syzbot

WARNING: CPU: 0 PID: 27386 at mm/slab.h:420 virt_to_cache mm/slab.h:420 [inline]
WARNING: CPU: 0 PID: 27386 at mm/slab.h:420 __ksize+0xb4/0xc0 mm/slab.c:4195
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 27386 Comm: syz-executor.1 Not tainted 5.9.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x198/0x1fd lib/dump_stack.c:118
 panic+0x347/0x7c0 kernel/panic.c:231
 __warn.cold+0x20/0x46 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:virt_to_cache mm/slab.h:420 [inline]
RIP: 0010:__ksize+0xb4/0xc0 mm/slab.c:4195
Code: 8d 50 ff a8 01 48 0f 45 fa e8 f8 d3 ee ff 0f 0b 48 c7 c6 c0 27 56 88 48 c7 c7 80 d9 6b 89 c6 05 ed 79 f9 08 01 e8 8e 79 91 ff <0f> 0b eb c1 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 55 53
RSP: 0018:ffffc90016506cd0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff8880001e3000 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff815db9a7 RDI: fffff52002ca0d8c
RBP: ffff8880001e3000 R08: 0000000000000001 R09: ffff8880ae6318e7
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000cc0 R14: 00000000ffffffff R15: ffff888092dffc80
 ksize mm/slab_common.c:1174 [inline]
 ksize+0x2c/0x50 mm/slab_common.c:1154
 __alloc_skb+0xc7/0x550 net/core/skbuff.c:217
 alloc_skb include/linux/skbuff.h:1085 [inline]
 alloc_uevent_skb+0x7b/0x210 lib/kobject_uevent.c:289
 uevent_net_broadcast_tagged lib/kobject_uevent.c:350 [inline]
 kobject_uevent_net_broadcast lib/kobject_uevent.c:411 [inline]
 kobject_uevent_env+0xf6f/0x12c0 lib/kobject_uevent.c:592
 device_del+0x89e/0xd90 drivers/base/core.c:3117
 rollback_registered_many+0xb16/0x1210 net/core/dev.c:9310
 rollback_registered net/core/dev.c:9328 [inline]
 unregister_netdevice_queue+0x2dd/0x570 net/core/dev.c:10409
 unregister_netdevice include/linux/netdevice.h:2774 [inline]
 macsec_newlink+0x8e0/0x1860 drivers/net/macsec.c:4117
 __rtnl_newlink+0x108b/0x1740 net/core/rtnetlink.c:3441
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3500
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5563
 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2470
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:671
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2353
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5b9
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fca765b7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002ce80 RCX: 000000000045d5b9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 000000000169fb6f R14: 00007fca765b89c0 R15: 000000000118cf4c
Kernel Offset: disabled
Rebooting in 86400 seconds..