EXT4-fs: Ignoring removed orlov option
EXT4-fs: Ignoring removed nomblk_io_submit option
==================================================================
BUG: KCSAN: data-race in data_alloc / prb_reserve

write to 0xffffffff86083cb8 of 8 bytes by task 21960 on cpu 1:
 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:2266
 vprintk_emit+0x10c/0x5e0 kernel/printk/printk.c:2326
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2360
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:45
 _printk+0x7a/0xa0 kernel/printk/printk.c:2370
 __netdev_printk+0x2d1/0x3e0 net/core/dev.c:11633
 netdev_info+0x99/0xc0 net/core/dev.c:11680
 __dev_set_promiscuity+0x165/0x340 net/core/dev.c:8570
 dev_set_promiscuity+0x3b/0x90 net/core/dev.c:8608
 br_port_set_promisc net/bridge/br_if.c:108 [inline]
 br_manage_promisc+0xf4/0x360 net/bridge/br_if.c:157
 nbp_update_port_count+0xbc/0xd0 net/bridge/br_if.c:242
 br_add_if+0x4f8/0xa50 net/bridge/br_if.c:640
 br_add_slave+0x2c/0x40 net/bridge/br_device.c:373
 do_set_master net/core/rtnetlink.c:2701 [inline]
 do_setlink+0x968/0x2490 net/core/rtnetlink.c:2907
 __rtnl_newlink net/core/rtnetlink.c:3696 [inline]
 rtnl_newlink+0x11a1/0x1690 net/core/rtnetlink.c:3743
 rtnetlink_rcv_msg+0x85e/0x910 net/core/rtnetlink.c:6635
 netlink_rcv_skb+0x12c/0x230 net/netlink/af_netlink.c:2564
 rtnetlink_rcv+0x1c/0x30 net/core/rtnetlink.c:6653
 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
 netlink_unicast+0x58d/0x660 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x5ca/0x6e0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x140/0x180 net/socket.c:745
 __sys_sendto+0x1e5/0x260 net/socket.c:2192
 __do_sys_sendto net/socket.c:2204 [inline]
 __se_sys_sendto net/socket.c:2200 [inline]
 __x64_sys_sendto+0x78/0x90 net/socket.c:2200
 x64_sys_call+0x16d7/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:45
 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

read to 0xffffffff86083cb8 of 8 bytes by task 22046 on cpu 0:
 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:2266
 vprintk_emit+0x10c/0x5e0 kernel/printk/printk.c:2326
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2360
 vprintk+0x75/0x80 kernel/printk/printk_safe.c:45
 _printk+0x7a/0xa0 kernel/printk/printk.c:2370
 __ext4_error+0x221/0x310 fs/ext4/super.c:822
 ext4_orphan_get+0xdc/0x3e0 fs/ext4/ialloc.c:1420
 ext4_orphan_cleanup+0x5df/0x9e0 fs/ext4/orphan.c:467
 __ext4_fill_super fs/ext4/super.c:5553 [inline]
 ext4_fill_super+0x367a/0x39e0 fs/ext4/super.c:5676
 get_tree_bdev+0x253/0x2e0 fs/super.c:1615
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5708
 vfs_get_tree+0x56/0x1d0 fs/super.c:1780
 do_new_mount+0x227/0x690 fs/namespace.c:3352
 path_mount+0x49b/0xb30 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3875
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3875
 x64_sys_call+0x25c9/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:166
 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: 0x0000000000036668 -> 0x00000000000e4570

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 22046 Comm: syz-executor.2 Not tainted 6.10.0-rc4-syzkaller-00033-g14d7c92f8df9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
==================================================================
EXT4-fs error (device loop2): ext4_orphan_get:1420: comm syz-executor.2: bad orphan inode 1056964608
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.