BUG: unable to handle page fault for address: ffff8a24ae400144 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 0 P4D 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 32630 Comm: syz-executor.3 Not tainted 5.9.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tcp_retransmit_timer+0xa63/0x3220 net/ipv4/tcp_timer.c:500 Code: ff df 4c 8b 6d 30 49 8d bd 50 02 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d4 22 00 00 48 8b 74 24 10 49 8b 85 50 02 00 00 <65> 48 ff 80 40 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 75 30 RSP: 0018:ffffc90000007b78 EFLAGS: 00010246 RAX: 000001a400000004 RBX: 1ffff92000000f77 RCX: ffffffff86eadee5 RDX: 1ffff11009b0145a RSI: ffff88805f91ecd2 RDI: ffff88804d80a2d0 RBP: ffff88805f91ecc0 R08: 0000000000000001 R09: ffffffff8d0bca5f R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805f91ecf0 R13: ffff88804d80a080 R14: ffff888058d84080 R15: ffff8880ae425600 FS: 00007f5993035700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8a24ae400144 CR3: 0000000088756000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: tcp_write_timer_handler+0x79b/0xa60 net/ipv4/tcp_timer.c:611 tcp_write_timer+0xa2/0x2b0 net/ipv4/tcp_timer.c:631 call_timer_fn+0x1ac/0x760 kernel/time/timer.c:1413 expire_timers kernel/time/timer.c:1458 [inline] __run_timers.part.0+0x67c/0xaa0 kernel/time/timer.c:1755 __run_timers kernel/time/timer.c:1736 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1768 __do_softirq+0x2ed/0xab4 kernel/softirq.c:298 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x9d/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x1f3/0x230 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x4/0x20 kernel/kcov.c:270 Code: 84 00 00 00 00 00 48 8b 0c 24 48 89 f2 48 89 fe bf 06 00 00 00 e9 0c ff ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 48 8b 0c 24 <40> 0f b6 d6 40 0f b6 f7 bf 01 00 00 00 e9 ea fe ff ff 66 2e 0f 1f RSP: 0018:ffffc900058175a0 EFLAGS: 00000202 RAX: 000000000000741c RBX: 000000000000000d RCX: ffffffff838aa0da RDX: 0000000000040000 RSI: 000000000000000d RDI: 0000000000000010 RBP: ffff88809c8d5300 R08: 0000000000000001 R09: ffffffff8d5f3d87 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000100 R13: 0000000000000249 R14: dffffc0000000000 R15: 0000000000000000 tomoyo_domain_quota_is_ok+0x32a/0x550 security/tomoyo/util.c:1070 tomoyo_supervisor+0x2f2/0xef0 security/tomoyo/common.c:2089 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573 tomoyo_check_open_permission+0x30f/0x380 security/tomoyo/file.c:780 tomoyo_file_open security/tomoyo/tomoyo.c:313 [inline] tomoyo_file_open+0xa3/0xd0 security/tomoyo/tomoyo.c:308 security_file_open+0x52/0x4f0 security/security.c:1574 do_dentry_open+0x358/0x11b0 fs/open.c:804 do_open fs/namei.c:3251 [inline] path_openat+0x1b9a/0x2730 fs/namei.c:3368 do_filp_open+0x17e/0x3c0 fs/namei.c:3395 do_sys_openat2+0x16d/0x420 fs/open.c:1168 do_sys_open fs/open.c:1184 [inline] __do_sys_openat fs/open.c:1200 [inline] __se_sys_openat fs/open.c:1195 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1195 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5f9 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:00007f5993034c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000022440 RCX: 000000000045d5f9 RDX: 0000000000007a05 RSI: 0000000020000340 RDI: ffffffffffffff9c RBP: 000000000118d028 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001700 R11: 0000000000000246 R12: 000000000118cfec R13: 00007ffda01c451f R14: 00007f59930359c0 R15: 000000000118cfec Modules linked in: CR2: ffff8a24ae400144 ---[ end trace 4de78856b6a59711 ]--- RIP: 0010:tcp_retransmit_timer+0xa63/0x3220 net/ipv4/tcp_timer.c:500 Code: ff df 4c 8b 6d 30 49 8d bd 50 02 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d4 22 00 00 48 8b 74 24 10 49 8b 85 50 02 00 00 <65> 48 ff 80 40 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 75 30 RSP: 0018:ffffc90000007b78 EFLAGS: 00010246 RAX: 000001a400000004 RBX: 1ffff92000000f77 RCX: ffffffff86eadee5 RDX: 1ffff11009b0145a RSI: ffff88805f91ecd2 RDI: ffff88804d80a2d0 RBP: ffff88805f91ecc0 R08: 0000000000000001 R09: ffffffff8d0bca5f R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805f91ecf0 R13: ffff88804d80a080 R14: ffff888058d84080 R15: ffff8880ae425600 FS: 00007f5993035700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8a24ae400144 CR3: 0000000088756000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600