AZL-106014
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-106014.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-106014
- Upstream
- Published
- 2026-10-06T09:18:15Z
- Modified
- 2026-10-07T14:16:54Z
- Summary
- CVE-2026-98261 affecting package kernel 6.6.157.1-1
- Details
-
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().
- References