ACK: [SRU][Jammy-OEM-5.17/OEM-6.0][PATCH 0/1] CVE-2023-3390

Stefan Bader stefan.bader at canonical.com
Fri Aug 4 08:04:13 UTC 2023


On 03.08.23 20:37, Yuxuan Luo wrote:
> [Impact]
> A use-after-free vulnerability was found in the Linux kernel's netfilter
> subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with
> NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same
> transaction causing a use-after-free vulnerability. This flaw allows a local
> attacker with user access to cause a privilege escalation issue.
> 
> [Backport]
> It is a clean cherry pick.
> 
> [Test]
> Compile and boot tested.
> 
> [Potential Regression]
> Expect low regression potential.
> 
> Pablo Neira Ayuso (1):
>    netfilter: nf_tables: incorrect error path handling with
>      NFT_MSG_NEWRULE
> 
>   net/netfilter/nf_tables_api.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 

Acked-by: Stefan Bader <stefan.bader at canonical.com>
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