bisecting fixing commit since 7a68065eb9cd194cf03f135c9211eeb2d5c4c0a0
building syzkaller on 0d5abf15b74358009a02efb629f7bc7c84841a1f
testing commit 7a68065eb9cd194cf03f135c9211eeb2d5c4c0a0
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 35af1c5746c2a280056444bf44ff4e98cecb9678672ff71c553f2b925c8800b4
all runs: crashed: WARNING in handle_exception_nmi
testing current HEAD 72a8e05d4f66b5af7854df4490e3135168694b6b
testing commit 72a8e05d4f66b5af7854df4490e3135168694b6b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 7580f4f8b99c2945651a4b49d82ef2ad4a8c1d3ae6144dab9fc5a1e2ad30bc2c
all runs: crashed: WARNING in handle_exception_nmi
revisions tested: 2, total time: 28m40.085821837s (build: 13m5.258528418s, test: 15m9.879817501s)
the crash still happens on HEAD
commit msg: Merge tag 'ovl-fixes-5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
crash: WARNING in handle_exception_nmi
------------[ cut here ]------------
WARNING: CPU: 1 PID: 5771 at arch/x86/kvm/vmx/vmx.c:4977 handle_rmode_exception arch/x86/kvm/vmx/vmx.c:4864 [inline]
WARNING: CPU: 1 PID: 5771 at arch/x86/kvm/vmx/vmx.c:4977 handle_exception_nmi+0xc9c/0xeb0 arch/x86/kvm/vmx/vmx.c:4987
Modules linked in:
CPU: 1 PID: 5771 Comm: syz-executor.0 Not tainted 5.19.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
RIP: 0010:handle_exception_nmi+0xc9c/0xeb0 arch/x86/kvm/vmx/vmx.c:4977
Code: 00 00 85 c0 0f 84 ed f4 ff ff c7 85 84 0d 00 00 00 00 00 00 48 83 c4 18 48 89 ef 5b 5d 41 5c 41 5d 41 5e 41 5f e9 54 10 ef ff <0f> 0b e9 c2 f7 ff ff be 00 40 00 00 e9 07 ff ff ff bf 22 68 00 00
RSP: 0018:ffffc9000adefb10 EFLAGS: 00010246
RAX: 0000000000000001 RBX: 0000000080000b0e RCX: 0000000000000000
RDX: 0000000000000000 RSI: 1ffffffff19d72cd RDI: ffff88806f049eec
RBP: ffff88806f048000 R08: 0000000000000001 R09: ffff88806f04824f
R10: ffffed100de09049 R11: 0000000000000001 R12: 00000000a0000975
R13: ffff88806f0480d8 R14: 000000008000030e R15: ffff88806f048248
FS:  00007f27e9829700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000af800975 CR3: 000000001e18c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000b8fecd19 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vmx_handle_exit arch/x86/kvm/vmx/vmx.c:6255 [inline]
 vmx_handle_exit+0x44b/0x1530 arch/x86/kvm/vmx/vmx.c:6272
 vcpu_enter_guest arch/x86/kvm/x86.c:10366 [inline]
 vcpu_run arch/x86/kvm/x86.c:10455 [inline]
 kvm_arch_vcpu_ioctl_run+0x3239/0x5310 arch/x86/kvm/x86.c:10659
 kvm_vcpu_ioctl+0x455/0xbb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3948
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f27e8689109
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f27e9829168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f27e879bf60 RCX: 00007f27e8689109
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005
RBP: 00007f27e86e30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff328fd6df R14: 00007f27e9829300 R15: 0000000000022000
 </TASK>