netdevsim netdevsim1 netdevsim0: renamed from eth0
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BUG: KCSAN: data-race in console_flush_all / console_flush_all

write to 0xffffffff86a25dd8 of 8 bytes by task 11303 on cpu 0:
 console_emit_next_record kernel/printk/printk.c:3090 [inline]
 console_flush_one_record kernel/printk/printk.c:3215 [inline]
 console_flush_all+0x38a/0x6c0 kernel/printk/printk.c:3289
 __console_flush_and_unlock kernel/printk/printk.c:3319 [inline]
 console_unlock+0x97/0x270 kernel/printk/printk.c:3359
 vprintk_emit+0x39f/0x5c0 kernel/printk/printk.c:2426
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2441
 vprintk+0x1d/0x30 kernel/printk/printk_safe.c:82
 _printk+0x79/0xa0 kernel/printk/printk.c:2451
 isofs_read_inode fs/isofs/inode.c:1376 [inline]
 __isofs_iget+0xfb0/0x1100 fs/isofs/inode.c:1524
 isofs_iget fs/isofs/isofs.h:135 [inline]
 isofs_get_blocks+0x185/0x490 fs/isofs/inode.c:1069
 isofs_get_block fs/isofs/inode.c:1122 [inline]
 isofs_bmap fs/isofs/inode.c:1133 [inline]
 isofs_bread+0x5b/0x100 fs/isofs/inode.c:1141
 isofs_find_entry fs/isofs/namei.c:59 [inline]
 isofs_lookup+0x1a8/0x930 fs/isofs/namei.c:165
 __lookup_slow+0x193/0x250 fs/namei.c:1858
 lookup_slow+0x3c/0x60 fs/namei.c:1875
 walk_component fs/namei.c:2221 [inline]
 lookup_last fs/namei.c:2722 [inline]
 path_lookupat+0x2f7/0x500 fs/namei.c:2746
 filename_lookup+0x147/0x340 fs/namei.c:2775
 filename_removexattr fs/xattr.c:1047 [inline]
 path_removexattrat+0x148/0x570 fs/xattr.c:1088
 __do_sys_removexattr fs/xattr.c:1100 [inline]
 __se_sys_removexattr fs/xattr.c:1097 [inline]
 __x64_sys_removexattr+0x38/0x50 fs/xattr.c:1097
 x64_sys_call+0x1d14/0x3000 arch/x86/include/generated/asm/syscalls_64.h:198
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xca/0x2b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff86a25dd8 of 8 bytes by task 11199 on cpu 1:
 console_flush_one_record kernel/printk/printk.c:3216 [inline]
 console_flush_all+0x549/0x6c0 kernel/printk/printk.c:3289
 __console_flush_and_unlock kernel/printk/printk.c:3319 [inline]
 console_unlock+0x97/0x270 kernel/printk/printk.c:3359
 vprintk_emit+0x39f/0x5c0 kernel/printk/printk.c:2426
 dev_vprintk_emit+0x242/0x2a0 drivers/base/core.c:4914
 dev_printk_emit+0x84/0xb0 drivers/base/core.c:4925
 __netdev_printk+0x34b/0x370 net/core/dev.c:12903
 netdev_info+0x9b/0xd0 net/core/dev.c:12958
 netif_change_name+0x6af/0x720 net/core/dev.c:1466
 do_setlink+0x710/0x2780 net/core/rtnetlink.c:3138
 rtnl_changelink net/core/rtnetlink.c:3776 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3935 [inline]
 rtnl_newlink+0xea4/0x1360 net/core/rtnetlink.c:4072
 rtnetlink_rcv_msg+0x5fe/0x6d0 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x123/0x220 net/netlink/af_netlink.c:2550
 rtnetlink_rcv+0x1c/0x30 net/core/rtnetlink.c:6985
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x5c0/0x690 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x58b/0x6b0 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg+0x145/0x180 net/socket.c:742
 __sys_sendto+0x268/0x330 net/socket.c:2206
 __do_sys_sendto net/socket.c:2213 [inline]
 __se_sys_sendto net/socket.c:2209 [inline]
 __x64_sys_sendto+0x76/0x90 net/socket.c:2209
 x64_sys_call+0x29a7/0x3000 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xca/0x2b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x0000000000001b5b -> 0x0000000000001b5c

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 11199 Comm: syz-executor Tainted: G        W           syzkaller #0 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
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netdevsim netdevsim1 netdevsim1: renamed from eth1