ERROR: (device loop1): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 7 ================================================================== BUG: KASAN: user-memory-access in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: user-memory-access in atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:400 [inline] BUG: KASAN: user-memory-access in __refcount_sub_and_test include/linux/refcount.h:389 [inline] BUG: KASAN: user-memory-access in __refcount_dec_and_test include/linux/refcount.h:432 [inline] BUG: KASAN: user-memory-access in refcount_dec_and_test include/linux/refcount.h:450 [inline] BUG: KASAN: user-memory-access in posix_acl_release include/linux/posix_acl.h:62 [inline] BUG: KASAN: user-memory-access in __destroy_inode+0x496/0x670 fs/inode.c:383 Write of size 4 at addr 0000000b00000000 by task syz-executor/11215 CPU: 1 UID: 0 PID: 11215 Comm: syz-executor Not tainted 6.15.0-rc6-syzkaller-00047-ge9565e23cd89 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 kasan_report+0x118/0x150 mm/kasan/report.c:634 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x29a/0x2b0 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:400 [inline] __refcount_sub_and_test include/linux/refcount.h:389 [inline] __refcount_dec_and_test include/linux/refcount.h:432 [inline] refcount_dec_and_test include/linux/refcount.h:450 [inline] posix_acl_release include/linux/posix_acl.h:62 [inline] __destroy_inode+0x496/0x670 fs/inode.c:383 destroy_inode fs/inode.c:394 [inline] evict+0x797/0x9c0 fs/inode.c:834 dispose_list fs/inode.c:852 [inline] evict_inodes+0x636/0x6c0 fs/inode.c:906 generic_shutdown_super+0x9a/0x2c0 fs/super.c:627 kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xb9/0x130 fs/super.c:473 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1431 task_work_run+0x1d1/0x260 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x8d6/0x2550 kernel/exit.c:953 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102 __do_sys_exit_group kernel/exit.c:1113 [inline] __se_sys_exit_group kernel/exit.c:1111 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111 x64_sys_call+0x21ba/0x21c0 arch/x86/include/generated/asm/syscalls_64.h:232 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: 0033:0x7fe5be38e969 Code: Unable to access opcode bytes at 0x7fe5be38e93f. RSP: 002b:00007ffc119bd708 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fe5be41090f RCX: 00007fe5be38e969 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000010 R08: 00007ffc119bb4a6 R09: 00007ffc119be9c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc119be9c0 R13: 00007fe5be41089d R14: 000055555ea764a8 R15: 00007ffc119bfa90 ==================================================================