In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout
While the rhashtable set gc runs asynchronously, a race allows it to
collect elements from anonymous sets with timeouts while it is being
released from the commit path.
Mingi Cho originally reported this issue in a different path in 6.1.x
with a pipapo set with low timeouts which is not possible upstream since
7395dfacfff6 (“netfilter: nf_tables: use timestamp to check for set
element timeout”).
Fix this by setting on the dead flag for anonymous sets to skip async gc
in this case.
According to 08e4c8c5919f (“netfilter: nf_tables: mark newset as dead on
transaction abort”), Florian plans to accelerate abort path by releasing
objects via workqueue, therefore, this sets on the dead flag for abort
path too.
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"versions": [
{
"version": "8da1b048f9a5",
"lessThan": "d75a589bb92a",
"status": "affected",
"versionType": "git"
},
{
"version": "bbdb3b65aa91",
"lessThan": "edcf1a3f182e",
"status": "affected",
"versionType": "git"
},
{
"version": "448be0774882",
"lessThan": "e2d45f467096",
"status": "affected",
"versionType": "git"
},
{
"version": "d19e8bf3ea41",
"lessThan": "291cca35818b",
"status": "affected",
"versionType": "git"
},
{
"version": "ea3eb9f2192e",
"lessThan": "406b0241d0eb",
"status": "affected",
"versionType": "git"
},
{
"version": "5f68718b34a5",
"lessThan": "b2d6f9a5b1cf",
"status": "affected",
"versionType": "git"
},
{
"version": "5f68718b34a5",
"lessThan": "5224afbc30c3",
"status": "affected",
"versionType": "git"
},
{
"version": "5f68718b34a5",
"lessThan": "552705a3650b",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"versions": [
{
"version": "6.5",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.5",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.274",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.215",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.154",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.84",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.24",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.7.12",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/291cca35818bd52a407bc37ab45a15816039e363
git.kernel.org/stable/c/406b0241d0eb598a0b330ab20ae325537d8d8163
git.kernel.org/stable/c/5224afbc30c3ca9ba23e752f0f138729b2c48dd8
git.kernel.org/stable/c/552705a3650bbf46a22b1adedc1b04181490fc36
git.kernel.org/stable/c/b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1
git.kernel.org/stable/c/d75a589bb92af1abf3b779cfcd1977ca11b27033
git.kernel.org/stable/c/e2d45f467096e931044f0ab7634499879d851a5c
git.kernel.org/stable/c/edcf1a3f182ecf8b6b805f0ce90570ea98c5f6bf
lists.debian.org/debian-lts-announce/2024/06/msg00017.html