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CVE-2026-45929

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix possible use-after-free in ovpn_net_xmit When building the skb_list in ovpn_net_xmit, skb_share_check will free the original skb if it is shared. The current implementation continues to use the stale skb pointer for subsequent operations: - peer lookup, - skb_dst_drop (even though all segments produced by skb_gso_segment will have a dst attached), - ovpn_peer_stats_increment_tx. Fix this by moving the peer lookup
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0db0a25367fe6aba445f55db98f5ce9a67407906f7bc1d9e961b62be6846286b
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":["drivers/net/ovpn/io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ovpn/io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e4fbcb4e078915367ba5576cd70d76dbc970f95","status":"affected","version":"08857b5ec5d91d83e69e40a36554a8c7557b7301","versionType":"git"},{"lessThan":"442915c96a9bff1c7080e2aedabb1c03faa28d81","status":"affected","version":"08857b5ec5d91d83e69e40a36554a8c7557b7301","versionType":"git"},{"lessThan":"a5ec7baa44ea3a1d6aa0ca31c0ad82edf9affe41","status":"affected","version":"08857b5ec5d91d83e69e40a3…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ovpn/io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ovpn/io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e4fbcb4e078915367ba5576cd70d76dbc970f95","status":"affected","version":"08857b5ec5d91d83e69e40a36554a8c7557b7301","versionType":"git"},{"lessThan":"442915c96a9bff1c7080e2aedabb1c03faa28d81","status":"affected","version":"08857b5ec5d91d83e69e40a36554a8c7557b7301","versionType":"git"},{"lessThan":"a5ec7baa44ea3a1d6aa0ca31c0ad82edf9affe41","status":"affected","version":"08857b5ec5d91d83e69e40a3…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /containers/cna/affected/0

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:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/3e4fbcb4e078915367ba5576cd70d76dbc970f95"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/442915c96a9bff1c7080e2aedabb1c03faa28d81"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/a5ec7baa44ea3a1d6aa0ca31c0ad82edf9affe41"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:495dc1e3c4000c1025d9540939b9ba9113fec528e12de6e00ae26401ea9ba19f · sha256:c8bc40c5d99f3606… · /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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