SELinux: inode_doinit_use_xattr:  getxattr returned 117 for dev=loop4 ino=15
EXT4-fs error (device loop4): ext4_xattr_block_get:596: inode #15: comm syz.4.5526: corrupted xattr block 19: bad e_name length
SELinux: inode_doinit_use_xattr:  getxattr returned 117 for dev=loop4 ino=15
==================================================================
BUG: KCSAN: data-race in data_alloc / prb_reserve

write to 0xffffffff862669b8 of 8 bytes by task 29 on cpu 0:
 data_alloc+0x291/0x2c0 kernel/printk/printk_ringbuffer.c:1096
 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
 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+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 0xffffffff862669b8 of 8 bytes by task 20309 on cpu 1:
 desc_read kernel/printk/printk_ringbuffer.c:482 [inline]
 desc_push_tail kernel/printk/printk_ringbuffer.c:778 [inline]
 desc_reserve kernel/printk/printk_ringbuffer.c:924 [inline]
 prb_reserve+0x235/0xb60 kernel/printk/printk_ringbuffer.c:1619
 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
 __ext4_error_inode+0x2da/0x400 fs/ext4/super.c:853
 check_xattrs+0x244/0x780 fs/ext4/xattr.c:289
 __ext4_xattr_check_block fs/ext4/xattr.c:303 [inline]
 ext4_xattr_block_get fs/ext4/xattr.c:596 [inline]
 ext4_xattr_get+0x1e3/0x580 fs/ext4/xattr.c:714
 ext4_xattr_security_get+0x32/0x40 fs/ext4/xattr_security.c:20
 __vfs_getxattr+0x29f/0x2b0 fs/xattr.c:423
 inode_doinit_use_xattr+0x7a/0x2b0 security/selinux/hooks.c:1361
 inode_doinit_with_dentry+0x5e2/0x840 security/selinux/hooks.c:1486
 __inode_security_revalidate security/selinux/hooks.c:295 [inline]
 inode_security security/selinux/hooks.c:320 [inline]
 selinux_file_open+0x101/0x3b0 security/selinux/hooks.c:3969
 security_file_open+0x3a/0x70 security/security.c:2988
 do_dentry_open+0x22e/0xa50 fs/open.c:946
 vfs_open+0x3b/0x1f0 fs/open.c:1089
 do_open fs/namei.c:3727 [inline]
 path_openat+0x1a26/0x1f10 fs/namei.c:3886
 do_filp_open+0xf7/0x200 fs/namei.c:3913
 do_sys_openat2+0xab/0x120 fs/open.c:1416
 do_sys_open fs/open.c:1431 [inline]
 __do_sys_openat fs/open.c:1447 [inline]
 __se_sys_openat fs/open.c:1442 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1442
 x64_sys_call+0x1025/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0xfffffffffffca8e8 -> 0x000000000007f6b8

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 20309 Comm: syz.4.5526 Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
==================================================================
EXT4-fs error (device loop4): ext4_xattr_block_get:596: inode #15: comm syz.4.5526: corrupted xattr block 19: bad e_name length
SELinux: inode_doinit_use_xattr:  getxattr returned 117 for dev=loop4 ino=15
syz_tun (unregistering): left promiscuous mode
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.