batman-adv: bla: prevent use-after-free when deleting claims

Affected versions

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

• linux linux kernel3.5 and later · before 5.10.258
• linux linux kernel5.11 and later · before 5.15.209
• linux linux kernel5.16 and later · before 6.1.175
• linux linux kernel6.2 and later · before 6.6.140
• linux linux kernel6.7 and later · before 6.12.90
• linux linux kernel6.13 and later · before 6.18.32
• linux linux kernel6.19 and later · before 7.0.9
• linux linux kernel7.1

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

  • 3.5affected
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before 1d4b241482d9025c537afb3c7c8419c72c0e0c82affected · git
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before a1a99837bb6169cfb9187abaa2005e8f12079426affected · git
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before b88c865dcf6e9f20bfe66a360d4b62941ef769b8affected · git
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before 368449e467d5f1e2c2e987bf2bd57000ba75e10baffected · git
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before 6c5dc6d68e6ba7f0224a757a39ed52fcdb54d472affected · git
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before 00155f336a5e8b1006d2ca9ae7ad8fc4a44bb401affected · git
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before 0cc9847c64cb6e61118bc78c9187c8209a7197faaffected · git
  • 23721387c409087fd3b97e274f34d3ddc0970b74 and later · before 4ae1709a314060a196981b344610d023ea841e57affected · git
  • before 3.5not 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-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
• CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
  83Now
• CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV
  77This week
• CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV
  77This week
• CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV
  77This week

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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.