Hello, syzbot found the following issue on: HEAD commit: 29c395c7 Merge tag 'x86-entry-2021-02-24' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15246466d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=c581c545cb4ffac7 dashboard link: https://syzkaller.appspot.com/bug?extid=12cf5fbfdeba210a89dd compiler: Debian clang version 11.0.1-2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+12cf5fbfdeba210a89dd@xxxxxxxxxxxxxxxxxxxxxxxxx general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 0 PID: 12596 Comm: syz-executor.2 Not tainted 5.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:crypto_destroy_tfm+0x3b/0x260 crypto/api.c:568 Code: 48 89 fb e8 c7 d7 db fd 48 85 db 0f 84 0c 02 00 00 48 89 1c 24 49 bc 00 00 00 00 00 fc ff df 4c 8d 7d 10 4c 89 fb 48 c1 eb 03 <42> 80 3c 23 00 74 08 4c 89 ff e8 76 ff 1f fe 48 8b 45 10 48 89 44 RSP: 0018:ffffc90001aff798 EFLAGS: 00010203 RAX: ffffffff839ca5e9 RBX: 0000000000000002 RCX: 0000000000040000 RDX: ffffc9000dd37000 RSI: 000000000000aeb0 RDI: 000000000000aeb1 RBP: 0000000000000006 R08: ffffffff839ca4e5 R09: fffffbfff1f28ab5 R10: fffffbfff1f28ab5 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888012f78000 R14: ffff888012f78080 R15: 0000000000000016 FS: 00007fe6e40b8700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000014a53ad CR3: 0000000029fb0000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: crypto_free_aead include/crypto/aead.h:191 [inline] llsec_key_alloc net/mac802154/llsec.c:156 [inline] mac802154_llsec_key_add+0x930/0xe50 net/mac802154/llsec.c:249 ieee802154_add_llsec_key+0x61/0x80 net/mac802154/cfg.c:338 rdev_add_llsec_key net/ieee802154/rdev-ops.h:260 [inline] nl802154_add_llsec_key+0x4ca/0x7b0 net/ieee802154/nl802154.c:1584 genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0xe4e/0x1280 net/netlink/genetlink.c:800 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2502 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x9ae/0xd50 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x519/0x800 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x2bf/0x370 net/socket.c:2437 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465ef9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe6e40b8188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465ef9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000004 RBP: 00000000004bcd1c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 R13: 00007fffc1f33d2f R14: 00007fe6e40b8300 R15: 0000000000022000 Modules linked in: ---[ end trace c6264ccb84eba4a4 ]--- RIP: 0010:crypto_destroy_tfm+0x3b/0x260 crypto/api.c:568 Code: 48 89 fb e8 c7 d7 db fd 48 85 db 0f 84 0c 02 00 00 48 89 1c 24 49 bc 00 00 00 00 00 fc ff df 4c 8d 7d 10 4c 89 fb 48 c1 eb 03 <42> 80 3c 23 00 74 08 4c 89 ff e8 76 ff 1f fe 48 8b 45 10 48 89 44 RSP: 0018:ffffc90001aff798 EFLAGS: 00010203 RAX: ffffffff839ca5e9 RBX: 0000000000000002 RCX: 0000000000040000 RDX: ffffc9000dd37000 RSI: 000000000000aeb0 RDI: 000000000000aeb1 RBP: 0000000000000006 R08: ffffffff839ca4e5 R09: fffffbfff1f28ab5 R10: fffffbfff1f28ab5 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888012f78000 R14: ffff888012f78080 R15: 0000000000000016 FS: 00007fe6e40b8700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d228000 CR3: 0000000029fb0000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.