Riskcovery

CVE-2026-90152

smb/server: fix session leak in ksmbd_session_register()

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 30, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

smb/server: fix session leak in ksmbd_session_register()

See the procedure below:

smb2_sess_setup ksmbd_smb2_session_create __session_create atomic_set(&sess->refcnt, 2) hash_add(sessions_table, &sess->hlist, sess->id) ksmbd_session_register xa_store(&conn->sessions, sess->id, sess) // fail ksmbd_user_session_put atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed

Remove the session from sessions_table and drop its table reference if xa_store() fails.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b to before 869807cdd5599c289c21d40f36a504d72a0d23c6Affected
  • f5c779b7ddbda30866cf2a27c63e34158f858c73 to before 988f99bfddda4e2d1da5f6e98b237dd85e123ceeAffected
  • f5c779b7ddbda30866cf2a27c63e34158f858c73 to before 03a22a003f41b182245e6c71fe565e277cff7094Affected
  • f5c779b7ddbda30866cf2a27c63e34158f858c73 to before b967a595fb735d313a8676b2ca6a4cba38506482Affected
  • f5c779b7ddbda30866cf2a27c63e34158f858c73 to before 55c677619084f9c9fa4146d933cc8ccafc924c87Affected
  • f5c779b7ddbda30866cf2a27c63e34158f858c73 to before 99b25b046e47e4904373cfeb445c5483f1633d88Affected
  • 708c304b583d789957399dd8237f212cf8ad1e4dAffected
  • d270631c21e68fb8016d6e231d022d7023a2df6fAffected
  • 02f41d88f15d6b7d523e52cc3f87488f57e9265bAffected
  • 6.1.29 to before 6.1.191Affected
  • 5.15.145 to before 5.16Affected
  • 6.2.16 to before 6.3Affected
  • 6.3.2 to before 6.4Affected
LinuxLinux
  • 6.4Affected
  • before 6.4Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.110 through 6.12.*Not affected
  • 6.18.52 through 6.18.*Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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