syzbot


BUG: unable to handle kernel paging request in corrupted (2)
Status: closed as dup on 2019/07/23 07:35
Reported-by: syzbot+08b7a2c58acdfa12c82d@syzkaller.appspotmail.com
First crash: 1041d, last: 1041d

Cause bisection: introduced by (bisect log) :
commit 9343ac87f2a4e09bf6e27b5f31e72e9e3a82abff
Author: Dave Stevenson <dave.stevenson@raspberrypi.org>
Date: Mon Jun 25 14:07:15 2018 +0000

  net: lan78xx: Use s/w csum check on VLANs without tag stripping

Crash: general protection fault in bpf_tcp_close (log)
Repro: syz .config
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
kernel panic: corrupted stack end in dput syz done 1 1059d 1059d
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: unable to handle kernel paging request in corrupted C 10 1239d 1501d 0/22 closed as invalid on 2019/06/11 06:50
upstream BUG: unable to handle kernel paging request in corrupted (3) C done 45 205d 373d 22/22 fixed on 2021/11/10 00:50
android-54 BUG: unable to handle kernel paging request in corrupted C 1 773d 773d 0/2 closed as invalid on 2021/10/13 14:32

Sample crash report:
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
BUG: unable to handle page fault for address: 00000000ffffffff
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 9ad32067 P4D 9ad32067 PUD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 9920 Comm: syz-executor.1 Not tainted 5.2.0+ #91
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
BUG: kernel NULL pointer dereference, address: 0000000000000002
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 9ad32067 P4D 9ad32067 PUD 9ad33067 PMD 0 
Oops: 0010 [#2] PREEMPT SMP KASAN
CPU: 0 PID: 9920 Comm: syz-executor.1 Not tainted 5.2.0+ #91
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x2
Code: Bad RIP value.
RSP: 0000:ffff888092932a20 EFLAGS: 00010086
RAX: 000000000000002d RBX: ffff888092932a40 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815c1016 RDI: ffffed1012526536
RBP: ffffffff81724d28 R08: 000000000000002d R09: ffffed1015d044fa
R10: ffffed1015d044f9 R11: ffff8880ae8227cf R12: ffffffff81b3e334
R13: 0000000000000010 R14: 0000000000000000 R15: 1ffff1101252654b
FS:  000055555572a940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd8 CR3: 000000009c4d1000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2019/07/19 05:13 net 49d05fe2c9d1 7bb222f7 .config log report syz