CVE Explorer

CVE-2026-43116

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can just go away, making exp->master invalid. To access exp->master safely: - Grab the nf_conntrack_expect_lock, this gets serialized with clean_from_lists() which also holds this lock when the master conntrack goes away. - Hold reference on master conntrack via nf_conntrack_fi

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2962a784dc9566e2c94abd625df24d80a0d90b698df6a8b50e3c019a81c92c54

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/netfilter/nf_conntrack_core.h","net/netfilter/nf_conntrack_ecache.c","net/netfilter/nf_conntrack_expect.c","net/netfilter/nf_conntrack_netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"9e1196d27ef496f404c76f7a9d03761142d991c4","status":"affected","version":"c1d10adb4a521de5760112853f42aaeefcec96eb","versionType":"git"},{"lessThan":"5e1c1d22268ae710c238342c8030c21daf298168","status":"affected","version":"c1d10adb4a521de5760112853f42aaeefcec96…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/netfilter/nf_conntrack_core.h","net/netfilter/nf_conntrack_ecache.c","net/netfilter/nf_conntrack_expect.c","net/netfilter/nf_conntrack_netlink.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.16"},{"lessThan":"2.6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/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:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/metrics/0/cvssV3_1

Source references

6 source assertions

{"url":"https://git.kernel.org/stable/c/497f99b26fffdc5635706d1b4811f1ed8ee21a5b"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/5e1c1d22268ae710c238342c8030c21daf298168"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/9e1196d27ef496f404c76f7a9d03761142d991c4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/bffcaad9afdfe45d7fc777397d3b83c1e3ebffe5"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/d52fa1fa7440676b8c238037a050ab008c22737f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/f338ced0473849c9f6ed0b77ca99f1aab5826787"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:6927cb7fa8bb35137e045dfafd4ec58bcb559978c12f477ef43fd2e1bcdfa053 · sha256:f71cd8b8b92aaca7… · /containers/cna/references/3

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.

← Back to CVE Explorer