5.5

CVE-2024-26643

netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.4.274
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.215
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.154
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.84
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.24
Linux ≫ Linux Kernel Version >= 6.7 < 6.7.12
Debian ≫ Debian Linux Version10.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.2% 0.093
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Mailing List
https://git.kernel.org/stable/c/291cca35818bd52a407bc37ab45a15816039e363
Patch
https://git.kernel.org/stable/c/406b0241d0eb598a0b330ab20ae325537d8d8163
Patch
https://git.kernel.org/stable/c/5224afbc30c3ca9ba23e752f0f138729b2c48dd8
Patch
https://git.kernel.org/stable/c/552705a3650bbf46a22b1adedc1b04181490fc36
Patch
https://git.kernel.org/stable/c/b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1
Patch
https://git.kernel.org/stable/c/d75a589bb92af1abf3b779cfcd1977ca11b27033
Patch
https://git.kernel.org/stable/c/e2d45f467096e931044f0ab7634499879d851a5c
Patch
https://git.kernel.org/stable/c/edcf1a3f182ecf8b6b805f0ce90570ea98c5f6bf
Patch
https://cert-portal.siemens.com/productcert/html/ssa-265688.html