------------[ cut here ]------------
WARNING: CPU: 1 PID: 21753 at include/linux/seqlock.h:271 __seqprop_assert include/linux/seqlock.h:271 [inline]
WARNING: CPU: 1 PID: 21753 at include/linux/seqlock.h:271 __seqprop_assert.constprop.0+0xf0/0x11c include/linux/seqlock.h:269
Modules linked in:
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 21753 Comm: udevd Not tainted 5.12.0-rc2-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<82740468>] (dump_backtrace) from [<827406dc>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252)
 r7:00000080 r6:60000093 r5:00000000 r4:8422a3c4
[<827406c4>] (show_stack) from [<82751b58>] (__dump_stack lib/dump_stack.c:79 [inline])
[<827406c4>] (show_stack) from [<82751b58>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120)
[<82751aa0>] (dump_stack) from [<82741270>] (panic+0x130/0x378 kernel/panic.c:231)
 r7:830209b4 r6:84069ea4 r5:00000000 r4:844350d0
[<82741140>] (panic) from [<80244924>] (__warn+0xb0/0x164 kernel/panic.c:605)
 r3:8404ec8c r2:00000000 r1:00000000 r0:830209b4
 r7:0000010f
[<80244874>] (__warn) from [<82741520>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:628)
 r7:81ea3540 r6:0000010f r5:83018e50 r4:00000000
[<827414bc>] (warn_slowpath_fmt) from [<81ea3540>] (__seqprop_assert include/linux/seqlock.h:271 [inline])
[<827414bc>] (warn_slowpath_fmt) from [<81ea3540>] (__seqprop_assert.constprop.0+0xf0/0x11c include/linux/seqlock.h:269)
 r8:ec798000 r7:81f89aa4 r6:00000001 r5:8af61540 r4:00000001
[<81ea3450>] (__seqprop_assert.constprop.0) from [<81ea5a9c>] (u64_stats_update_begin include/linux/u64_stats_sync.h:128 [inline])
[<81ea3450>] (__seqprop_assert.constprop.0) from [<81ea5a9c>] (__bpf_prog_run_save_cb include/linux/filter.h:727 [inline])
[<81ea3450>] (__seqprop_assert.constprop.0) from [<81ea5a9c>] (bpf_prog_run_save_cb include/linux/filter.h:741 [inline])
[<81ea3450>] (__seqprop_assert.constprop.0) from [<81ea5a9c>] (sk_filter_trim_cap+0x224/0x434 net/core/filter.c:149)
 r5:8af61540 r4:00000000
[<81ea5878>] (sk_filter_trim_cap) from [<81f89aa4>] (sk_filter include/linux/filter.h:867 [inline])
[<81ea5878>] (sk_filter_trim_cap) from [<81f89aa4>] (do_one_broadcast net/netlink/af_netlink.c:1468 [inline])
[<81ea5878>] (sk_filter_trim_cap) from [<81f89aa4>] (netlink_broadcast_filtered+0x27c/0x4fc net/netlink/af_netlink.c:1520)
 r10:00000001 r9:84c13e5c r8:00000000 r7:88c7d864 r6:8af61540 r5:8a3a7800
 r4:88c7d800
[<81f89828>] (netlink_broadcast_filtered) from [<81f8c588>] (netlink_broadcast net/netlink/af_netlink.c:1544 [inline])
[<81f89828>] (netlink_broadcast_filtered) from [<81f8c588>] (netlink_sendmsg+0x3d0/0x478 net/netlink/af_netlink.c:1925)
 r10:00000000 r9:00000002 r8:8a3a7800 r7:000000cf r6:8af61f00 r5:8affbf50
 r4:8ae1c200
[<81f8c1b8>] (netlink_sendmsg) from [<81e45978>] (sock_sendmsg_nosec net/socket.c:654 [inline])
[<81f8c1b8>] (netlink_sendmsg) from [<81e45978>] (sock_sendmsg+0x3c/0x4c net/socket.c:674)
 r10:00000000 r9:8affbdd4 r8:00000000 r7:8a5630c0 r6:00000000 r5:8a5630c0
 r4:8affbf50
[<81e4593c>] (sock_sendmsg) from [<81e46ef4>] (____sys_sendmsg+0x230/0x29c net/socket.c:2350)
 r5:00000040 r4:8affbf50
[<81e46cc4>] (____sys_sendmsg) from [<81e48ee0>] (___sys_sendmsg+0xac/0xe4 net/socket.c:2404)
 r10:00000128 r9:8affa000 r8:00000000 r7:00000000 r6:8a5630c0 r5:8affbf50
 r4:00000000
[<81e48e34>] (___sys_sendmsg) from [<81e490c8>] (__sys_sendmsg net/socket.c:2433 [inline])
[<81e48e34>] (___sys_sendmsg) from [<81e490c8>] (__do_sys_sendmsg net/socket.c:2442 [inline])
[<81e48e34>] (___sys_sendmsg) from [<81e490c8>] (sys_sendmsg+0x58/0xa0 net/socket.c:2440)
 r8:80200224 r7:00000128 r6:00000000 r5:7ed7d39c r4:8a5630c0
[<81e49070>] (sys_sendmsg) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64)
Exception stack(0x8affbfa8 to 0x8affbff0)
bfa0:                   00000000 00000000 0000000c 7ed7d39c 00000000 00000000
bfc0: 00000000 00000000 76f3c840 00000128 00000000 000000a7 7ed7d39c 000563f8
bfe0: 00056110 7ed7d360 00036cec 76c18f44
 r6:76f3c840 r5:00000000 r4:00000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Rebooting in 86400 seconds..