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CVE-2026-46139

In the Linux kernel, the following vulnerability has been resolved: smb: client: use kzalloc to zero-initialize security descriptor buffer Commit 62e7dd0a39c2d ("smb: common: change the data type of num_aces to le16") split struct smb_acl's __le32 num_aces field into __le16 num_aces and __le16 reserved. The reserved field corresponds to Sbz2 in the MS-DTYP ACL wire format, which must be zero [1]. When building an ACL descriptor in build_sec_desc(), we are using a kmalloc()'ed descriptor buffe
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2df07f9dde4eb8506e1c5686a4b100d79891d50dce5dca6c26d55a55643423ac
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/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4c3ed344a970aad51388ac3b0145b98318f0e21f","status":"affected","version":"1593ddb37bd124c131fe635397df68e854a03108","versionType":"git"},{"lessThan":"941a1e6eb35440336913afc88a82103291956d5d","status":"affected","version":"da087905e3270e2291c0afae39a28e7d183e5ec3","versionType":"git"},{"lessThan":"be1ef9512a3f5a755895c24f31b334342f4aa15b","status":"affected","version":"62e7dd0a39c2d0d7ff0327…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4c3ed344a970aad51388ac3b0145b98318f0e21f","status":"affected","version":"1593ddb37bd124c131fe635397df68e854a03108","versionType":"git"},{"lessThan":"941a1e6eb35440336913afc88a82103291956d5d","status":"affected","version":"da087905e3270e2291c0afae39a28e7d183e5ec3","versionType":"git"},{"lessThan":"be1ef9512a3f5a755895c24f31b334342f4aa15b","status":"affected","version":"62e7dd0a39c2d0d7ff0327…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.14"},{"lessThan":"6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/affected/1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/4c3ed344a970aad51388ac3b0145b98318f0e21f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/5e489c6c47a2ac15edbaca153b9348e42c1eacab"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/941a1e6eb35440336913afc88a82103291956d5d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/9bdb2ca31368b7671949dfb94a5d57ffccd01edd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/be1ef9512a3f5a755895c24f31b334342f4aa15b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4c6a0b48fd9377ed981be776cfa212f0a1c296bbefc479843d05f91b2d00ba67 · sha256:068102f749e7a7c1… · /containers/cna/references/2

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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