Messages in this thread | | | Date | Thu, 26 Jan 2012 08:04:28 -0800 | From | Casey Schaufler <> | Subject | Re: security_path hooks for xattr |
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On 1/26/2012 4:45 AM, Miklos Szeredi wrote: > Forwarding from an internal bug report: > > "AppArmor does not mediate the xattr system calls for confined processes. > > As a consequence, a confined process can cross the confinement privilege > boundary by reading or writing to extended attributes that the confined > task should not have access to. The restrictions for security and user > attributes read and write still apply according to DAC; however, this > does not comply with the claim of AppArmor to mediate fipe > operations. The use of extended attributes is very flexible, so that the > effect of a missing mediation can lead to false assumptions in > subsequent policy decisions (eCryptfs)." > > AFAIU this boils down to missing security hooks in *xattr(). > > Would it be possible to add these hooks?
Please post proposed patches to linux-security-module@vger.kernel.org
> > Thanks, > Miklos > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
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