syzbot
WARNING in handle_irq (2)
Status:
closed as dup on 2018/07/05 16:21
Subsystems:
kernel
[Documentation on labels]
Reported-by: syzbot+1ede6e178c15cdd7530c@syzkaller.appspotmail.com
First crash: 2944d, last: 2926d
Sample crash report:
random: sshd: uninitialized urandom read (32 bytes read)
IPVS: ftp: loaded support on port[0] = 21
------------[ cut here ]------------
do_IRQ(): syz-executor930 has overflown the kernel stack (cur:ffff8801aadf0000,sp:ffff8801a8dda0c0,irq stk top-bottom:ffff8801daf00080-ffff8801daf08000,exception stk top-bottom:fffffe0000038080-fffffe0000042000,ip:lock_release+0x505/0xa30)
WARNING: CPU: 1 PID: 4681 at arch/x86/kernel/irq_64.c:63 stack_overflow_check arch/x86/kernel/irq_64.c:60 [inline]
WARNING: CPU: 1 PID: 4681 at arch/x86/kernel/irq_64.c:63 handle_irq+0x1fb/0x2e7 arch/x86/kernel/irq_64.c:72
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 4681 Comm: syz-executor930 Not tainted 4.18.0-rc3+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
panic+0x238/0x4e7 kernel/panic.c:184
__warn.cold.8+0x163/0x1ba kernel/panic.c:536
report_bug+0x252/0x2d0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:178 [inline]
do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:stack_overflow_check arch/x86/kernel/irq_64.c:60 [inline]
RIP: 0010:handle_irq+0x1fb/0x2e7 arch/x86/kernel/irq_64.c:72
Code: 00 00 ff b6 80 00 00 00 48 c7 c7 40 bc e4 87 41 54 41 55 65 48 8b 04 25 40 ee 01 00 48 05 68 06 00 00 48 89 c6 e8 85 b3 1c 00 <0f> 0b 48 83 c4 18 e9 3f ff ff ff 48 89 75 e0 e8 a1 69 8f 00 48 8b
RSP: 0018:ffff8801daf07f58 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff8801ce228d80 RCX: 0000000000000000
RDX: 0000000000010000 RSI: ffffffff81631851 RDI: 0000000000000001
RBP: ffff8801daf07fb0 R08: ffff8801aaeba000 R09: ffffed003b5e3ec2
R10: ffffed003b5e3ec2 R11: ffff8801daf1f617 R12: fffffe0000042000
R13: fffffe0000038080 R14: 000000000000002a R15: 0000000000000000
do_IRQ+0x78/0x190 arch/x86/kernel/irq.c:245
common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:642
</IRQ>
Dumping ftrace buffer:
(ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..
* Struck through repros no longer work on HEAD.