Messages in this thread | | | Date | Tue, 28 Nov 2017 21:06:06 -0800 | From | Eric Biggers <> | Subject | Re: WARNING: suspicious RCU usage (3) |
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On Tue, Nov 28, 2017 at 01:30:26PM -0800, Andrew Morton wrote: > > It looks like blkcipher_walk_done() passed a bad address to kfree(). >
Indeed, it's freeing uninitialized memory because the Salsa20 algorithms are using the blkcipher_walk API incorrectly. I've sent a patch to fix it:
"crypto: salsa20 - fix blkcipher_walk API usage"
I am not sure why the bug reports show up as "suspicious RCU usage", though.
There were also a few other syzbot reports of this same underlying bug; I marked them as duplicates of this one.
Eric
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