divide error: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3154 Comm: kworker/1:102 Not tainted 5.6.0-rc2-next-20200217-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: wg-crypt-wg0 wg_packet_encrypt_worker RIP: 0010:calculate_skb_padding drivers/net/wireguard/send.c:151 [inline] RIP: 0010:encrypt_packet+0xf8/0x920 drivers/net/wireguard/send.c:168 Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 49 06 00 00 8b 4b 3c 44 89 f0 31 d2 48 89 df f1 44 8d 62 0f 41 83 e4 f0 44 39 e1 44 0f 46 e1 41 29 d4 45 8d RSP: 0018:ffffc900094df7a8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880964103c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff84bc329f RDI: ffff8880964103c0 RBP: ffffc900094dfc08 R08: 1ffffffff16a3f90 R09: fffffbfff16a3f91 R10: fffffbfff16a3f90 R11: ffffffff8b51fc87 R12: dffffc0000000000 R13: ffffc900094dfbe0 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2be96e7000 CR3: 0000000099d7b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: wg_packet_encrypt_worker+0x33f/0xe00 drivers/net/wireguard/send.c:291 process_one_work+0xa05/0x17a0 kernel/workqueue.c:2266 worker_thread+0x98/0xe40 kernel/workqueue.c:2412 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: ---[ end trace 8387ebf1bacc5679 ]--- RIP: 0010:calculate_skb_padding drivers/net/wireguard/send.c:151 [inline] RIP: 0010:encrypt_packet+0xf8/0x920 drivers/net/wireguard/send.c:168 Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 49 06 00 00 8b 4b 3c 44 89 f0 31 d2 48 89 df f1 44 8d 62 0f 41 83 e4 f0 44 39 e1 44 0f 46 e1 41 29 d4 45 8d RSP: 0018:ffffc900094df7a8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8880964103c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff84bc329f RDI: ffff8880964103c0 RBP: ffffc900094dfc08 R08: 1ffffffff16a3f90 R09: fffffbfff16a3f91 R10: fffffbfff16a3f90 R11: ffffffff8b51fc87 R12: dffffc0000000000 R13: ffffc900094dfbe0 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000076c000 CR3: 00000000a03c4000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400