CVE-2026-98167
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
smb: client: fix server->total_read for compound encrypted PDUs
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix server->total_read for compound encrypted PDUs In receive_encrypted_standard(), server->total_read is left at the full decrypted frame size when walking sub-PDUs of a compound encrypted frame. As a result, cifs_handle_standard() passes this full size to smb2_check_message(), causing the PDU length guards to incorrectly validate the entire compound frame instead of the current sub-PDU. This allows truncated non-last sub-PDUs to bypass length validation, leading to out-of-bounds reads in smb2_get_data_area_len(). Fix this by setting server->total_read to the true length of the current sub-PDU: next_cmd for non-last sub-PDUs, and the remaining pdu_length for the last one.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| b24df3e30cbf48255db866720fb71f14bf9d2f39 | affected | git | 8703539d22fdbc13dd2db090ee199c3a427b8ea0 | Unavailable | None listed |
| b24df3e30cbf48255db866720fb71f14bf9d2f39 | affected | git | e78fc1d240b27349b45a0f1c3e3c2c401d7e230d | Unavailable | None listed |
| b24df3e30cbf48255db866720fb71f14bf9d2f39 | affected | git | a46eb242e9eef3a3897d166748b23303c516e870 | Unavailable | None listed |
| b24df3e30cbf48255db866720fb71f14bf9d2f39 | affected | git | ebb8a075fdc7af3d196a4f158a0e18dbc394c0e3 | Unavailable | None listed |
| b24df3e30cbf48255db866720fb71f14bf9d2f39 | affected | git | 282b72f9a7ef31296c48366db4128882999cc048 | Unavailable | None listed |
| b24df3e30cbf48255db866720fb71f14bf9d2f39 | affected | git | f73726b83e4756fdaa099e1bc1143293bd57ad79 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.19 | Unavailable | None listed |
| 6.1.189 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.158 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.54 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.8 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |