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CVE-2025-68786

In the Linux kernel, the following vulnerability has been resolved: ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current i_size (including 0), the code used to call check_lock_range(filp, i_size, size - 1, WRITE), which computes `size - 1` and can underflow for size==0. Skip the equal case.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2b07dc246ca3b406671e4a2a8e9e8d8ed737e3b52da89994bbb3c782c9cbed56
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/smb/server/vfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"52fcbb92e0d3acfd1448b2a43b6595d540da5295","status":"affected","version":"f44158485826c076335d6860d35872271a83791d","versionType":"git"},{"lessThan":"da29cd197246c85c0473259f1cad897d9d28faea","status":"affected","version":"f44158485826c076335d6860d35872271a83791d","versionType":"git"},{"lessThan":"a6f4cfa3783804336491e0edcb250c25f9b59d33","status":"affected","version":"f44158485826c076335d6860d3…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/vfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.160","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.120","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.64","versionType":"semver"},{"lessThanOrEq…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/vfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"52fcbb92e0d3acfd1448b2a43b6595d540da5295","status":"affected","version":"f44158485826c076335d6860d35872271a83791d","versionType":"git"},{"lessThan":"da29cd197246c85c0473259f1cad897d9d28faea","status":"affected","version":"f44158485826c076335d6860d35872271a83791d","versionType":"git"},{"lessThan":"a6f4cfa3783804336491e0edcb250c25f9b59d33","status":"affected","version":"f44158485826c076335d6860d3…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/vfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.160","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.120","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.64","versionType":"semver"},{"lessThanOrEq…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/52fcbb92e0d3acfd1448b2a43b6595d540da5295"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/571204e4758a528fbd67330bd4b0dfbdafb33dd8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/5d510ac31626ed157d2182149559430350cf2104"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/a6f4cfa3783804336491e0edcb250c25f9b59d33"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/da29cd197246c85c0473259f1cad897d9d28faea"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d540b1f008428ed62d7e53dc8531306c9c44ef9f2c1e31e6e61428c3a24838dd · sha256:e26b16aed499c2d1… · /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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