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CVE-2026-43107

In the Linux kernel, the following vulnerability has been resolved: xfrm: account XFRMA_IF_ID in aevent size calculation xfrm_get_ae() allocates the reply skb with xfrm_aevent_msgsize(), then build_aevent() appends attributes including XFRMA_IF_ID when x->if_id is set. xfrm_aevent_msgsize() does not include space for XFRMA_IF_ID. For states with if_id, build_aevent() can fail with -EMSGSIZE and hit BUG_ON(err < 0) in xfrm_get_ae(), turning a malformed netlink interaction into a kernel panic.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a1440e580c6739c5f60f87242f2073aaf62c1949adc63fa90c4cf722469aae5c
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":"unaffected","product":"Linux","programFiles":["net/xfrm/xfrm_user.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2c41283d94af943a05f7f2cc1a01f0c872f3cf43","status":"affected","version":"7e6526404adedf079279aa7aa11722deaca8fe2e","versionType":"git"},{"lessThan":"e62e322ea20be78e346e4b49f9a6b9f03313af4c","status":"affected","version":"7e6526404adedf079279aa7aa11722deaca8fe2e","versionType":"git"},{"lessThan":"58e5735d1a5373652f405a0c16e54ac04aaab0ad","status":"affected","version":"7e6526404adedf079279aa7aa…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/xfrm/xfrm_user.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.83","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/xfrm/xfrm_user.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2c41283d94af943a05f7f2cc1a01f0c872f3cf43","status":"affected","version":"7e6526404adedf079279aa7aa11722deaca8fe2e","versionType":"git"},{"lessThan":"e62e322ea20be78e346e4b49f9a6b9f03313af4c","status":"affected","version":"7e6526404adedf079279aa7aa11722deaca8fe2e","versionType":"git"},{"lessThan":"58e5735d1a5373652f405a0c16e54ac04aaab0ad","status":"affected","version":"7e6526404adedf079279aa7aa…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/xfrm/xfrm_user.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.83","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /containers/cna/affected/1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/2c41283d94af943a05f7f2cc1a01f0c872f3cf43"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/58e5735d1a5373652f405a0c16e54ac04aaab0ad"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/7081d46d32312f1a31f0e0e99c6835a394037599"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/e62e322ea20be78e346e4b49f9a6b9f03313af4c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:92891b594f33e4d2919be0275f9390001c99584f8cb7c89c7427f6fb94562d74 · sha256:0f13955a1fc676f9… · /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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