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CVE-2026-31738

In the Linux kernel, the following vulnerability has been resolved: vxlan: validate ND option lengths in vxlan_na_create vxlan_na_create() walks ND options according to option-provided lengths. A malformed option can make the parser advance beyond the computed option span or use a too-short source LLADDR option payload. Validate option lengths against the remaining NS option area before advancing, and only read source LLADDR when the option is large enough for an Ethernet address.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:140844a4471655bf8c3d23f54dbc68c935f6d0f7dba8d87a4447a5e2ee190904
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":["drivers/net/vxlan/vxlan_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"901c1dd3bab2955d7e664f914c374c8c3ac2b958","status":"affected","version":"4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa","versionType":"git"},{"lessThan":"e476745917a1e288eb15e7ff49d286a86a4861d3","status":"affected","version":"4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa","versionType":"git"},{"lessThan":"2029712fb2c87e9a8c75094906f2ee29bf08c500","status":"affected","version":"4b29dba9c085a4f…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/vxlan/vxlan_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.14"},{"lessThan":"3.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/vxlan/vxlan_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"901c1dd3bab2955d7e664f914c374c8c3ac2b958","status":"affected","version":"4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa","versionType":"git"},{"lessThan":"e476745917a1e288eb15e7ff49d286a86a4861d3","status":"affected","version":"4b29dba9c085a4fb79058fb1c45a2f6257ca3dfa","versionType":"git"},{"lessThan":"2029712fb2c87e9a8c75094906f2ee29bf08c500","status":"affected","version":"4b29dba9c085a4f…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/vxlan/vxlan_core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.14"},{"lessThan":"3.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/2029712fb2c87e9a8c75094906f2ee29bf08c500"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/602596c69a70e50d9ab8c6ae0290a01f88229dd7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/901c1dd3bab2955d7e664f914c374c8c3ac2b958"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/afa9a05e6c4971bd5586f1b304e14d61fb3d9385"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/b69c4236255bd8de16cd876e58c6f0867d1d78b1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/de20d2e3b9179d132f5f5b44e490d7c916c6321b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/e476745917a1e288eb15e7ff49d286a86a4861d3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/eddfce70a6f3107d1679b0c2fcbeb96b593bd679"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9605d12f1304839b08bf37cd8db44f156023e64b43928400716b8d8c855db75 · sha256:989103892950e06b… · /containers/cna/references/5

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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