WARNING: CPU: 12 PID: 16862 at ./arch/x86/include/asm/thread_info.h:236

From: Sasha Levin
Date: Mon Nov 30 2015 - 11:21:24 EST


Hi all,

I've hit the following while fuzzing with trinity on the latest -next kernel:

[ 587.536319] WARNING: CPU: 12 PID: 16862 at ./arch/x86/include/asm/thread_info.h:236 sigsuspend+0x194/0x1b0()
[ 587.540863] Modules linked in:
[ 587.541742] CPU: 12 PID: 16862 Comm: trinity-c421 Not tainted 4.4.0-rc2-next-20151127-sasha-00011-g1ca161c-dirty #2660
[ 587.543554] 0000000000000000 000000002c914859 ffff8806e3347e38 ffffffff9ea923db
[ 587.545672] 0000000000000000 ffff8800c8032000 ffffffffa64a5120 ffff8806e3347e78
[ 587.547042] ffffffff9d2e00d9 ffffffff9d307334 ffffffffa64a5120 00000000000000ec
[ 587.549585] Call Trace:
[ 587.550261] [<ffffffff9ea923db>] dump_stack+0x72/0xb7
[ 587.551125] [<ffffffff9d2e00d9>] warn_slowpath_common+0x109/0x130
[ 587.553088] [<ffffffff9d2e0329>] warn_slowpath_null+0x29/0x30
[ 587.554164] [<ffffffff9d307334>] sigsuspend+0x194/0x1b0
[ 587.555116] [<ffffffff9d30b47b>] SyS_rt_sigsuspend+0xbb/0x110
[ 587.561511] [<ffffffffa61fbbd5>] entry_SYSCALL_64_fastpath+0x35/0x99
[ 587.563289] ---[ end trace 76d0b7c8c18c2a7d ]---


Thanks,
Sasha
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