IPVS: ftp: loaded support on port[0] = 21
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BUG: KCSAN: data-race in mm_update_next_owner / ns_capable_common

read to 0xffff88805b699064 of 4 bytes by task 16925 on cpu 1:
 mm_update_next_owner+0x373/0x5a0 kernel/exit.c:389
 exit_mm kernel/exit.c:484 [inline]
 do_exit+0x4a4/0x18c0 kernel/exit.c:784
 do_group_exit+0xb4/0x1c0 kernel/exit.c:895
 __do_sys_exit_group kernel/exit.c:906 [inline]
 __se_sys_exit_group kernel/exit.c:904 [inline]
 __x64_sys_exit_group+0x2e/0x30 kernel/exit.c:904
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

write to 0xffff88805b699064 of 4 bytes by task 16924 on cpu 0:
 ns_capable_common+0x9f/0xc0 kernel/capability.c:377
 ns_capable_noaudit+0x2c/0x40 kernel/capability.c:414
 net_ctl_permissions+0x43/0xb0 net/sysctl_net.c:48
 sysctl_perm+0x54/0x120 fs/proc/proc_sysctl.c:456
 proc_sys_permission+0xda/0x140 fs/proc/proc_sysctl.c:829
 do_inode_permission fs/namei.c:384 [inline]
 inode_permission+0x241/0x370 fs/namei.c:449
 may_open.isra.0+0x144/0x250 fs/namei.c:2980
 do_last fs/namei.c:3416 [inline]
 path_openat+0xf31/0x3580 fs/namei.c:3537
 do_filp_open+0x11e/0x1b0 fs/namei.c:3567
 do_sys_open+0x3b3/0x4f0 fs/open.c:1097
 __do_sys_open fs/open.c:1115 [inline]
 __se_sys_open fs/open.c:1110 [inline]
 __x64_sys_open+0x55/0x70 fs/open.c:1110
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 16924 Comm: syz-executor.3 Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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