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CVE-2026-46320

In the Linux kernel, the following vulnerability has been resolved: tap: free page on error paths in tap_get_user_xdp() tap_get_user_xdp() rejects a frame shorter than ETH_HLEN with -EINVAL, and returns -ENOMEM when build_skb() fails. Both paths jump to the err label without freeing the page that vhost_net_build_xdp() allocated for the frame. tap_sendmsg() discards the per-buffer return value and always returns 0, so vhost_tx_batch() takes the success path and never frees the page; each reject
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:47664598ecdeb993a852ab1c3fad6805f69c877ae10ee985222ee66806581ad9
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/tap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrE…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/tap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8d03e65eb6cfbffec471a6b65416f93679bf3286","status":"affected","version":"0efac27791ee068075d80f07c55a229b1335ce12","versionType":"git"},{"lessThan":"f979971835dddbca86cf99e3b2e2b94a408a1ab2","status":"affected","version":"0efac27791ee068075d80f07c55a229b1335ce12","versionType":"git"},{"lessThan":"3f52a86a482a69294c50a5a2a097bd6f4104990a","status":"affected","version":"0efac27791ee068075d80f07c55a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/tap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrE…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/tap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8d03e65eb6cfbffec471a6b65416f93679bf3286","status":"affected","version":"0efac27791ee068075d80f07c55a229b1335ce12","versionType":"git"},{"lessThan":"f979971835dddbca86cf99e3b2e2b94a408a1ab2","status":"affected","version":"0efac27791ee068075d80f07c55a229b1335ce12","versionType":"git"},{"lessThan":"3f52a86a482a69294c50a5a2a097bd6f4104990a","status":"affected","version":"0efac27791ee068075d80f07c55a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.4,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/18a84c35842e19cd3c5534d8cee73d31863f696d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/3bcf7aec6a9d16438f2cec29f5d7c8d5b8edf9b2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/3f52a86a482a69294c50a5a2a097bd6f4104990a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/8d03e65eb6cfbffec471a6b65416f93679bf3286"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/d30aac0fa00ca0afc3e08174cf7f974a66bdcf05"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/d68eab61944a9b0826fa2e954e42db1aa3201b7a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/e27c17346628cb56843a83f93ac63c314c00f388"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/f979971835dddbca86cf99e3b2e2b94a408a1ab2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb4b3b5e8db770faac539dd2afed74e1dec4ee98e9d1309a4184d88ca94ad84c · sha256:a051972d98893c6e… · /containers/cna/references/1

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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