[SRU Jammy,Lunar 0/1] CVE-2023-4244 follow up

Thadeu Lima de Souza Cascardo cascardo at canonical.com
Mon Oct 2 11:14:30 UTC 2023


[Impact]
The nftables GC can end up collecting released objects. That is still true
for the nft_set_rbtree module. This could potentially lead to a local
unprivileged user being able to escalate privileges.

[Potential regression]
nftables users can be affected.

Pablo Neira Ayuso (1):
  netfilter: nft_set_rbtree: skip sync GC for new elements in this
    transaction

 net/netfilter/nft_set_rbtree.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

-- 
2.34.1




More information about the kernel-team mailing list