general protection fault in restart_apic

Title	Replies (including bot)	Last reply
[PATCH][for stable/linux-5.15.y] KVM: VMX: Move preemption timer <=> hrtimer dance to common x86	3 (3)	2023/04/03 13:08

Title

Replies (including bot)

Last reply

[PATCH][for stable/linux-5.15.y] KVM: VMX: Move preemption timer <=> hrtimer dance to common x86

3 (3)

2023/04/03 13:08


Created	Duration	User	Repo	Result
2023/03/28 07:53	16m	tudor.ambarus@linaro.org	git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git v5.17	OK log
2023/03/28 06:50	25m	tudor.ambarus@linaro.org	git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git v6.3-rc4	OK log
2023/03/24 08:02	7m	tudor.ambarus@linaro.org	lts	report log

general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] CPU: 1 PID: 328 Comm: syz-executor204 Not tainted 5.15.94-syzkaller-03204-g5448b2fda85f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:apic_lvtt_period arch/x86/kvm/lapic.c:355 [inline] RIP: 0010:restart_apic_timer+0x99/0x990 arch/x86/kvm/lapic.c:1917 Code: f2 01 66 43 c7 44 3c 0d f3 f3 43 c6 44 3c 0f f3 e8 6c e4 58 00 bf 01 00 00 00 e8 a2 e1 35 00 49 8d 5e 68 49 89 dd 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 e8 05 00 00 48 89 5c 24 20 8b 1b bf RSP: 0018:ffffc90000947a40 EFLAGS: 00010202 RAX: 1ffff11020e35da8 RBX: 0000000000000068 RCX: ffffffff84b88c00 RDX: 0000000000000000 RSI: 0000000000030d40 RDI: ffffffff81168d5e RBP: ffffc90000947b60 R08: ffffffff8108d82b R09: ffffed1020e35c59 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000128f50 R13: 000000000000000d R14: 0000000000000000 R15: dffffc0000000000 FS: 00005555574d3300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f973d5e9130 CR3: 000000011fa0a000 CR4: 00000000003526a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> kvm_lapic_switch_to_hv_timer+0x3b/0x40 arch/x86/kvm/lapic.c:1949 vmx_post_block+0x4b/0x60 arch/x86/kvm/vmx/vmx.c:7589 vcpu_block arch/x86/kvm/x86.c:10052 [inline] vcpu_run arch/x86/kvm/x86.c:10106 [inline] kvm_arch_vcpu_ioctl_run+0xdff/0x2150 arch/x86/kvm/x86.c:10336 kvm_vcpu_ioctl+0x7eb/0xcf0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3843 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0x114/0x190 fs/ioctl.c:860 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f973d577b99 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff76e02538 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f973d577b99 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff76e026d8 R10: 0000000000009120 R11: 0000000000000246 R12: 00007f973d53ae00 R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace f6414f99fcc491c7 ]--- RIP: 0010:apic_lvtt_period arch/x86/kvm/lapic.c:355 [inline] RIP: 0010:restart_apic_timer+0x99/0x990 arch/x86/kvm/lapic.c:1917 Code: f2 01 66 43 c7 44 3c 0d f3 f3 43 c6 44 3c 0f f3 e8 6c e4 58 00 bf 01 00 00 00 e8 a2 e1 35 00 49 8d 5e 68 49 89 dd 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 e8 05 00 00 48 89 5c 24 20 8b 1b bf RSP: 0018:ffffc90000947a40 EFLAGS: 00010202 RAX: 1ffff11020e35da8 RBX: 0000000000000068 RCX: ffffffff84b88c00 RDX: 0000000000000000 RSI: 0000000000030d40 RDI: ffffffff81168d5e RBP: ffffc90000947b60 R08: ffffffff8108d82b R09: ffffed1020e35c59 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000128f50 R13: 000000000000000d R14: 0000000000000000 R15: dffffc0000000000 FS: 00005555574d3300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f973d5e9130 CR3: 000000011fa0a000 CR4: 00000000003526a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: f2 01 66 43 repnz add %esp,0x43(%rsi) 4: c7 44 3c 0d f3 f3 43 movl $0xc643f3f3,0xd(%rsp,%rdi,1) b: c6 c: 44 3c 0f rex.R cmp $0xf,%al f: f3 e8 6c e4 58 00 repz callq 0x58e481 15: bf 01 00 00 00 mov $0x1,%edi 1a: e8 a2 e1 35 00 callq 0x35e1c1 1f: 49 8d 5e 68 lea 0x68(%r14),%rbx 23: 49 89 dd mov %rbx,%r13 26: 49 c1 ed 03 shr $0x3,%r13 * 2a: 43 0f b6 44 3d 00 movzbl 0x0(%r13,%r15,1),%eax <-- trapping instruction 30: 84 c0 test %al,%al 32: 0f 85 e8 05 00 00 jne 0x620 38: 48 89 5c 24 20 mov %rbx,0x20(%rsp) 3d: 8b 1b mov (%rbx),%ebx 3f: bf .byte 0xbf