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WARNING in strp_data_ready

Status: fixed on 2018/01/17 19:25
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+c91c53af67f9ebe599a337d2e70950366153b295@syzkaller.appspotmail.com
Fix commit: d66fa9ec53c4 strparser: Call sock_owned_by_user_nocheck
First crash: 2433d, last: 2305d
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[PATCH net 0/2] strparser: Fix lockdep issue 4 (4) 2017/12/28 19:29
Re: WARNING in strp_data_ready 3 (4) 2017/12/28 08:13
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in strp_data_ready C 15 433d 849d 0/1 upstream: reported C repro on 2021/12/29 15:47

Sample crash report:
WARNING: CPU: 0 PID: 2985 at ./include/net/sock.h:1505 sock_owned_by_me include/net/sock.h:1505 [inline]
WARNING: CPU: 0 PID: 2985 at ./include/net/sock.h:1505 sock_owned_by_user include/net/sock.h:1511 [inline]
WARNING: CPU: 0 PID: 2985 at ./include/net/sock.h:1505 strp_data_ready+0x2b7/0x390 net/strparser/strparser.c:404
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 2985 Comm: syzkaller969815 Not tainted 4.14.0-rc5+ #142
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 panic+0x1e4/0x417 kernel/panic.c:181
 __warn+0x1c4/0x1d9 kernel/panic.c:542
 report_bug+0x211/0x2d0 lib/bug.c:183
 fixup_bug+0x40/0x90 arch/x86/kernel/traps.c:178
 do_trap_no_signal arch/x86/kernel/traps.c:212 [inline]
 do_trap+0x260/0x390 arch/x86/kernel/traps.c:261
 do_error_trap+0x120/0x390 arch/x86/kernel/traps.c:298
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:311
 invalid_op+0x18/0x20 arch/x86/entry/entry_64.S:905
RIP: 0010:sock_owned_by_me include/net/sock.h:1505 [inline]
RIP: 0010:sock_owned_by_user include/net/sock.h:1511 [inline]
RIP: 0010:strp_data_ready+0x2b7/0x390 net/strparser/strparser.c:404
RSP: 0018:ffff8801d22df7c8 EFLAGS: 00010297
RAX: ffff8801d1da2780 RBX: ffff8801d29eec48 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff8801d2328920 RDI: ffffffff85cbee20
RBP: ffff8801d22df7e8 R08: 0000000000000002 R09: 1ffffffff0ce0bca
R10: ffff8801d22df6b0 R11: 1ffff1003a3b474b R12: ffff8801d2328880
R13: ffff8801d29eec50 R14: ffff8801d22df950 R15: ffff8801d2328880
 psock_data_ready+0x56/0x70 net/kcm/kcmsock.c:353
 unix_dgram_sendmsg+0xa72/0x1600 net/unix/af_unix.c:1808
 unix_seqpacket_sendmsg+0xf3/0x160 net/unix/af_unix.c:2062
 sock_sendmsg_nosec net/socket.c:633 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:643
 sock_write_iter+0x31a/0x5d0 net/socket.c:912
 call_write_iter include/linux/fs.h:1770 [inline]
 do_iter_readv_writev+0x525/0x7f0 fs/read_write.c:673
 do_iter_write+0x154/0x540 fs/read_write.c:952
 vfs_writev+0x18a/0x340 fs/read_write.c:997
 do_writev+0xfc/0x2a0 fs/read_write.c:1032
 SYSC_writev fs/read_write.c:1105 [inline]
 SyS_writev+0x27/0x30 fs/read_write.c:1102
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x43fe99
RSP: 002b:00007fff75f4e538 EFLAGS: 00000217 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe99
RDX: 0000000000000005 RSI: 0000000020019fb0 RDI: 0000000000000004
RBP: 0000000000000082 R08: 0000000000401800 R09: 0000000000401800
R10: 0000000000401800 R11: 0000000000000217 R12: 0000000000401800
R13: 0000000000401890 R14: 0000000000000000 R15: 0000000000000000
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (59034):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/10/22 05:16 upstream 0787643a5f6a 4d9c0713 .config console log report syz C ci-upstream-kasan-gce
2017/10/22 01:39 upstream 0787643a5f6a 4d9c0713 .config console log report syz C ci-upstream-kasan-gce
2017/10/19 14:19 upstream 73d3393ada4f 3704c601 .config console log report syz C ci-upstream-kasan-gce
2017/10/26 01:56 upstream f34157878d3b 83d9c302 .config console log report syz C ci-upstream-kasan-gce-386
2017/10/23 22:16 upstream 6cff0a118f23 92f543f0 .config console log report syz C ci-upstream-kasan-gce-386
2017/12/23 14:22 mmots 37759fa6d0fa 73aba437 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/10/29 09:31 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/29 04:50 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/29 00:26 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/28 23:40 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/28 11:18 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/26 02:11 mmots 0f611fb6dcc0 e0a2b195 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/10/26 02:11 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/26 00:06 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/23 22:47 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/23 22:32 mmots 0f611fb6dcc0 e0a2b195 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/10/22 05:30 mmots 0f611fb6dcc0 e0a2b195 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/10/22 05:30 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/22 02:12 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/10/22 01:59 mmots 0f611fb6dcc0 e0a2b195 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/10/19 14:20 mmots 3ac81ebcbbb3 355f57c5 .config console log report syz C ci-upstream-mmots-kasan-gce
2017/10/19 14:19 linux-next 36ef71cae353 e511d9f8 .config console log report syz C ci-upstream-next-kasan-gce
2017/09/05 17:59 linux-next 744c56def809 0ed1da4a .config console log report syz C skylake-linux-next-kasan-qemu
2017/12/22 22:28 upstream ead68f216110 8e409090 .config console log report syz ci-upstream-kasan-gce
2017/12/23 04:29 net-next-old fba961ab29e5 8e409090 .config console log report syz ci-upstream-net-kasan-gce
2017/12/24 02:23 linux-next 0e08c463db38 73aba437 .config console log report syz ci-upstream-next-kasan-gce
2017/11/22 14:01 net-next-old 0c86a6bd85ff ddf7b3e0 .config console log report ci-upstream-kasan-gce-386
2017/11/22 13:57 net-next-old 0c86a6bd85ff ddf7b3e0 .config console log report ci-upstream-kasan-gce-386
2017/11/22 13:30 net-next-old 0c86a6bd85ff ddf7b3e0 .config console log report ci-upstream-kasan-gce-386
2017/11/22 13:26 net-next-old 0c86a6bd85ff ddf7b3e0 .config console log report ci-upstream-kasan-gce-386
2017/11/22 13:21 net-next-old 0c86a6bd85ff ddf7b3e0 .config console log report ci-upstream-kasan-gce-386
2017/11/22 13:17 net-next-old 0c86a6bd85ff ddf7b3e0 .config console log report ci-upstream-kasan-gce-386
2017/11/22 13:09 net-next-old 0c86a6bd85ff ddf7b3e0 .config console log report ci-upstream-kasan-gce-386
2018/01/02 23:58 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 21:26 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 20:24 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 16:54 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 12:30 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 11:06 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 09:13 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 06:13 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 03:47 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/02 02:12 linux-next 0e08c463db38 00193447 .config console log report ci-upstream-next-kasan-gce
2018/01/01 20:21 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/01 18:38 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/01 15:05 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/01 11:56 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/01 08:59 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2018/01/01 01:09 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2017/12/31 21:25 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2017/12/31 17:34 linux-next 0e08c463db38 00193447 .config console log report ci-upstream-next-kasan-gce
2017/12/31 14:59 mmots 37759fa6d0fa 00193447 .config console log report ci-upstream-mmots-kasan-gce
2017/12/31 13:04 linux-next 0e08c463db38 00193447 .config console log report ci-upstream-next-kasan-gce
2017/12/31 08:28 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/31 04:30 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/31 03:04 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/30 23:14 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/30 19:38 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/30 16:47 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/30 14:11 linux-next 0e08c463db38 bb6384b8 .config console log report ci-upstream-next-kasan-gce
2017/12/30 11:29 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/30 05:21 mmots 37759fa6d0fa bb6384b8 .config console log report ci-upstream-mmots-kasan-gce
2017/12/30 03:45 linux-next 0e08c463db38 bb6384b8 .config console log report ci-upstream-next-kasan-gce
2017/12/30 02:01 linux-next 0e08c463db38 bb6384b8 .config console log report ci-upstream-next-kasan-gce
2017/11/22 13:36 linux-next 1efc584c7106 31af2ce0 .config console log report ci-upstream-next-kasan-gce
2017/11/22 13:16 linux-next 1efc584c7106 31af2ce0 .config console log report ci-upstream-next-kasan-gce
* Struck through repros no longer work on HEAD.