Answer in brief
CVE-2026-98261 records a Unknown severity vulnerability in cifs: Fix server use-after-free in cifs_chan_skip_or_disable(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=50e8363ecc85da49764781da90ebffe1a657b370 <0338489960ddad6368bce55e8adbc176c523093d || >=f591062bdbf4742b7f1622173017f19e927057b0 <edd52eae5fcfb8433b6bb0e7cd98db438fe01227 || >=f591062bdbf4742b7f1622173017f19e927057b0 <fcc0a935bb6e37ecbf7e4335061309f896f35780 || >=f591062bdbf4742b7f1622173017f19e927057b0 <7a1b27780b113583a94256d58dabfe7c0d9286e7 || >=f591062bdbf4742b7f1622173017f19e927057b0 <717e0a25036b6c92cecace30913b2d874a4c22b8 || d61ba1d71ea6039eca7ada870bf3f0c3c8fc12e4 || >=6.6.15 <6.6.158 || >=6.7.3 <6.8 | 0338489960ddad6368bce55e8adbc176c523093d, edd52eae5fcfb8433b6bb0e7cd98db438fe01227, fcc0a935bb6e37ecbf7e4335061309f896f35780, 7a1b27780b113583a94256d58dabfe7c0d9286e7, 717e0a25036b6c92cecace30913b2d874a4c22b8, 6.6.158, 6.8 |
| Linux/Linuxgeneric | 6.8 | Not reported |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: cifs: Fix server use-after-free in cifs_chan_skip_or_disable() When a secondary channel is no longer supported by the server, cifs_chan_skip_or_disable() drops the channel reference with cifs_put_tcp_session() and then continues to use the server pointer by calling cifs_signal_cifsd_for_reconnect() on it and reading its primary_server pointer. cifs_put_tcp_session() can drop the last reference of the channel and tear it down, so both the channel and the primary server (whose reference is also dropped by cifs_put_tcp_session()) can be freed before they are signaled for reconnect. Signal the channel and the primary server and capture the primary server pointer before dropping the channel reference with cifs_put_tcp_session().
Quoted source text, attributed separately from HOL analysis.