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CVE-2026-64146

In the Linux kernel, the following vulnerability has been resolved: erofs: fix metabuf leak in inode xattr initialization commit bb88e8da0025 ("erofs: use meta buffers for xattr operations") converted xattr operations to use on-stack erofs_buf instances. erofs_init_inode_xattrs() uses such a metabuf while reading the inline xattr header and shared xattr id array. Some error paths after erofs_read_metabuf() leave through out_unlock without dropping the metabuf, so the folio reference can leak.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:350070ec5c2b39d60fac4ed034ce896eee040a83b7051d7587c6b891253a9010
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/erofs/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"492c73b21fefa36f3869cb2b188ffb7fe37b3a9b","status":"affected","version":"bb88e8da00253bea0e7f0f4cdfd7910572d7799f","versionType":"git"},{"lessThan":"79b09c54c6563df9846ca3094bcfd72082c3e1d7","status":"affected","version":"bb88e8da00253bea0e7f0f4cdfd7910572d7799f","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d6f2153cef4271dbb3c5ec4e82eecff3a9dc6b6901526cdad46fae0f27e03fc9 · sha256:7ae648c18e723c28… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/erofs/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d6f2153cef4271dbb3c5ec4e82eecff3a9dc6b6901526cdad46fae0f27e03fc9 · sha256:7ae648c18e723c28… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/erofs/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"492c73b21fefa36f3869cb2b188ffb7fe37b3a9b","status":"affected","version":"bb88e8da00253bea0e7f0f4cdfd7910572d7799f","versionType":"git"},{"lessThan":"79b09c54c6563df9846ca3094bcfd72082c3e1d7","status":"affected","version":"bb88e8da00253bea0e7f0f4cdfd7910572d7799f","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d6f2153cef4271dbb3c5ec4e82eecff3a9dc6b6901526cdad46fae0f27e03fc9 · sha256:7ae648c18e723c28… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/erofs/xattr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.17"},{"lessThan":"5.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d6f2153cef4271dbb3c5ec4e82eecff3a9dc6b6901526cdad46fae0f27e03fc9 · sha256:7ae648c18e723c28… · /containers/cna/affected/1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/492c73b21fefa36f3869cb2b188ffb7fe37b3a9b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d6f2153cef4271dbb3c5ec4e82eecff3a9dc6b6901526cdad46fae0f27e03fc9 · sha256:7ae648c18e723c28… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/79b09c54c6563df9846ca3094bcfd72082c3e1d7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d6f2153cef4271dbb3c5ec4e82eecff3a9dc6b6901526cdad46fae0f27e03fc9 · sha256:7ae648c18e723c28… · /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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