================================================================== 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:264 [inline] BUG: KASAN: user-memory-access in __refcount_dec_and_test include/linux/refcount.h:307 [inline] BUG: KASAN: user-memory-access in refcount_dec_and_test include/linux/refcount.h:325 [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+0x479/0x650 fs/inode.c:298 Write of size 4 at addr 0000000b00000000 by task syz-executor.0/12944 CPU: 1 PID: 12944 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller-00232-gddb4c3f25b7b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_report+0xe8/0x550 mm/kasan/report.c:491 kasan_report+0x143/0x180 mm/kasan/report.c:601 kasan_check_range+0x282/0x290 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:264 [inline] __refcount_dec_and_test include/linux/refcount.h:307 [inline] refcount_dec_and_test include/linux/refcount.h:325 [inline] posix_acl_release include/linux/posix_acl.h:57 [inline] __destroy_inode+0x479/0x650 fs/inode.c:298 destroy_inode fs/inode.c:309 [inline] evict+0x521/0x630 fs/inode.c:682 dispose_list fs/inode.c:700 [inline] evict_inodes+0x5f9/0x690 fs/inode.c:750 generic_shutdown_super+0x9d/0x2d0 fs/super.c:626 kill_block_super+0x44/0x90 fs/super.c:1675 deactivate_locked_super+0xc4/0x130 fs/super.c:472 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24f/0x310 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f668d87efd7 Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffcd27f09d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f668d87efd7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcd27f0a90 RBP: 00007ffcd27f0a90 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcd27f1b50 R13: 00007f668d8c83b9 R14: 00000000000837f4 R15: 000000000000000f ==================================================================