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CVE-2026-31654

In the Linux kernel, the following vulnerability has been resolved: mm/vma: fix memory leak in __mmap_region() commit 605f6586ecf7 ("mm/vma: do not leak memory when .mmap_prepare swaps the file") handled the success path by skipping get_file() via file_doesnt_need_get, but missed the error path. When /dev/zero is mmap'd with MAP_SHARED, mmap_zero_prepare() calls shmem_zero_setup_desc() which allocates a new shmem file to back the mapping. If __mmap_new_vma() subsequently fails, this replaceme
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e78a3c3d8fbf02c81348e19b6dae4510442d55dbb9f94e267119efced05804e8
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":["mm/vma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"61fc8eaf2ab214b32c7bce52597c80cf0ca41ada","status":"affected","version":"605f6586ecf78395f0185ab24c368fb46a06e434","versionType":"git"},{"lessThan":"894f99eb535edc4514f756818f3c4f688ba53a59","status":"affected","version":"605f6586ecf78395f0185ab24c368fb46a06e434","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0173236dda0ab6428a5bbbc081416db354525f17c5662646237b5dcd0e68b20 · sha256:83cd34567775c513… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["mm/vma.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":"6.19.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0173236dda0ab6428a5bbbc081416db354525f17c5662646237b5dcd0e68b20 · sha256:83cd34567775c513… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/vma.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"61fc8eaf2ab214b32c7bce52597c80cf0ca41ada","status":"affected","version":"605f6586ecf78395f0185ab24c368fb46a06e434","versionType":"git"},{"lessThan":"894f99eb535edc4514f756818f3c4f688ba53a59","status":"affected","version":"605f6586ecf78395f0185ab24c368fb46a06e434","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0173236dda0ab6428a5bbbc081416db354525f17c5662646237b5dcd0e68b20 · sha256:83cd34567775c513… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/vma.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":"6.19.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f0173236dda0ab6428a5bbbc081416db354525f17c5662646237b5dcd0e68b20 · sha256:83cd34567775c513… · /containers/cna/affected/1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/61fc8eaf2ab214b32c7bce52597c80cf0ca41ada"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0173236dda0ab6428a5bbbc081416db354525f17c5662646237b5dcd0e68b20 · sha256:83cd34567775c513… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/894f99eb535edc4514f756818f3c4f688ba53a59"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f0173236dda0ab6428a5bbbc081416db354525f17c5662646237b5dcd0e68b20 · sha256:83cd34567775c513… · /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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