================================================================== BUG: KASAN: wild-memory-access in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: wild-memory-access in test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:71 [inline] BUG: KASAN: wild-memory-access in __fscache_relinquish_cookie+0x2a/0x620 fs/netfs/fscache_cookie.c:977 Write of size 8 at addr adacafaea9a8ac9a by task syz-executor.0/7579 CPU: 1 PID: 7579 Comm: syz-executor.0 Not tainted 6.8.0-rc1-next-20240129-syzkaller-g596764183be8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 kasan_report+0xd9/0x110 mm/kasan/report.c:601 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0xef/0x1a0 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] test_and_set_bit include/asm-generic/bitops/instrumented-atomic.h:71 [inline] __fscache_relinquish_cookie+0x2a/0x620 fs/netfs/fscache_cookie.c:977 fscache_relinquish_cookie include/linux/fscache.h:308 [inline] v9fs_evict_inode+0x102/0x150 fs/9p/vfs_inode.c:356 evict+0x2ed/0x6c0 fs/inode.c:666 iput_final fs/inode.c:1740 [inline] iput.part.0+0x573/0x7c0 fs/inode.c:1766 iput+0x5c/0x80 fs/inode.c:1756 v9fs_fid_iget_dotl+0x1b4/0x260 fs/9p/vfs_inode_dotl.c:96 v9fs_get_inode_from_fid fs/9p/v9fs.h:230 [inline] v9fs_mount+0x515/0xa90 fs/9p/vfs_super.c:142 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8f/0x380 fs/super.c:1784 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __x64_sys_mount+0x297/0x320 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f8d3ba79a29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8d3cc570c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f8d3bb8bf80 RCX: 00007f8d3ba79a29 RDX: 0000000020000140 RSI: 0000000020000200 RDI: 0000000000000000 RBP: 00007f8d3bad5170 R08: 00000000200004c0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8d3bb8bf80 R15: 00007ffcbb7da3a8 ==================================================================