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CVE-2026-45971

In the Linux kernel, the following vulnerability has been resolved: bpf: Limit bpf program signature size Practical BPF signatures are significantly smaller than KMALLOC_MAX_CACHE_SIZE Allowing larger sizes opens the door for abuse by passing excessive size values and forcing the kernel into expensive allocation paths (via kmalloc_large or vmalloc).
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:df69a0db7b3ae80c475657596ea31343b4937cdb754e1e0ab826c10f10909938
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":["kernel/bpf/syscall.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":"6.18.14","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:fc0f4da63be38a6d574d990d81421a710a14302542755fda25e6f2643d100443 · sha256:147e5a8c07796728… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/syscall.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5835a077c6f5c565d525eaca9fac01572b97a9b9","status":"affected","version":"349271568303695f0ac3563af153d2b4542f6986","versionType":"git"},{"lessThan":"eb8166c79097996396468a341de258a798789d36","status":"affected","version":"349271568303695f0ac3563af153d2b4542f6986","versionType":"git"},{"lessThan":"ea1535e28bb3773fc0b3cbd1f3842b808016990c","status":"affected","version":"349271568303695f0ac3563af…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fc0f4da63be38a6d574d990d81421a710a14302542755fda25e6f2643d100443 · sha256:147e5a8c07796728… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/syscall.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":"6.18.14","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:fc0f4da63be38a6d574d990d81421a710a14302542755fda25e6f2643d100443 · sha256:147e5a8c07796728… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/syscall.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5835a077c6f5c565d525eaca9fac01572b97a9b9","status":"affected","version":"349271568303695f0ac3563af153d2b4542f6986","versionType":"git"},{"lessThan":"eb8166c79097996396468a341de258a798789d36","status":"affected","version":"349271568303695f0ac3563af153d2b4542f6986","versionType":"git"},{"lessThan":"ea1535e28bb3773fc0b3cbd1f3842b808016990c","status":"affected","version":"349271568303695f0ac3563af…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fc0f4da63be38a6d574d990d81421a710a14302542755fda25e6f2643d100443 · sha256:147e5a8c07796728… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/5835a077c6f5c565d525eaca9fac01572b97a9b9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc0f4da63be38a6d574d990d81421a710a14302542755fda25e6f2643d100443 · sha256:147e5a8c07796728… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/ea1535e28bb3773fc0b3cbd1f3842b808016990c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc0f4da63be38a6d574d990d81421a710a14302542755fda25e6f2643d100443 · sha256:147e5a8c07796728… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/eb8166c79097996396468a341de258a798789d36"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc0f4da63be38a6d574d990d81421a710a14302542755fda25e6f2643d100443 · sha256:147e5a8c07796728… · /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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