xsk: Free skb when TX metadata options are invalid (Linux Linux)

CVE-2024-53236
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.21 % · percentile 10 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: xsk: Free skb when TX metadata options are invalid When a new skb is allocated for transmitting an xsk descriptor, i.e., for every non-multibuf descriptor or the first frag of a multibuf descriptor, but the descriptor is later found to have invalid options set for the TX metadata, the new skb is never freed. This can leak skbs until the send buffer is full which makes sending more packets impossible. Fix this by freeing the skb in the error path if we are currently dealing with the first frag, i.e., an skb allocated in this iteration of xsk_build_skb.

Weaknesses (CWE)

  • CWE-401 — Missing Release of Memory after Effective Lifetime

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 48eb03dd26304c24f03bdbb9382e89c8564e71df < 7f0d0dd5a7f437d83cff954bc321f1a9b181efd5 ; affected 48eb03dd26304c24f03bdbb9382e89c8564e71df < d5d346deb65efa8453f8481bcea75c1a590439e7 ; affected 48eb03dd26304c24f03bdbb9382e89c8564e71df < 0c0d0f42ffa6ac94cd79893b7ed419c15e1b45de
Linux · Linuxaffected 6.8 ; unaffected 0 < 6.8 ; unaffected 6.11.11 ≤ 6.11.* ; unaffected 6.12.2 ≤ 6.12.* ; unaffected 6.13 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD