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CVE-2026-64381

In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix next buffer leak in receive_encrypted_standard() receive_encrypted_standard() allocates next_buffer before checking whether the number of compound PDUs already reached MAX_COMPOUND. If the limit check fails, the function returns immediately and the newly allocated next_buffer is not assigned to server->smallbuf/server->bigbuf, making it leaked. Move the MAX_COMPOUND check before allocating next_buffer.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0494abc18651bd89c38d7c6bd54d6b736c2d6189a3fc001f69da442890182aa8
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":"affected","product":"Linux","programFiles":["fs/smb/client/smb2ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessT…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/smb2ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"94e4f672db029414b9888b5137a7559f1febf2d8","status":"affected","version":"b24df3e30cbf48255db866720fb71f14bf9d2f39","versionType":"git"},{"lessThan":"68fc0b6cc03ca58060c0f36454e169f5fe258974","status":"affected","version":"b24df3e30cbf48255db866720fb71f14bf9d2f39","versionType":"git"},{"lessThan":"07e0ab81df1790afa35732a4e8e07ff831b29008","status":"affected","version":"b24df3e30cbf48255db866…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/smb2ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessT…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/smb2ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"94e4f672db029414b9888b5137a7559f1febf2d8","status":"affected","version":"b24df3e30cbf48255db866720fb71f14bf9d2f39","versionType":"git"},{"lessThan":"68fc0b6cc03ca58060c0f36454e169f5fe258974","status":"affected","version":"b24df3e30cbf48255db866720fb71f14bf9d2f39","versionType":"git"},{"lessThan":"07e0ab81df1790afa35732a4e8e07ff831b29008","status":"affected","version":"b24df3e30cbf48255db866…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/07e0ab81df1790afa35732a4e8e07ff831b29008"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/1c6267a1d5cf4c73b656f8181b310cbbb3e4767b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/297243e365fc9fe2f8e9b7dd535a65d922cd108b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/67097772df7791c53d608f04bd31c676ccf79b83"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/68fc0b6cc03ca58060c0f36454e169f5fe258974"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/9136a08dc29328edd9867f2545e73906ac9df93b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/927d4805aea0a287d36dd4f826ee24d69a2afee3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/94e4f672db029414b9888b5137a7559f1febf2d8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b11a6cd6066a4c1f93c041734b5e2d9b1055ae6af10b1787a3accc5754bc5207 · sha256:caed394ce5ce77d8… · /containers/cna/references/0

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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