BUG: stack guard page was hit at ffffc9000308fff8 (stack is ffffc90003090000..ffffc90003097fff) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1172 Comm: syz-executor.3 Not tainted 5.14.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:write_comp_data kernel/kcov.c:218 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x17/0x70 kernel/kcov.c:284 Code: 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 89 f1 65 48 8b 34 25 40 f0 01 00 54 f0 ff ff 84 c0 74 4b 48 8b 86 18 15 00 00 8b b6 14 15 00 00 RSP: 0018:ffffc90003090000 EFLAGS: 00010216 RAX: 0000000000000189 RBX: 1ffff92000612008 RCX: 0000000000000006 RDX: 0000000000040000 RSI: ffff88806ddc3880 RDI: 0000000000000003 RBP: ffffc900030900c8 R08: 000000000000011a R09: 0000000000000004 R10: ffffffff87c387e0 R11: 0000000000000000 R12: ffff88806f55cb00 R13: 0000000000000006 R14: 0000000000000014 R15: dffffc0000000000 FS: 00007f74bbf76700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000308fff8 CR3: 00000000709bf000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tls_setsockopt+0x90/0xe60 net/tls/tls_main.c:620 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 tls_setsockopt+0x128/0xe60 net/tls/tls_main.c:621 __sys_setsockopt+0x2db/0x610 net/socket.c:2173 __do_sys_setsockopt net/socket.c:2184 [inline] __se_sys_setsockopt net/socket.c:2181 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2181 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: 0033:0x4665f9 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:00007f74bbf76188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000014 RSI: 0000000000000006 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000100 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc233f8ccf R14: 00007f74bbf76300 R15: 0000000000022000 Modules linked in: ---[ end trace 7ede644508eafafa ]--- RIP: 0010:write_comp_data kernel/kcov.c:218 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x17/0x70 kernel/kcov.c:284 Code: 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 89 f1 65 48 8b 34 25 40 f0 01 00 54 f0 ff ff 84 c0 74 4b 48 8b 86 18 15 00 00 8b b6 14 15 00 00 RSP: 0018:ffffc90003090000 EFLAGS: 00010216 RAX: 0000000000000189 RBX: 1ffff92000612008 RCX: 0000000000000006 RDX: 0000000000040000 RSI: ffff88806ddc3880 RDI: 0000000000000003 RBP: ffffc900030900c8 R08: 000000000000011a R09: 0000000000000004 R10: ffffffff87c387e0 R11: 0000000000000000 R12: ffff88806f55cb00 R13: 0000000000000006 R14: 0000000000000014 R15: dffffc0000000000 FS: 00007f74bbf76700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc9000308fff8 CR3: 00000000709bf000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 30 f0 xor %dh,%al 2: 4c 89 54 d8 20 mov %r10,0x20(%rax,%rbx,8) 7: 48 89 10 mov %rdx,(%rax) a: 5b pop %rbx b: c3 retq c: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 13: 41 89 f8 mov %edi,%r8d 16: bf 03 00 00 00 mov $0x3,%edi 1b: 4c 8b 14 24 mov (%rsp),%r10 1f: 89 f1 mov %esi,%ecx 21: 65 48 8b 34 25 40 f0 mov %gs:0x1f040,%rsi 28: 01 00 * 2a: e8 54 f0 ff ff callq 0xfffff083 <-- trapping instruction 2f: 84 c0 test %al,%al 31: 74 4b je 0x7e 33: 48 8b 86 18 15 00 00 mov 0x1518(%rsi),%rax 3a: 8b b6 14 15 00 00 mov 0x1514(%rsi),%esi