jfs_dirty_inode called on read-only volume
Is remount racy?
jfs_dirty_inode called on read-only volume
Is remount racy?
jfs_dirty_inode called on read-only volume
Is remount racy?
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 6185 Comm: syz-executor426 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:291
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:298
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 dump_stack+0x1c/0x28 lib/dump_stack.c:113
 assign_lock_key+0x274/0x2a8 kernel/locking/lockdep.c:976
 register_lock_class+0x144/0x6ac kernel/locking/lockdep.c:1289
 __lock_acquire+0x184/0x763c kernel/locking/lockdep.c:5014
 lock_acquire+0x23c/0x71c kernel/locking/lockdep.c:5754
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:105 [inline]
 __wake_up+0x38/0x1b0 kernel/sched/wait.c:127
 txEnd+0xa0/0x558 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x28c/0xa04 fs/jfs/namei.c:159
 lookup_open fs/namei.c:3500 [inline]
 open_last_lookups fs/namei.c:3569 [inline]
 path_openat+0xfb4/0x2830 fs/namei.c:3799
 do_filp_open+0x1bc/0x3cc fs/namei.c:3829
 do_sys_openat2+0x124/0x1b8 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_openat fs/open.c:1435 [inline]
 __se_sys_openat fs/open.c:1430 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1430
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Unable to handle kernel paging request at virtual address dfff800000000000
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000000] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 6185 Comm: syz-executor426 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __wake_up_common_lock kernel/sched/wait.c:106 [inline]
pc : __wake_up+0xd4/0x1b0 kernel/sched/wait.c:127
lr : __wake_up_common_lock kernel/sched/wait.c:105 [inline]
lr : __wake_up+0x38/0x1b0 kernel/sched/wait.c:127
sp : ffff800097a87410
x29: ffff800097a87420 x28: dfff800000000000 x27: 0000000000000000
x26: ffff800097a876b0 x25: 0000000000000000 x24: ffff800096da9070
x23: dfff800000000000 x22: 0000000000000003 x21: 0000000000000000
x20: ffff800096da9030 x19: 0000000000000000 x18: ffff800097a87080
x17: 0000000000000000 x16: ffff80008033f264 x15: ffff700012f50e68
x14: 1ffff00012f50e68 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700012f50e68 x10: 1ffff00012f50e68 x9 : 0000000000000007
x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800097a865d8 x4 : ffff80008edb26c0 x3 : ffff80008033f394
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __wake_up_common_lock kernel/sched/wait.c:106 [inline]
 __wake_up+0xd4/0x1b0 kernel/sched/wait.c:127
 txEnd+0xa0/0x558 fs/jfs/jfs_txnmgr.c:504
 jfs_create+0x28c/0xa04 fs/jfs/namei.c:159
 lookup_open fs/namei.c:3500 [inline]
 open_last_lookups fs/namei.c:3569 [inline]
 path_openat+0xfb4/0x2830 fs/namei.c:3799
 do_filp_open+0x1bc/0x3cc fs/namei.c:3829
 do_sys_openat2+0x124/0x1b8 fs/open.c:1404
 do_sys_open fs/open.c:1419 [inline]
 __do_sys_openat fs/open.c:1435 [inline]
 __se_sys_openat fs/open.c:1430 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1430
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Code: aa1703f9 eb1802ff 540004a0 d343ff28 (387c6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1703f9 	mov	x25, x23
   4:	eb1802ff 	cmp	x23, x24
   8:	540004a0 	b.eq	0x9c  // b.none
   c:	d343ff28 	lsr	x8, x25, #3
* 10:	387c6908 	ldrb	w8, [x8, x28] <-- trapping instruction