syzbot

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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+0x47c/0x670 fs/inode.c:302
Write of size 4 at addr 0000000b00000000 by task syz-executor260/5827

CPU: 1 UID: 0 PID: 5827 Comm: syz-executor260 Not tainted 6.12.0-rc5-syzkaller-00047-g4236f913808c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 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+0x47c/0x670 fs/inode.c:302
 destroy_inode fs/inode.c:313 [inline]
 evict+0x78b/0x9b0 fs/inode.c:756
 dispose_list fs/inode.c:774 [inline]
 evict_inodes+0x6f6/0x790 fs/inode.c:828
 generic_shutdown_super+0xa0/0x2d0 fs/super.c:627
 kill_block_super+0x44/0x90 fs/super.c:1696
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa2f/0x28e0 kernel/exit.c:939
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 __do_sys_exit_group kernel/exit.c:1099 [inline]
 __se_sys_exit_group kernel/exit.c:1097 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097
 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9168a76009
Code: Unable to access opcode bytes at 0x7f9168a75fdf.
RSP: 002b:00007fff80687e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f9168a76009
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f9168af8370 R08: ffffffffffffffb8 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000246 R12: 00007f9168af8370
R13: 0000000000000000 R14: 00007f9168af90e0 R15: 00007f9168a43d70
 </TASK>
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