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google / kmsan

KernelMemorySanitizer, a detector of uses of uninitialized memory in the Linux kernel
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igmp: reset buf before any memory access #82

Closed mudongliang closed 3 years ago

mudongliang commented 3 years ago

My own fork of KMSAN cannot test with syzbot. So I try to push it to the google/kmsan

KMSAN bugs can only be tested on https://github.com/google/kmsan.git tree because KMSAN tool is not upstreamed yet.

[1] https://syzkaller.appspot.com/bug?id=a84ac404cf07db753e289b918981964b540359bd

ramosian-glider commented 3 years ago

Sorry, what problem are you trying to solve by pushing this to KMSAN? Shouldn't this be fixed upstream instead?

dvyukov commented 3 years ago

KMSAN bugs can only be tested on https://github.com/google/kmsan.git tree because KMSAN tool is not upstreamed yet. See https://goo.gl/tpsmEJ#kmsan-bugs for details.

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Please see this link for how to test fixes for KMSAN bugs using syzbot. Or, of course, you can test locally as well.

mudongliang commented 3 years ago

I know this should be not the right place to post. However, I cannot test KMSAN-instrumented kernel locally as there is a massive amount of dmesg from KMSAN, which forbids the useful dmesg