syzbot


kernel BUG at ./include/linux/mm.h:LINE!

Status: closed as invalid on 2017/10/27 08:04
Reported-by: syzbot+18132812a54b1c064d6742f5662c0f8ee40382e4@syzkaller.appspotmail.com
First crash: 2417d, last: 2403d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-49 kernel BUG at ./include/linux/mm.h:LINE! 2 1722d 1778d 0/3 auto-closed as invalid on 2019/11/08 12:23
upstream kernel BUG at ./include/linux/mm.h:LINE! (2) crypto 27 2294d 2312d 0/26 closed as dup on 2017/11/29 05:00
upstream kernel BUG at ./include/linux/mm.h:LINE! (3) usb C 621 2265d 2282d 3/26 fixed on 2018/01/19 01:24
android-414 kernel BUG at ./include/linux/mm.h:LINE! 1 1836d 1810d 0/1 auto-closed as invalid on 2019/09/15 03:11

Sample crash report:
------------[ cut here ]------------
kernel BUG at ./include/linux/mm.h:832!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 2 PID: 15308 Comm: syz-executor4 Not tainted 4.13.0-rc7-next-20170829+ #11
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
task: ffff880066958080 task.stack: ffff8800516c8000
RIP: 0010:get_page include/linux/mm.h:832 [inline]
RIP: 0010:kvm_get_pfn+0x1e6/0x210 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1750
RSP: 0018:ffff8800516cec78 EFLAGS: 00010203
RAX: 0000000000000000 RBX: 1ffff1000a2d9d8f RCX: 0000000000000000
RDX: 0000000000002b31 RSI: ffffffff819515a4 RDI: ffffed000a2d9d80
RBP: ffff8800516ced40 R08: ffffffff85b30e38 R09: 0000000000000000
R10: dffffc0000000000 R11: 0000000000000000 R12: ffffea00012b2480
R13: ffff8800516ced18 R14: 1ffff1000a2d9d93 R15: 0000000000000000
FS:  00007fdc04663700(0000) GS:ffff88006de00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006e8740 CR3: 00000000395d3000 CR4: 00000000000026e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 hva_to_pfn_remapped arch/x86/kvm/../../../virt/kvm/kvm_main.c:1509 [inline]
 hva_to_pfn arch/x86/kvm/../../../virt/kvm/kvm_main.c:1562 [inline]
 __gfn_to_pfn_memslot+0xab6/0x10c0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1601
 try_async_pf+0x13b/0xc40 arch/x86/kvm/mmu.c:3804
 tdp_page_fault+0x40a/0xa70 arch/x86/kvm/mmu.c:3901
 kvm_mmu_page_fault+0x10c/0x2f0 arch/x86/kvm/mmu.c:4933
 handle_ept_violation+0x194/0x540 arch/x86/kvm/vmx.c:6502
 vmx_handle_exit+0x24b/0x1a60 arch/x86/kvm/vmx.c:8823
 vcpu_enter_guest arch/x86/kvm/x86.c:7049 [inline]
 vcpu_run arch/x86/kvm/x86.c:7111 [inline]
 kvm_arch_vcpu_ioctl_run+0x1d36/0x5a30 arch/x86/kvm/x86.c:7272
 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2592
 vfs_ioctl fs/ioctl.c:45 [inline]
 do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:685
 SYSC_ioctl fs/ioctl.c:700 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x446749
RSP: 002b:00007fdc04662c08 EFLAGS: 00000296 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000000001a RCX: 0000000000446749
RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000001a
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 00000000ffffffff
R13: 00000000000057b0 R14: 00000000006e7870 R15: 0000000000000006
Code: 1c e9 c3 fe ff ff e8 3a 22 9b 00 eb ab 4c 89 f7 e8 d0 22 9b 00 eb c3 e8 69 7a 66 00 48 c7 c6 60 7e e1 84 4c 89 e7 e8 ca af 8d 00 <0f> 0b e8 53 7a 66 00 4d 8d 67 ff e9 3e ff ff ff e8 25 22 9b 00 
RIP: get_page include/linux/mm.h:832 [inline] RSP: ffff8800516cec78
RIP: kvm_get_pfn+0x1e6/0x210 arch/x86/kvm/../../../virt/kvm/kvm_main.c:1750 RSP: ffff8800516cec78
---[ end trace ce37530c5b515380 ]---

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/08/29 13:13 linux-next 9458bf6edfa8 ed7f9598 .config console log report skylake-linux-next-kasan-qemu
2017/08/16 14:48 linux-next 5d51332f20b2 f93be584 .config console log report skylake-linux-next-kasan-qemu
2017/08/14 21:11 linux-next 91dfed74eabc 6a0246bf .config console log report ci-upstream-next-kasan-gce
* Struck through repros no longer work on HEAD.