------------[ cut here ]------------ BUG: unable to handle page fault for address: ffffc90000007ff8 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 11000067 P4D 11000067 PUD 111b4067 PMD 111b5067 PTE 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12097 Comm: syz-executor.4 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sysvec_apic_timer_interrupt+0x7b/0xc0 arch/x86/kernel/apic/apic.c:1100 Code: 00 00 48 c7 c7 60 43 68 89 e8 b1 19 00 00 48 c7 c7 60 4b 68 89 65 c6 05 c6 18 eb 76 01 e8 9d 19 00 00 65 4c 8b 1d bd 18 eb 76 <49> 89 23 4c 89 dc e8 8a fe 2e f8 48 89 ef e8 22 1a 1a f8 e8 6d ff RSP: 0018:ffffc90002127030 EFLAGS: 00010002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc900122b3000 RDX: 0000000000040000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90002127048 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff817aef15 R11: ffffc90000007ff8 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f30302ef700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000007ff8 CR3: 000000001bea7000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:197 Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 39 13 8d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffffc900021270f8 EFLAGS: 00000212 RAX: 000000000000502d RBX: 0000000000000000 RCX: ffffc900122b3000 RDX: 0000000000040000 RSI: ffffffff815cb113 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff902408a7 R10: ffffffff815cb109 R11: 0000000000000000 R12: ffffffff84bbfdb0 R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90002127158 console_unlock+0x7c9/0xc40 kernel/printk/printk.c:2653 vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2174 vprintk+0x8d/0x260 kernel/printk/printk_safe.c:392 printk+0xba/0xed kernel/printk/printk.c:2216 __warn_printk+0x9b/0xf3 kernel/panic.c:644 __vunmap+0x150/0xb60 mm/vmalloc.c:2546 __vfree+0x3c/0xd0 mm/vmalloc.c:2613 vfree+0x5a/0x90 mm/vmalloc.c:2644 ipcomp_free_scratches+0xc4/0x160 net/xfrm/xfrm_ipcomp.c:203 ipcomp_free_data net/xfrm/xfrm_ipcomp.c:312 [inline] ipcomp_init_state+0x77c/0xa40 net/xfrm/xfrm_ipcomp.c:364 ipcomp6_init_state+0xc2/0x700 net/ipv6/ipcomp6.c:154 __xfrm_init_state+0x9c8/0x15b0 net/xfrm/xfrm_state.c:2606 xfrm_init_state+0x1a/0x70 net/xfrm/xfrm_state.c:2633 pfkey_msg2xfrm_state net/key/af_key.c:1291 [inline] pfkey_add+0x1a64/0x2cd0 net/key/af_key.c:1508 pfkey_process+0x685/0x7e0 net/key/af_key.c:2841 pfkey_sendmsg+0x42d/0x800 net/key/af_key.c:3680 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x331/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmmsg+0x195/0x470 net/socket.c:2490 __do_sys_sendmmsg net/socket.c:2519 [inline] __se_sys_sendmmsg net/socket.c:2516 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2516 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 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:00007f30302ef188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000393 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004402 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffee612b0bf R14: 00007f30302ef300 R15: 0000000000022000 Modules linked in: CR2: ffffc90000007ff8 ---[ end trace 8d8929678e390e20 ]--- RIP: 0010:sysvec_apic_timer_interrupt+0x7b/0xc0 arch/x86/kernel/apic/apic.c:1100 Code: 00 00 48 c7 c7 60 43 68 89 e8 b1 19 00 00 48 c7 c7 60 4b 68 89 65 c6 05 c6 18 eb 76 01 e8 9d 19 00 00 65 4c 8b 1d bd 18 eb 76 <49> 89 23 4c 89 dc e8 8a fe 2e f8 48 89 ef e8 22 1a 1a f8 e8 6d ff RSP: 0018:ffffc90002127030 EFLAGS: 00010002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc900122b3000 RDX: 0000000000040000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90002127048 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff817aef15 R11: ffffc90000007ff8 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f30302ef700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000007ff8 CR3: 000000001bea7000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400