__do_sys_ppoll fs/select.c:1121 [inline]
__se_sys_ppoll+0x5c4/0x6b0 fs/select.c:1101
CPU: 0 PID: 3047 Comm: dhcpcd Not tainted 5.18.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
=====================================================
Disabling lock debugging due to kernel taint
Kernel panic - not syncing: kmsan.panic set ...
CPU: 0 PID: 3047 Comm: dhcpcd Tainted: G B 5.18.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1ff/0x28e lib/dump_stack.c:106
dump_stack+0x25/0x28 lib/dump_stack.c:113
panic+0x4fe/0xc73 kernel/panic.c:250
kmsan_report+0x2e6/0x2f0 mm/kmsan/report.c:208
__msan_warning+0x94/0x110 mm/kmsan/instrumentation.c:252
__preempt_count_add arch/x86/include/asm/preempt.h:80 [inline]
preempt_count_add+0x1b5/0x320 kernel/sched/core.c:5532
sysvec_reschedule_ipi+0x1c/0x110 arch/x86/kernel/smp.c:225
asm_sysvec_reschedule_ipi+0x12/0x20
RIP: 0010:__msan_metadata_ptr_for_store_8+0x30/0x40 mm/kmsan/instrumentation.c:77
Code: 83 ec 10 9c 8f 45 e8 0f 01 ca 48 8b 5d e8 be 08 00 00 00 ba 01 00 00 00 e8 9d 1f 00 00 48 89 5d f0 ff 75 f0 9d 48 83 c4 10 5b <5d> c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 48 89 e5 41 57
RSP: 0018:ffff88811cb6b3c0 EFLAGS: 00000286
RAX: ffff88811c36b660 RBX: 0000000005d10000 RCX: 000000000058e517
RDX: ffff88811c76b660 RSI: 00000000058f9170 RDI: ffffea000000000f
RBP: ffff88811cb6b3c0 R08: 0000000000000000 R09: ffff88811cb6c001
R10: ffff88811cb6bd00 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8275d3a5 R15: ffff88811cb6b660
update_stack_state+0x859/0xa60 arch/x86/kernel/unwind_frame.c:243
unwind_next_frame+0x6d0/0xe50 arch/x86/kernel/unwind_frame.c:304
arch_stack_walk+0x320/0x3c0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1a0 kernel/stacktrace.c:122
kmsan_save_stack_with_flags mm/kmsan/core.c:80 [inline]
kmsan_internal_chain_origin+0xac/0x120 mm/kmsan/core.c:252
kmsan_internal_memmove_metadata+0x201/0x350 mm/kmsan/core.c:163
__msan_memcpy+0x65/0x90 mm/kmsan/instrumentation.c:145
sock_write_iter+0x109/0x690 net/socket.c:1048
do_iter_readv_writev+0x90c/0xb00
do_iter_write+0x52c/0x1500 fs/read_write.c:852
vfs_writev fs/read_write.c:925 [inline]
do_writev+0x645/0xe00 fs/read_write.c:968
__do_sys_writev fs/read_write.c:1041 [inline]
__se_sys_writev fs/read_write.c:1038 [inline]
__x64_sys_writev+0xe5/0x120 fs/read_write.c:1038
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f592fef81c3
Code: 8b 15 b9 9c 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 14 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 89 54 24 1c 48
RSP: 002b:00007fff86140a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007fff86140c98 RCX: 00007f592fef81c3
RDX: 0000000000000004 RSI: 00007fff86140a10 RDI: 000000000000000a
RBP: 000056310cdf5120 R08: 000000000000000a R09: 00007fff86140a40
R10: 00007fff86140a48 R11: 0000000000000246 R12: 000056310b0ce5ae
R13: 00000000000001cc R14: 0000000000000000 R15: 0000000000000000
</TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
0: 83 ec 10 sub $0x10,%esp
3: 9c pushfq
4: 8f 45 e8 popq -0x18(%rbp)
7: 0f 01 ca clac
a: 48 8b 5d e8 mov -0x18(%rbp),%rbx
e: be 08 00 00 00 mov $0x8,%esi
13: ba 01 00 00 00 mov $0x1,%edx
18: e8 9d 1f 00 00 callq 0x1fba
1d: 48 89 5d f0 mov %rbx,-0x10(%rbp)
21: ff 75 f0 pushq -0x10(%rbp)
24: 9d popfq
25: 48 83 c4 10 add $0x10,%rsp
29: 5b pop %rbx
* 2a: 5d pop %rbp <-- trapping instruction
2b: c3 retq
2c: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
33: 00 00 00
36: 0f 1f 40 00 nopl 0x0(%rax)
3a: 55 push %rbp
3b: 48 89 e5 mov %rsp,%rbp
3e: 41 57 push %r15