================================================================== BUG: KCSAN: data-race in touch_atime / touch_atime write to 0xffff88815fb66a00 of 8 bytes by task 10660 on cpu 0: inode_set_atime_to_ts include/linux/fs.h:1564 [inline] inode_update_timestamps fs/inode.c:1878 [inline] generic_update_time fs/inode.c:1900 [inline] inode_update_time fs/inode.c:1920 [inline] touch_atime+0x1f3/0x350 fs/inode.c:1992 do_readlinkat+0x164/0x210 fs/stat.c:510 __do_sys_readlink fs/stat.c:532 [inline] __se_sys_readlink fs/stat.c:529 [inline] __x64_sys_readlink+0x47/0x60 fs/stat.c:529 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 read to 0xffff88815fb66a00 of 8 bytes by task 10544 on cpu 1: inode_get_atime include/linux/fs.h:1558 [inline] inode_update_timestamps fs/inode.c:1875 [inline] generic_update_time fs/inode.c:1900 [inline] inode_update_time fs/inode.c:1920 [inline] touch_atime+0x1a0/0x350 fs/inode.c:1992 do_readlinkat+0x164/0x210 fs/stat.c:510 __do_sys_readlink fs/stat.c:532 [inline] __se_sys_readlink fs/stat.c:529 [inline] __x64_sys_readlink+0x47/0x60 fs/stat.c:529 do_syscall_64+0xd3/0x1d0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 value changed: 0x000000003653b982 -> 0x0000000036ec5002 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 10544 Comm: udevd Not tainted 6.8.0-syzkaller-13161-gbfa8f18691ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 ================================================================== Buffer I/O error on dev loop2, logical block 0, async page read blk_print_req_error: 22 callbacks suppressed I/O error, dev loop2, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0 Buffer I/O error on dev loop4, logical block 0, async page read