audit: type=1326 audit(1745538035.804:5042): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538035.804:5043): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
==================================================================
BUG: KCSAN: data-race in console_flush_all / console_flush_all

write to 0xffffffff86a1dcf8 of 8 bytes by task 10040 on cpu 1:
 console_emit_next_record kernel/printk/printk.c:3099 [inline]
 console_flush_all+0x3b7/0x7a0 kernel/printk/printk.c:3226
 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
 console_unlock+0xf4/0x350 kernel/printk/printk.c:3325
 vprintk_emit+0x470/0x6c0 kernel/printk/printk.c:2450
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2465
 vprintk+0x1d/0x30 kernel/printk/printk_safe.c:82
 _printk+0x7f/0xb0 kernel/printk/printk.c:2475
 isofs_fill_super+0x12a7/0x12c0 fs/isofs/inode.c:661
 get_tree_bdev_flags+0x2b4/0x330 fs/super.c:1636
 get_tree_bdev+0x1f/0x30 fs/super.c:1659
 isofs_get_tree+0x1c/0x30 fs/isofs/inode.c:1523
 vfs_get_tree+0x56/0x1e0 fs/super.c:1759
 do_new_mount+0x246/0x6b0 fs/namespace.c:3881
 path_mount+0x49b/0xb30 fs/namespace.c:4208
 do_mount fs/namespace.c:4221 [inline]
 __do_sys_mount fs/namespace.c:4432 [inline]
 __se_sys_mount+0x28f/0x2e0 fs/namespace.c:4409
 __x64_sys_mount+0x67/0x80 fs/namespace.c:4409
 x64_sys_call+0xd11/0x2e10 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0x1a0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff86a1dcf8 of 8 bytes by task 29 on cpu 0:
 console_flush_all+0x5a3/0x7a0 kernel/printk/printk.c:3227
 __console_flush_and_unlock kernel/printk/printk.c:3285 [inline]
 console_unlock+0xf4/0x350 kernel/printk/printk.c:3325
 vprintk_emit+0x470/0x6c0 kernel/printk/printk.c:2450
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2465
 vprintk+0x1d/0x30 kernel/printk/printk_safe.c:82
 _printk+0x7f/0xb0 kernel/printk/printk.c:2475
 kauditd_printk_skb kernel/audit.c:546 [inline]
 kauditd_hold_skb+0x1a3/0x1b0 kernel/audit.c:581
 kauditd_send_queue+0x288/0x2e0 kernel/audit.c:766
 kauditd_thread+0x432/0x640 kernel/audit.c:890
 kthread+0x4b7/0x540 kernel/kthread.c:464
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

value changed: 0x0000000000001509 -> 0x000000000000150a

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 29 Comm: kauditd Not tainted 6.15.0-rc3-syzkaller-00076-ge72e9e693307 #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================
audit: type=1326 audit(1745538035.804:5044): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=298 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538035.804:5045): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538035.804:5046): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=321 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538036.084:5047): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538036.094:5048): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538036.094:5049): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=186 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538036.094:5050): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=202 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000
audit: type=1326 audit(1745538036.104:5051): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=root:sysadm_r:sysadm_t pid=10036 comm="syz.0.1596" exe="/root/syz-executor" sig=0 arch=c000003e syscall=222 compat=0 ip=0x7f0a03cae969 code=0x7ffc0000