syzbot

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WARNING: CPU: 0 PID: 20226 at include/linux/seqlock.h:271 __seqprop_assert include/linux/seqlock.h:271 [inline]
WARNING: CPU: 0 PID: 20226 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: 0 PID: 20226 Comm: udevd Not tainted 5.12.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<81802550>] (dump_backtrace) from [<818027c4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252)
 r7:00000080 r6:600d0093 r5:00000000 r4:82b58344
[<818027ac>] (show_stack) from [<81809e98>] (__dump_stack lib/dump_stack.c:79 [inline])
[<818027ac>] (show_stack) from [<81809e98>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120)
[<81809de0>] (dump_stack) from [<81803358>] (panic+0x130/0x378 kernel/panic.c:231)
 r7:81f48198 r6:82a390a4 r5:00000000 r4:82c6b0d0
[<81803228>] (panic) from [<802446f4>] (__warn+0xb0/0x164 kernel/panic.c:605)
 r3:82a2248c r2:00000000 r1:00000000 r0:81f48198
 r7:0000010f
[<80244644>] (__warn) from [<81803608>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:628)
 r7:8137f910 r6:0000010f r5:81f40624 r4:00000000
[<818035a4>] (warn_slowpath_fmt) from [<8137f910>] (__seqprop_assert include/linux/seqlock.h:271 [inline])
[<818035a4>] (warn_slowpath_fmt) from [<8137f910>] (__seqprop_assert.constprop.0+0xf0/0x11c include/linux/seqlock.h:269)
 r8:e44be000 r7:8146137c r6:00000001 r5:86e4d300 r4:00000001
[<8137f820>] (__seqprop_assert.constprop.0) from [<81381e6c>] (u64_stats_update_begin include/linux/u64_stats_sync.h:129 [inline])
[<8137f820>] (__seqprop_assert.constprop.0) from [<81381e6c>] (__bpf_prog_run_save_cb include/linux/filter.h:727 [inline])
[<8137f820>] (__seqprop_assert.constprop.0) from [<81381e6c>] (bpf_prog_run_save_cb include/linux/filter.h:741 [inline])
[<8137f820>] (__seqprop_assert.constprop.0) from [<81381e6c>] (sk_filter_trim_cap+0x224/0x434 net/core/filter.c:149)
 r5:86e4d300 r4:00000000
[<81381c48>] (sk_filter_trim_cap) from [<8146137c>] (sk_filter include/linux/filter.h:867 [inline])
[<81381c48>] (sk_filter_trim_cap) from [<8146137c>] (do_one_broadcast net/netlink/af_netlink.c:1468 [inline])
[<81381c48>] (sk_filter_trim_cap) from [<8146137c>] (netlink_broadcast_filtered+0x27c/0x4fc net/netlink/af_netlink.c:1520)
 r10:00000001 r9:833d6b1c r8:00000000 r7:855ce864 r6:86e4d300 r5:86715800
 r4:855ce800
[<81461100>] (netlink_broadcast_filtered) from [<81463e60>] (netlink_broadcast net/netlink/af_netlink.c:1544 [inline])
[<81461100>] (netlink_broadcast_filtered) from [<81463e60>] (netlink_sendmsg+0x3d0/0x478 net/netlink/af_netlink.c:1925)
 r10:00000000 r9:00000002 r8:86715800 r7:000000b9 r6:86e4db40 r5:86a83f50
 r4:86bb7800
[<81463a90>] (netlink_sendmsg) from [<81321f54>] (sock_sendmsg_nosec net/socket.c:654 [inline])
[<81463a90>] (netlink_sendmsg) from [<81321f54>] (sock_sendmsg+0x3c/0x4c net/socket.c:674)
 r10:00000000 r9:86a83dd4 r8:00000000 r7:860fb740 r6:00000000 r5:860fb740
 r4:86a83f50
[<81321f18>] (sock_sendmsg) from [<813234d0>] (____sys_sendmsg+0x230/0x29c net/socket.c:2350)
 r5:00000040 r4:86a83f50
[<813232a0>] (____sys_sendmsg) from [<8132549c>] (___sys_sendmsg+0xac/0xe4 net/socket.c:2404)
 r10:00000128 r9:86a82000 r8:00000000 r7:00000000 r6:860fb740 r5:86a83f50
 r4:00000000
[<813253f0>] (___sys_sendmsg) from [<81325684>] (__sys_sendmsg net/socket.c:2433 [inline])
[<813253f0>] (___sys_sendmsg) from [<81325684>] (__do_sys_sendmsg net/socket.c:2442 [inline])
[<813253f0>] (___sys_sendmsg) from [<81325684>] (sys_sendmsg+0x58/0xa0 net/socket.c:2440)
 r8:80200224 r7:00000128 r6:00000000 r5:7eb1e41c r4:860fb740
[<8132562c>] (sys_sendmsg) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64)
Exception stack(0x86a83fa8 to 0x86a83ff0)
3fa0:                   00000000 00000000 0000000c 7eb1e41c 00000000 00000000
3fc0: 00000000 00000000 76f41840 00000128 00000000 00000091 7eb1e41c 000563f8
3fe0: 00056110 7eb1e3e0 00036cec 76c1df44
 r6:76f41840 r5:00000000 r4:00000000
Rebooting in 86400 seconds..