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CVE-2026-31657

In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by reference batadv_bla_add_claim() can replace claim->backbone_gw and drop the old gateway's last reference while readers still follow the pointer. The netlink claim dump path dereferences claim->backbone_gw->orig and takes claim->backbone_gw->crc_lock without pinning the underlying backbone gateway. batadv_bla_check_claim() still has the same naked pointer access pattern. Reuse bata
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:16ed4a97688255d46dfabc59f01b9885d5cd84fa2e606d7d6eab3474b158d019
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.5"},{"lessThan":"3.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.169","versionType":"sem…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5202f071b367ffbc8e279fc7a00db14f5e587f52","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"69d1ce9c72eca91203ffdb8d08bacd511100aec6","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"f4858832ddef2f39f21e30b7226bbcd3c4b2bc96","status":"affected","version":"2372138…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.5"},{"lessThan":"3.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.169","versionType":"sem…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/batman-adv/bridge_loop_avoidance.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5202f071b367ffbc8e279fc7a00db14f5e587f52","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"69d1ce9c72eca91203ffdb8d08bacd511100aec6","status":"affected","version":"23721387c409087fd3b97e274f34d3ddc0970b74","versionType":"git"},{"lessThan":"f4858832ddef2f39f21e30b7226bbcd3c4b2bc96","status":"affected","version":"2372138…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1f2dc36c297d27733f1b380ea644cf15a361bd7b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/2f55b58b5a0bbed192d60c444a45a49cdf1b545f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/4dee4c0688443aaf5bbec74aa203c851d1d53c35"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/5202f071b367ffbc8e279fc7a00db14f5e587f52"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/69d1ce9c72eca91203ffdb8d08bacd511100aec6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/7962b522222628596ca9ecc8722efc95367aadbd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/82d8701b2c930d0e96b0dbc9115a218d791cb0d2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/f4858832ddef2f39f21e30b7226bbcd3c4b2bc96"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9c758abd34055741533beaaa94a3103d6a80a8cf7336503ab5cc16317376ad82 · sha256:e7ef57e3d846b691… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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