syzbot

BUG: spinlock bad magic on CPU#0, jfsCommit/239
 lock: 0xffff0000e1c84168, .magic: ffff8000, .owner: @IΘα/0, .owner_cpu: 512
CPU: 0 PID: 239 Comm: jfsCommit Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 spin_dump kernel/locking/spinlock_debug.c:69 [inline]
 spin_bug+0x124/0x240 kernel/locking/spinlock_debug.c:77
 debug_spin_lock_before kernel/locking/spinlock_debug.c:85 [inline]
 do_raw_spin_lock+0x200/0x35c kernel/locking/spinlock_debug.c:114
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline]
 _raw_spin_lock_irqsave+0xcc/0x14c kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0xe8/0x1a0 kernel/sched/wait.c:157
 unlock_metapage fs/jfs/jfs_metapage.c:37 [inline]
 release_metapage+0x17c/0x918 fs/jfs/jfs_metapage.c:737
 xtTruncate+0xc90/0x2b10
 jfs_free_zero_link+0x374/0x598 fs/jfs/namei.c:758
 jfs_evict_inode+0x308/0x408 fs/jfs/inode.c:153
 evict+0x418/0x894 fs/inode.c:622
 iput_final fs/inode.c:1740 [inline]
 iput+0x744/0x824 fs/inode.c:1766
 txUpdateMap+0x76c/0x914 fs/jfs/jfs_txnmgr.c:2401
 txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline]
 jfs_lazycommit+0x3b0/0xa40 fs/jfs/jfs_txnmgr.c:2766
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
================================================================================
UBSAN: array-index-out-of-bounds in kernel/locking/qspinlock.c:130:9
index 1148 is out of range for type 'unsigned long[8]'
CPU: 0 PID: 239 Comm: jfsCommit Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 dump_stack+0x1c/0x58 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0x108/0x15c lib/ubsan.c:282
 decode_tail kernel/locking/qspinlock.c:130 [inline]
 queued_spin_lock_slowpath+0x854/0x938 kernel/locking/qspinlock.c:468
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x334/0x35c kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline]
 _raw_spin_lock_irqsave+0xcc/0x14c kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0xe8/0x1a0 kernel/sched/wait.c:157
 unlock_metapage fs/jfs/jfs_metapage.c:37 [inline]
 release_metapage+0x17c/0x918 fs/jfs/jfs_metapage.c:737
 xtTruncate+0xc90/0x2b10
 jfs_free_zero_link+0x374/0x598 fs/jfs/namei.c:758
 jfs_evict_inode+0x308/0x408 fs/jfs/inode.c:153
 evict+0x418/0x894 fs/inode.c:622
 iput_final fs/inode.c:1740 [inline]
 iput+0x744/0x824 fs/inode.c:1766
 txUpdateMap+0x76c/0x914 fs/jfs/jfs_txnmgr.c:2401
 txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline]
 jfs_lazycommit+0x3b0/0xa40 fs/jfs/jfs_txnmgr.c:2766
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
================================================================================
Unable to handle kernel paging request at virtual address ffff800014a26710
Mem abort info:
  ESR = 0x0000000096000047
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x07: level 3 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000047
  CM = 0, WnR = 1
swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001ae2ee000
[ffff800014a26710] pgd=100000023ffff003, p4d=100000023ffff003, pud=100000023fffe003, pmd=100000023fff9003, pte=0000000000000000
Internal error: Oops: 0000000096000047 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 239 Comm: jfsCommit Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_spin_lock_slowpath+0x36c/0x938 kernel/locking/qspinlock.c:471
lr : decode_tail kernel/locking/qspinlock.c:130 [inline]
lr : queued_spin_lock_slowpath+0x854/0x938 kernel/locking/qspinlock.c:468
sp : ffff80001dfc7200
x29: ffff80001dfc72a0 x28: 1ffff00003bf8e4c x27: 0000000000000000
x26: dfff800000000000 x25: ffff700003bf8e44 x24: 0000000000040000
x23: ffff800014a26710 x22: ffff0001b41a1708 x21: ffff0001b41a1700
x20: ffff800014a26710 x19: ffff0000e1c84168 x18: 0000000000000002
x17: 0000000000000000 x16: ffff800011ac23e0 x15: 00000000ffffffff
x14: ffff0000c71a1b40 x13: 0000000000000001 x12: ffff700002e22164
x11: 0000000000000001 x10: ffff800014a26700 x9 : 0000000000000001
x8 : 0000000000000000 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001dfc68f8 x4 : ffff800014b9fae0 x3 : ffff80000819c844
x2 : 0000000000000001 x1 : 0000000000000004 x0 : ffff0001b41a1708
Call trace:
 queued_spin_lock_slowpath+0x36c/0x938 kernel/locking/qspinlock.c:474
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x334/0x35c kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:117 [inline]
 _raw_spin_lock_irqsave+0xcc/0x14c kernel/locking/spinlock.c:162
 __wake_up_common_lock kernel/sched/wait.c:137 [inline]
 __wake_up+0xe8/0x1a0 kernel/sched/wait.c:157
 unlock_metapage fs/jfs/jfs_metapage.c:37 [inline]
 release_metapage+0x17c/0x918 fs/jfs/jfs_metapage.c:737
 xtTruncate+0xc90/0x2b10
 jfs_free_zero_link+0x374/0x598 fs/jfs/namei.c:758
 jfs_evict_inode+0x308/0x408 fs/jfs/inode.c:153
 evict+0x418/0x894 fs/inode.c:622
 iput_final fs/inode.c:1740 [inline]
 iput+0x744/0x824 fs/inode.c:1766
 txUpdateMap+0x76c/0x914 fs/jfs/jfs_txnmgr.c:2401
 txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline]
 jfs_lazycommit+0x3b0/0xa40 fs/jfs/jfs_txnmgr.c:2766
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Code: aa1703e0 9417473e aa1603e0 52800081 (f90002f5) 
---[ end trace 9daeef454817c160 ]---
----------------
Code disassembly (best guess):
   0:	aa1703e0 	mov	x0, x23
   4:	9417473e 	bl	0x5d1cfc
   8:	aa1603e0 	mov	x0, x22
   c:	52800081 	mov	w1, #0x4                   	// #4
* 10:	f90002f5 	str	x21, [x23] <-- trapping instruction