================================================================== BUG: KASAN: user-memory-access in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: user-memory-access in atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:167 [inline] BUG: KASAN: user-memory-access in __refcount_sub_and_test include/linux/refcount.h:272 [inline] BUG: KASAN: user-memory-access in __refcount_dec_and_test include/linux/refcount.h:315 [inline] BUG: KASAN: user-memory-access in refcount_dec_and_test include/linux/refcount.h:333 [inline] BUG: KASAN: user-memory-access in posix_acl_release include/linux/posix_acl.h:57 [inline] BUG: KASAN: user-memory-access in __destroy_inode+0x427/0x5e0 fs/inode.c:273 Write of size 4 at addr 0000000b00000000 by task syz-executor/3940 CPU: 0 PID: 3940 Comm: syz-executor Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 __kasan_report mm/kasan/report.c:438 [inline] kasan_report+0x161/0x1c0 mm/kasan/report.c:451 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:167 [inline] __refcount_sub_and_test include/linux/refcount.h:272 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] posix_acl_release include/linux/posix_acl.h:57 [inline] __destroy_inode+0x427/0x5e0 fs/inode.c:273 destroy_inode fs/inode.c:284 [inline] evict+0x7d6/0x930 fs/inode.c:637 dispose_list fs/inode.c:655 [inline] evict_inodes+0x601/0x6a0 fs/inode.c:705 generic_shutdown_super+0x99/0x2c0 fs/super.c:454 kill_block_super+0x7a/0xe0 fs/super.c:1425 deactivate_locked_super+0xa0/0x110 fs/super.c:335 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143 task_work_run+0x129/0x1a0 kernel/task_work.c:188 exit_task_work include/linux/task_work.h:33 [inline] do_exit+0x6a3/0x2480 kernel/exit.c:874 do_group_exit+0x144/0x310 kernel/exit.c:996 __do_sys_exit_group kernel/exit.c:1007 [inline] __se_sys_exit_group kernel/exit.c:1005 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1005 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f0d43e57ff9 Code: Unable to access opcode bytes at RIP 0x7f0d43e57fcf. RSP: 002b:00007ffec82d8748 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f0d43eca1a6 RCX: 00007f0d43e57ff9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 0000000000000010 R08: 00007ffec82d64e6 R09: 00007ffec82d9a00 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffec82d9a00 R13: 00007f0d43eca134 R14: 000055557403b4a8 R15: 00007ffec82daac0 ==================================================================