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[Qemu-devel] [Bug 1726394] Re: Passes through prctl(PR_SET_SECCOMP, SECC
From: |
Thomas Huth |
Subject: |
[Qemu-devel] [Bug 1726394] Re: Passes through prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, address) |
Date: |
Thu, 15 Feb 2018 11:27:07 -0000 |
Fix has been released with QEMU 2.11:
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=a8b154a637b586441b
** Changed in: qemu
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1726394
Title:
Passes through prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, address)
Status in QEMU:
Fix Released
Status in qemu package in Ubuntu:
Fix Released
Status in qemu source package in Xenial:
Won't Fix
Status in qemu source package in Zesty:
Won't Fix
Status in qemu source package in Artful:
Won't Fix
Status in qemu package in Debian:
Confirmed
Bug description:
qemu-user passes through prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER,
address) unmodified, but the third argument is an address to a BPF
filter, causing an EFAULT. Now, the filter is architecture-specifc, so
you can't just rewrite the addresses, so the safest bet is to just
return an error here.
I guess you should just return EINVAL, but not sure. I'd really like
something that can be identified, so seccomp errors can be ignored
when it's not supported.
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- [Qemu-devel] [Bug 1726394] Re: Passes through prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, address),
Thomas Huth <=