<ffff800008030068>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (6): [<ffff800008030034>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 52bb30ce975cd314 ]---
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