CVE-2024-50257: netfilter: Fix use-after-free in get_info()

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernel5.15 and later · before 5.15.171
• linux linux kernel5.16 and later · before 6.1.116
• linux linux kernel6.2 and later · before 6.6.60
• linux linux kernel6.7 and later · before 6.11.7
• linux linux kernel6.12

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Linux

  • 5.15affected
  • fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 and later · before ba22ea01348384df19cc1fabc7964be6e7189749affected · git
  • fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 and later · before cb7c388b5967946f097afdb759b7c860305f2d96affected · git
  • fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 and later · before 6a1f088f9807f5166f58902d26246d0b88da03a8affected · git
  • fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 and later · before bab3bb35c03b263c486833d50d50c081d9e9832baffected · git
  • fdacd57c79b79a03c7ca88f706ad9fb7b46831c1 and later · before f48d258f0ac540f00fa617dac496c4c18b5dc2faaffected · git
  • before 5.15not affected · semver
  • 5.15.171 and later · up to and including 5.15.*not affected · semver
  • 6.1.116 and later · up to and including 6.1.*not affected · semver
  • 6.6.60 and later · up to and including 6.6.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
  90Now
• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now

Published before and after this one in the same product

• ← EarlierCVE-2024-50255Nov 9, 2024 · Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs
  22Monitor
• ← EarlierCVE-2024-50256Nov 9, 2024 · netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
  22Monitor
• Later →CVE-2024-50258Nov 9, 2024 · net: fix crash when config small gso_max_size/gso_ipv4_max_size
  22Monitor

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1free(dev->buf);2/* ... another thread is still running ... */3process(dev->buf);

1lock(&dev->lock);2free(dev->buf);3dev->buf = NULL;4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.