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CVE-2026-23048

In the Linux kernel, the following vulnerability has been resolved: udp: call skb_orphan() before skb_attempt_defer_free() Standard UDP receive path does not use skb->destructor. But skmsg layer does use it, since it calls skb_set_owner_sk_safe() from udp_read_skb(). This then triggers this warning in skb_attempt_defer_free(): DEBUG_NET_WARN_ON_ONCE(skb->destructor); We must call skb_orphan() to fix this issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:098f9214c0efdccf46cd36e94da7981672b8303f2ae6e035d2d702bc26ae80e5
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/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5d969975b4a3fc5add76ac16f3efae399ef45f2e655894e52dc76e8e179b73a9 · sha256:d4586cd9693e141f… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0c63d5683eae6a7b4d81382bcbecb2a19feff90d","status":"affected","version":"6471658dc66c670580a7616e75f51b52917e7883","versionType":"git"},{"lessThan":"e5c8eda39a9fc1547d1398d707aa06c1d080abdd","status":"affected","version":"6471658dc66c670580a7616e75f51b52917e7883","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5d969975b4a3fc5add76ac16f3efae399ef45f2e655894e52dc76e8e179b73a9 · sha256:d4586cd9693e141f… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.19","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5d969975b4a3fc5add76ac16f3efae399ef45f2e655894e52dc76e8e179b73a9 · sha256:d4586cd9693e141f… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv4/udp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0c63d5683eae6a7b4d81382bcbecb2a19feff90d","status":"affected","version":"6471658dc66c670580a7616e75f51b52917e7883","versionType":"git"},{"lessThan":"e5c8eda39a9fc1547d1398d707aa06c1d080abdd","status":"affected","version":"6471658dc66c670580a7616e75f51b52917e7883","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5d969975b4a3fc5add76ac16f3efae399ef45f2e655894e52dc76e8e179b73a9 · sha256:d4586cd9693e141f… · /containers/cna/affected/0

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/0c63d5683eae6a7b4d81382bcbecb2a19feff90d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5d969975b4a3fc5add76ac16f3efae399ef45f2e655894e52dc76e8e179b73a9 · sha256:d4586cd9693e141f… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/e5c8eda39a9fc1547d1398d707aa06c1d080abdd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5d969975b4a3fc5add76ac16f3efae399ef45f2e655894e52dc76e8e179b73a9 · sha256:d4586cd9693e141f… · /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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