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CVE-2026-64450

In the Linux kernel, the following vulnerability has been resolved: tipc: fix out-of-bounds read in broadcast Gap ACK blocks A broadcast PROTOCOL/STATE_MSG can carry a Gap ACK blocks record in its data area. tipc_get_gap_ack_blks() only verifies that the record's len field is self-consistent with its ugack_cnt/bgack_cnt counts (sz == struct_size(p, gacks, ugack_cnt + bgack_cnt)); it does not check that the record actually fits in the message data area, msg_data_sz(). The unicast caller tipc_l
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5bf028428d48e68b5cce189d4de35e6ca724c73772ef9f925903c79d3a09820c
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/tipc/bcast.c","net/tipc/bcast.h","net/tipc/node.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","ve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/tipc/bcast.c","net/tipc/bcast.h","net/tipc/node.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"055663d21dc4336f67933ab26bef3c5934be6324","status":"affected","version":"d7626b5acff9227e2a65da636a53e09bdafdc0aa","versionType":"git"},{"lessThan":"016f5995c37a5a2c45198308f830f244517d70b7","status":"affected","version":"d7626b5acff9227e2a65da636a53e09bdafdc0aa","versionType":"git"},{"lessThan":"74b45af86a767594ba52330cd440ea84e24d700d","status":"affected","ve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/tipc/bcast.c","net/tipc/bcast.h","net/tipc/node.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.8"},{"lessThan":"5.8","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","ve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/tipc/bcast.c","net/tipc/bcast.h","net/tipc/node.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"055663d21dc4336f67933ab26bef3c5934be6324","status":"affected","version":"d7626b5acff9227e2a65da636a53e09bdafdc0aa","versionType":"git"},{"lessThan":"016f5995c37a5a2c45198308f830f244517d70b7","status":"affected","version":"d7626b5acff9227e2a65da636a53e09bdafdc0aa","versionType":"git"},{"lessThan":"74b45af86a767594ba52330cd440ea84e24d700d","status":"affected","ve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/016f5995c37a5a2c45198308f830f244517d70b7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/055663d21dc4336f67933ab26bef3c5934be6324"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/2b66974a1b6134a4bbc3bfed181f7418f688eb54"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/2de42e268174766cb2e2b90721afdfdff70e0d8d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/74b45af86a767594ba52330cd440ea84e24d700d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/9a51115fcdc78687c8852bf93a1db3951dbb223b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/a21ed5064217cc33726da6c7ef1a520eba43aea1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/f333b6851bdf326fd2134133272dbbed0c94d921"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:21efd353d611191952601ca8a1c9ebc9d16ba845cb2d9abb4663e46ee17c1358 · sha256:cd4465fd63403879… · /containers/cna/references/6

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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