syzbot


BUG: unable to handle kernel paging request in __handle_mm_fault

Status: auto-closed as invalid on 2020/08/25 02:34
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+022e0da2528763bb8b02@syzkaller.appspotmail.com
First crash: 1423d, last: 1423d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel paging request in __handle_mm_fault (2) kernel 1 1085d 1068d 0/26 auto-closed as invalid on 2021/06/28 19:59

Sample crash report:
BUG: unable to handle page fault for address: ffff888218b9e008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD d401067 P4D d401067 PUD d404067 PMD 104063 PTE 7700770
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 30283 Comm: syz-executor.3 Not tainted 5.7.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__handle_mm_fault+0x83f/0x3c90 mm/memory.c:4315
Code: 00 00 e8 24 ab d1 ff 48 8b ac 24 b0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 9c 31 00 00 <48> 8b 6d 00 31 ff 49 89 ec 49 83 e4 9f 4c 89 e6 e8 7c ac d1 ff 4d
RSP: 0000:ffffc90003bb7d18 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888096525a50 RCX: ffffffff81a1937e
RDX: 1ffff11043173c01 RSI: ffffffff81a1938c RDI: 0000000000000007
RBP: ffff888218b9e008 R08: ffff888053d22280 R09: fffffbfff1513015
R10: ffffffff8a8980a7 R11: fffffbfff1513014 R12: dffffc0000000000
R13: 00007f9b8023ed90 R14: 0000000000000000 R15: fff0000000000fff
FS:  000000000211b940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888218b9e008 CR3: 0000000218f0a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 handle_mm_fault+0x1a5/0x660 mm/memory.c:4382
 do_user_addr_fault arch/x86/mm/fault.c:1464 [inline]
 do_page_fault+0x55b/0x13da arch/x86/mm/fault.c:1535
 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1203
RIP: 0033:0x41427f
Code: 0f 84 c8 02 00 00 48 83 bd 78 ff ff ff 00 0f 84 f9 04 00 00 48 8b 95 68 ff ff ff 44 89 95 38 ff ff ff 4c 8d ac 10 00 f7 ff ff <49> 89 85 90 06 00 00 49 8d 85 10 03 00 00 49 89 95 98 06 00 00 41
RSP: 002b:0000000000c9fb00 EFLAGS: 00010206
RAX: 00007f9b8021e000 RBX: 0000000000020000 RCX: 000000000045ca7a
RDX: 0000000000021000 RSI: 0000000000021000 RDI: 0000000000000000
RBP: 0000000000c9fbe0 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000c9fce0
R13: 00007f9b8023e700 R14: 0000000000000396 R15: 000000000078bfac
Modules linked in:
CR2: ffff888218b9e008
---[ end trace 0f0d7a02b0aa92da ]---
RIP: 0010:__handle_mm_fault+0x83f/0x3c90 mm/memory.c:4315
Code: 00 00 e8 24 ab d1 ff 48 8b ac 24 b0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 9c 31 00 00 <48> 8b 6d 00 31 ff 49 89 ec 49 83 e4 9f 4c 89 e6 e8 7c ac d1 ff 4d
RSP: 0000:ffffc90003bb7d18 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff888096525a50 RCX: ffffffff81a1937e
RDX: 1ffff11043173c01 RSI: ffffffff81a1938c RDI: 0000000000000007
RBP: ffff888218b9e008 R08: ffff888053d22280 R09: fffffbfff1513015
R10: ffffffff8a8980a7 R11: fffffbfff1513014 R12: dffffc0000000000
R13: 00007f9b8023ed90 R14: 0000000000000000 R15: fff0000000000fff
FS:  000000000211b940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888218b9e008 CR3: 0000000218f0a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/05/27 02:34 upstream 444fc5cde643 9072c126 .config console log report ci-upstream-kasan-gce
* Struck through repros no longer work on HEAD.