CVE Explorer

CVE-2026-31712

In the Linux kernel, the following vulnerability has been resolved: ksmbd: require minimum ACE size in smb_check_perm_dacl() Both ACE-walk loops in smb_check_perm_dacl() only guard against an under-sized remaining buffer, not against an ACE whose declared `ace->size` is smaller than the struct it claims to describe: if (offsetof(struct smb_ace, access_req) > aces_size) break; ace_size = le16_to_cpu(ace->size); if (ace_size > aces_size) break; The first check only requires t

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:78d5b6431a58e5666a8a1b697f4a70dfc0263b433f03983b16d05b5aafb7d0fc

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/smbacl.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":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThan…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/smbacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"282cbbb476b9f35793452bc461934af4c7eca169","status":"affected","version":"e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9","versionType":"git"},{"lessThan":"f20adc4ef7428bc485ee83fd1a592252fb87718b","status":"affected","version":"e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9","versionType":"git"},{"lessThan":"325d4ac11f526cb8964cff14548ccf02d8c756d8","status":"affected","version":"e2f34481b24db2fd634b5ed…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":8.3,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions

{"url":"https://git.kernel.org/stable/c/151b1799861fde38087c08f613abc2843ef597b0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/282cbbb476b9f35793452bc461934af4c7eca169"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/325d4ac11f526cb8964cff14548ccf02d8c756d8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/90089584b2e25c4510b7b987387b4405f0673ece"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/95e5aa3c3261da8c95b27d7aecf8ee39b9f86a4c"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/d07b26f39246a82399661936dd0c853983cfade7"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/f20adc4ef7428bc485ee83fd1a592252fb87718b"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f36dd4c5dcf2b16a74e99676fee9146e338b4e953b0105d73a6e66b3ea4c91be · sha256:cf288f1ca84ba263… · /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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