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CVE-2026-43489

In the Linux kernel, the following vulnerability has been resolved: liveupdate: luo_file: remember retrieve() status LUO keeps track of successful retrieve attempts on a LUO file. It does so to avoid multiple retrievals of the same file. Multiple retrievals cause problems because once the file is retrieved, the serialized data structures are likely freed and the file is likely in a very different state from what the code expects. The retrieve boolean in struct luo_file keeps track of this,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f5f43ded0fa33d498b011c65ba1da6a6789966c655064da2678f726ffed366f5
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":["include/linux/liveupdate.h","kernel/liveupdate/luo_file.c","mm/memfd_luo.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fc0a29132ff04b21f97a96bfb8d2a5f09637aaf268301f56b0ff9003073bec24 · sha256:e85bc639f01c565e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/liveupdate.h","kernel/liveupdate/luo_file.c","mm/memfd_luo.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1d3ad69484dc1cc53be62d2554e7ef038a627af9","status":"affected","version":"7c722a7f44e0c1f9714084152226bc7bd644b7e3","versionType":"git"},{"lessThan":"f85b1c6af5bc3872f994df0a5688c1162de07a62","status":"affected","version":"7c722a7f44e0c1f9714084152226bc7bd644b7e3","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fc0a29132ff04b21f97a96bfb8d2a5f09637aaf268301f56b0ff9003073bec24 · sha256:e85bc639f01c565e… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/liveupdate.h","kernel/liveupdate/luo_file.c","mm/memfd_luo.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fc0a29132ff04b21f97a96bfb8d2a5f09637aaf268301f56b0ff9003073bec24 · sha256:e85bc639f01c565e… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/liveupdate.h","kernel/liveupdate/luo_file.c","mm/memfd_luo.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1d3ad69484dc1cc53be62d2554e7ef038a627af9","status":"affected","version":"7c722a7f44e0c1f9714084152226bc7bd644b7e3","versionType":"git"},{"lessThan":"f85b1c6af5bc3872f994df0a5688c1162de07a62","status":"affected","version":"7c722a7f44e0c1f9714084152226bc7bd644b7e3","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fc0a29132ff04b21f97a96bfb8d2a5f09637aaf268301f56b0ff9003073bec24 · sha256:e85bc639f01c565e… · /containers/cna/affected/0

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/1d3ad69484dc1cc53be62d2554e7ef038a627af9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc0a29132ff04b21f97a96bfb8d2a5f09637aaf268301f56b0ff9003073bec24 · sha256:e85bc639f01c565e… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/f85b1c6af5bc3872f994df0a5688c1162de07a62"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fc0a29132ff04b21f97a96bfb8d2a5f09637aaf268301f56b0ff9003073bec24 · sha256:e85bc639f01c565e… · /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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