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CVE-2026-45859

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation Ulrich reports a regression with nfqueue: If an application did not set the 'F_GSO' capability flag and a gso packet with an unconfirmed nf_conn entry is received all packets are now dropped instead of queued, because the check happens after skb_gso_segment(). In that case, we did have exclusive ownership of the skb and its associated conntrack entry
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8ac18ff5e28156755d88db228427a1734dbc23e6cd582eb522a9bcee92a9085c
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":["include/net/netfilter/nf_queue.h","net/netfilter/nfnetlink_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/netfilter/nf_queue.h","net/netfilter/nfnetlink_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"79b713ef4261a8ead96af4703f89d0b5f25532e2","status":"affected","version":"7d8dc1c7be8d3509e8f5164dd5df64c8e34d7eeb","versionType":"git"},{"lessThan":"23901aa6b8a2f294c4b774436b4691f3ff863a8f","status":"affected","version":"7d8dc1c7be8d3509e8f5164dd5df64c8e34d7eeb","versionType":"git"},{"lessThan":"b740e7ddd7ca0dbfeafca3f5e52717206cf28524","status":"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["include/net/netfilter/nf_queue.h","net/netfilter/nfnetlink_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/net/netfilter/nf_queue.h","net/netfilter/nfnetlink_queue.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"79b713ef4261a8ead96af4703f89d0b5f25532e2","status":"affected","version":"7d8dc1c7be8d3509e8f5164dd5df64c8e34d7eeb","versionType":"git"},{"lessThan":"23901aa6b8a2f294c4b774436b4691f3ff863a8f","status":"affected","version":"7d8dc1c7be8d3509e8f5164dd5df64c8e34d7eeb","versionType":"git"},{"lessThan":"b740e7ddd7ca0dbfeafca3f5e52717206cf28524","status":"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/207b3ebacb6113acaaec0d171d5307032c690004"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/23901aa6b8a2f294c4b774436b4691f3ff863a8f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/79b713ef4261a8ead96af4703f89d0b5f25532e2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/b740e7ddd7ca0dbfeafca3f5e52717206cf28524"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b7a3aee14a87f1cb01a350a1addab3eb83ad75643233756f484b399e3237769b · sha256:ff3debe4659e91bd… · /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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