ACK: [SRU K,HWE-5.17,J,OEM-5.14,F,B 0/1] CVE-2022-3524

[Cengiz Can]

On Wed, 2022-11-16 at 22:08 -0300, Thadeu Lima de Souza Cascardo wrote:
> [Impact]
> A race condition between setsockopt(IPV6_ADDRFORM) and setsockopt(IPV6_DSTOPTS)
> may lead to a memory leak. A local attacker could use this to cause a denial of service.
> 
> [Backport]
> A single conflict was fixed for all versions. release_sock has been replaced
> by sockopt_release_sock upstream, which introduces a new support for BPF
> calling setsockopt. So, not something we should backport under risk of regressions.
> 
> [Potential regression]
> Programs using setsockopt and mixing IPv6 and IPv4 sockets might fail.
> 
> Kuniyuki Iwashima (1):
>   tcp/udp: Fix memory leak in ipv6_renew_options().

Acked-by: Cengiz Can <cengiz.can at canonical.com>

> 
>  net/ipv6/ipv6_sockglue.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> -- 
> 2.34.1
> 
>