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CVE-2026-23156

In the Linux kernel, the following vulnerability has been resolved: efivarfs: fix error propagation in efivar_entry_get() efivar_entry_get() always returns success even if the underlying __efivar_entry_get() fails, masking errors. This may result in uninitialized heap memory being copied to userspace in the efivarfs_file_read() path. Fix it by returning the error from __efivar_entry_get().
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d131c18b3ad996ff2d884cd5a234cd3cb1b20c28ccc4cca6e980a824f4781e71
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":["fs/efivarfs/vars.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3960f1754664661a970dc9ebbab44ff93a0b4c42","status":"affected","version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","versionType":"git"},{"lessThan":"510a16f1c5c1690b33504052bc13fbc2772c23f8","status":"affected","version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","versionType":"git"},{"lessThan":"89b8ca709eeeabcc11ebba64806677873a2787a8","status":"affected","version":"2d82e6227ea189c0589e7383a36…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/efivarfs/vars.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.0"},{"lessThan":"6.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.162","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.123","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.69","versionType":"semver"},{"lessThanOrEqual…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/efivarfs/vars.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3960f1754664661a970dc9ebbab44ff93a0b4c42","status":"affected","version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","versionType":"git"},{"lessThan":"510a16f1c5c1690b33504052bc13fbc2772c23f8","status":"affected","version":"2d82e6227ea189c0589e7383a36616ac2a2d248c","versionType":"git"},{"lessThan":"89b8ca709eeeabcc11ebba64806677873a2787a8","status":"affected","version":"2d82e6227ea189c0589e7383a36…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/efivarfs/vars.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.0"},{"lessThan":"6.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.162","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.123","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.69","versionType":"semver"},{"lessThanOrEqual…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9b074dd30e5b1df238499aef1522bac8c8075d2b09910b3620a998fd0fb0a9f8 · sha256:e789203302d0a2c4… · /containers/cna/references/3

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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