[PATCH] fix security_release_secctx seems broken
From: jmorris@namei.org (James Morris)
Date: 2017-10-04 22:11:17
Also in:
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From: jmorris@namei.org (James Morris)
Date: 2017-10-04 22:11:17
Also in:
lkml
On Wed, 4 Oct 2017, Konstantin Khlebnikov wrote:
Just "getcap /bin/ping" is enough to tigger leak if file has capabilities. Selinux shouldn't be loaded because its release_secctx hook call kfree.
Ahh, makes sense.
But sometimes it takes some time for kmemleak to find leak. Presumably because stale poiner stays on stack which could be reused nowdays.
Thanks for finding this! -- James Morris [off-list ref] -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html