syzbot


BUG: stack guard page was hit in sys_getsockopt

Status: auto-closed as invalid on 2022/03/13 02:54
Subsystems: net
[Documentation on labels]
First crash: 863d, last: 863d

Sample crash report:
BUG: TASK stack guard page was hit at ffffc9000a807ff8 (stack is ffffc9000a808000..ffffc9000a810000)
stack guard page: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 17910 Comm: syz-executor.5 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tls_getsockopt+0x15/0x6a0 net/tls/tls_main.c:536
Code: 31 cd e9 f9 eb 93 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41 89 d7 41 56 41 55 49 89 cd 41 54 41 89 f4 55 48 89 fd <53> 4c 89 c3 48 83 ec 10 e8 de 65 a2 f9 48 8d bd 60 07 00 00 48 b8
RSP: 0018:ffffc9000a808000 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 00000000200002c0 RCX: 0000000020000240
RDX: 0000000000000042 RSI: 0000000000000000 RDI: ffff88804c2a6000
RBP: ffff88804c2a6000 R08: 00000000200002c0 R09: 0000000000000000
R10: ffffffff87d54548 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000020000240 R14: ffffffff90873040 R15: 0000000000000042
FS:  00007f1c7c4eb700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000a807ff8 CR3: 000000001cd2b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
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 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
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 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
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 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
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 tls_getsockopt+0xc1/0x6a0 net/tls/tls_main.c:540
 __sys_getsockopt+0x21f/0x5f0 net/socket.c:2220
 __do_sys_getsockopt net/socket.c:2235 [inline]
 __se_sys_getsockopt net/socket.c:2232 [inline]
 __x64_sys_getsockopt+0xba/0x150 net/socket.c:2232
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1c7db75e99
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1c7c4eb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007f1c7dc88f60 RCX: 00007f1c7db75e99
RDX: 0000000000000042 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f1c7dbd0031 R08: 00000000200002c0 R09: 0000000000000000
R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd29b41f4f R14: 00007f1c7c4eb300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 802a9dddfae83931 ]---
RIP: 0010:tls_getsockopt+0x15/0x6a0 net/tls/tls_main.c:536
Code: 31 cd e9 f9 eb 93 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 57 41 89 d7 41 56 41 55 49 89 cd 41 54 41 89 f4 55 48 89 fd <53> 4c 89 c3 48 83 ec 10 e8 de 65 a2 f9 48 8d bd 60 07 00 00 48 b8
RSP: 0018:ffffc9000a808000 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 00000000200002c0 RCX: 0000000020000240
RDX: 0000000000000042 RSI: 0000000000000000 RDI: ffff88804c2a6000
RBP: ffff88804c2a6000 R08: 00000000200002c0 R09: 0000000000000000
R10: ffffffff87d54548 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000020000240 R14: ffffffff90873040 R15: 0000000000000042
FS:  00007f1c7c4eb700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000a807ff8 CR3: 000000001cd2b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	31 cd                	xor    %ecx,%ebp
   2:	e9 f9 eb 93 66       	jmpq   0x6693ec00
   7:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
   e:	00 00 00
  11:	0f 1f 40 00          	nopl   0x0(%rax)
  15:	41 57                	push   %r15
  17:	41 89 d7             	mov    %edx,%r15d
  1a:	41 56                	push   %r14
  1c:	41 55                	push   %r13
  1e:	49 89 cd             	mov    %rcx,%r13
  21:	41 54                	push   %r12
  23:	41 89 f4             	mov    %esi,%r12d
  26:	55                   	push   %rbp
  27:	48 89 fd             	mov    %rdi,%rbp
* 2a:	53                   	push   %rbx <-- trapping instruction
  2b:	4c 89 c3             	mov    %r8,%rbx
  2e:	48 83 ec 10          	sub    $0x10,%rsp
  32:	e8 de 65 a2 f9       	callq  0xf9a26615
  37:	48 8d bd 60 07 00 00 	lea    0x760(%rbp),%rdi
  3e:	48                   	rex.W
  3f:	b8                   	.byte 0xb8

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/12/13 02:50 net-next-old 8c8b7aa7fb0c 49ca1f59 .config console log report info ci-upstream-net-kasan-gce BUG: stack guard page was hit in sys_getsockopt
* Struck through repros no longer work on HEAD.