netlink: 36 bytes leftover after parsing attributes in process `syz-executor.1'. SELinux: Context system_u:object_r:sshd_exec_t:s0 is not valid (left unmapped). ================================================================== BUG: KCSAN: data-race in data_push_tail / number write to 0xffffffff883f7546 of 1 bytes by task 29 on cpu 1: number+0x85f/0xa90 lib/vsprintf.c:564 vsnprintf+0xa44/0xe30 lib/vsprintf.c:2890 vscnprintf+0x42/0x90 lib/vsprintf.c:2930 printk_sprint+0x30/0x2d0 kernel/printk/printk.c:2165 vprintk_store+0x570/0x810 kernel/printk/printk.c:2279 vprintk_emit+0x10c/0x5e0 kernel/printk/printk.c:2329 vprintk_default+0x26/0x30 kernel/printk/printk.c:2363 vprintk+0x75/0x80 kernel/printk/printk_safe.c:45 _printk+0x7a/0xa0 kernel/printk/printk.c:2373 kauditd_printk_skb kernel/audit.c:546 [inline] kauditd_hold_skb+0x1a1/0x1b0 kernel/audit.c:581 kauditd_send_queue+0x288/0x2e0 kernel/audit.c:766 kauditd_thread+0x42a/0x650 kernel/audit.c:890 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read to 0xffffffff883f7540 of 8 bytes by task 28241 on cpu 0: data_make_reusable kernel/printk/printk_ringbuffer.c:594 [inline] data_push_tail+0x102/0x430 kernel/printk/printk_ringbuffer.c:679 data_alloc+0xbe/0x2c0 kernel/printk/printk_ringbuffer.c:1054 prb_reserve+0x85e/0xb60 kernel/printk/printk_ringbuffer.c:1669 vprintk_store+0x53f/0x810 kernel/printk/printk.c:2269 vprintk_emit+0x10c/0x5e0 kernel/printk/printk.c:2329 vprintk_default+0x26/0x30 kernel/printk/printk.c:2363 vprintk+0x75/0x80 kernel/printk/printk_safe.c:45 _printk+0x7a/0xa0 kernel/printk/printk.c:2373 sidtab_context_to_sid+0x5c3/0x5e0 security/selinux/ss/sidtab.c:348 security_context_to_sid_core+0x299/0x3b0 security/selinux/ss/services.c:1559 security_context_to_sid_force+0x30/0x40 security/selinux/ss/services.c:1632 selinux_inode_setxattr+0x58a/0x780 security/selinux/hooks.c:3249 security_inode_setxattr+0xa2/0x120 security/security.c:2297 __vfs_setxattr_locked+0x88/0x1d0 fs/xattr.c:286 vfs_setxattr+0x140/0x290 fs/xattr.c:321 do_setxattr fs/xattr.c:629 [inline] setxattr+0x1bc/0x230 fs/xattr.c:652 __do_sys_fsetxattr fs/xattr.c:708 [inline] __se_sys_fsetxattr+0x118/0x180 fs/xattr.c:697 __x64_sys_fsetxattr+0x67/0x80 fs/xattr.c:697 x64_sys_call+0x266d/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:191 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x000000010000128b -> 0x00003d6570797420 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 28241 Comm: syz-executor.1 Tainted: G W 6.9.0-syzkaller-10713-g2a8120d7b482 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 ==================================================================