Bug 2562708 (CVE-2026-99206) - CVE-2026-99206 kernel: scsi: target: iscsi: Fix race in discovery auth updates
Summary: CVE-2026-99206 kernel: scsi: target: iscsi: Fix race in discovery auth updates
Keywords:
Status: NEW
Alias: CVE-2026-99206
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-28 10:54 UTC by OSIDB Bzimport
Modified: 2026-10-28 14:53 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-10-28 10:54:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

scsi: target: iscsi: Fix race in discovery auth updates

Separate configfs opens can concurrently update the discovery AuthMethod
parameter. Both callers may free the same value in
iscsi_update_param_value(), causing a double-free.

Protect the lookup and replacement with the discovery TPG access lock,
as used by the other TPG configfs parameter updates.
Comment 1 gkamathe 2026-10-28 14:44:53 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99206.mbox
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