From: syzbot <syzbot+0b3ccd4f62dac2cf3a7d@syzkaller.appspotmail.com>
To: davem@davemloft.net, edumazet@google.com, kuznet@ms2.inr.ac.ru,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org
Subject: general protection fault in tcp_cleanup_ulp
Date: Thu, 06 Sep 2018 01:50:02 -0700 [thread overview]
Message-ID: <00000000000006602605752ffa1a@google.com> (raw)
Hello,
syzbot found the following crash on:
HEAD commit: b36fdc6853a3 Merge tag 'gpio-v4.19-2' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1589eb7a400000
kernel config: https://syzkaller.appspot.com/x/.config?x=4c7e83258d6e0156
dashboard link: https://syzkaller.appspot.com/bug?extid=0b3ccd4f62dac2cf3a7d
compiler: gcc (GCC) 8.0.1 20180413 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+0b3ccd4f62dac2cf3a7d@syzkaller.appspotmail.com
ISOFS: Unable to identify CD-ROM format.
ISOFS: Unable to identify CD-ROM format.
ISOFS: Unable to identify CD-ROM format.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 1 PID: 27135 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:tcp_cleanup_ulp+0xbe/0x140 net/ipv4/tcp_ulp.c:131
Code: 02 00 0f 85 8a 00 00 00 49 8b 9c 24 88 06 00 00 e8 b7 f8 cd fb 48 8d
7b 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75
51 48 8b 7b 38 e8 93 5c c2 fb 4c 89 ea 48 b8 00 00
RSP: 0018:ffff8801c754fb80 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90001ed8000
RDX: 0000000000000007 RSI: ffffffff85aed689 RDI: 0000000000000038
RBP: ffff8801c754fba0 R08: 1ffff10038ea9f3c R09: ffffed003b6246de
R10: 0000000000000003 R11: 0000000000000001 R12: ffff8801d7db0440
R13: ffff8801d7db0ac8 R14: ffffffff819162e0 R15: dffffc0000000000
FS: 00007fb062d18700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe020cfbf0 CR3: 00000001ad873000 CR4: 00000000001426e0
Call Trace:
smap_release_sock+0x2e5/0x380 kernel/bpf/sockmap.c:1474
sock_map_delete_elem+0x3e9/0x5a0 kernel/bpf/sockmap.c:1813
map_delete_elem+0x32e/0x4e0 kernel/bpf/syscall.c:882
__do_sys_bpf kernel/bpf/syscall.c:2366 [inline]
__se_sys_bpf kernel/bpf/syscall.c:2334 [inline]
__x64_sys_bpf+0x342/0x510 kernel/bpf/syscall.c:2334
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457099
Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb062d17c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fb062d186d4 RCX: 0000000000457099
RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004cb908 R14: 00000000004c32ca R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
---------------------------------
CPU:1 [LOST 1631 EVENTS]
syz-exec-9417 1...2 282913244us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913249us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913254us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913260us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913265us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913270us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913275us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913280us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913285us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913290us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913295us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913313us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913318us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913323us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913327us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913332us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913337us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913342us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913347us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913363us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913368us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913387us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913392us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913409us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913414us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913419us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913424us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913428us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913434us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913439us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913444us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913449us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913454us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913459us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913464us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913469us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913474us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913479us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913484us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913488us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913493us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913498us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913503us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913508us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913513us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913518us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913523us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913528us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913533us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913538us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913543us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913548us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913553us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913558us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913563us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913568us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913573us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913578us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913583us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913588us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913593us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913598us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913603us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913608us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913613us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913617us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913622us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913628us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913633us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913637us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913642us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913647us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913659us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913665us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913670us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913675us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913680us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913685us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913690us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913695us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913700us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913705us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913710us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913715us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913720us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913725us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913730us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913735us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913740us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913745us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913750us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913755us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913760us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913764us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913769us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913774us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913779us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913784us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913789us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913794us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913799us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913804us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913811us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913816us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913821us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913826us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913831us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913836us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913841us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913846us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913851us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913856us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913861us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913866us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913871us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913876us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913881us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913885us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913890us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913895us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913905us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913910us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913915us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913920us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913931us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282913936us : 0: u00000000a32ec4ab
syz-exec-9417 1.N.2 282914013us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914059us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914065us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914069us : 0: u00000000a32ec4ab
syz-exec-9417 1.N.2 282914133us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914255us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914261us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914266us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914271us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914276us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914281us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914286us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914291us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914295us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914300us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914304us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914308us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914313us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914317us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914321us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914326us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914331us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914336us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914341us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914346us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914351us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914356us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914361us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914366us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914370us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914375us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914380us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914385us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914390us : 0: u00000000a32ec4ab
syz-exec-9417 1...2 282914395us : 0: u00000000a32ec4ab
---------------------------------
---[ end trace 9de9b5e392d96e98 ]---
RIP: 0010:tcp_cleanup_ulp+0xbe/0x140 net/ipv4/tcp_ulp.c:131
Code: 02 00 0f 85 8a 00 00 00 49 8b 9c 24 88 06 00 00 e8 b7 f8 cd fb 48 8d
7b 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75
51 48 8b 7b 38 e8 93 5c c2 fb 4c 89 ea 48 b8 00 00
RSP: 0018:ffff8801c754fb80 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90001ed8000
RDX: 0000000000000007 RSI: ffffffff85aed689 RDI: 0000000000000038
RBP: ffff8801c754fba0 R08: 1ffff10038ea9f3c R09: ffffed003b6246de
R10: 0000000000000003 R11: 0000000000000001 R12: ffff8801d7db0440
R13: ffff8801d7db0ac8 R14: ffffffff819162e0 R15: dffffc0000000000
FS: 00007fb062d18700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe020cfbf0 CR3: 00000001ad873000 CR4: 00000000001426e0
---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
syzbot.
next reply other threads:[~2018-09-06 8:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-06 8:50 syzbot [this message]
2018-09-12 10:00 ` general protection fault in tcp_cleanup_ulp syzbot
2019-03-30 5:17 ` syzbot
2019-11-07 13:42 ` syzbot
2019-11-13 16:50 ` John Fastabend
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=00000000000006602605752ffa1a@google.com \
--to=syzbot+0b3ccd4f62dac2cf3a7d@syzkaller.appspotmail.com \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=kuznet@ms2.inr.ac.ru \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=syzkaller-bugs@googlegroups.com \
--cc=yoshfuji@linux-ipv6.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.