CVE-2026-98114

ksmbd: propagate DACL parsing errors

MEDIUM
5.5
CVSS Score
Published: September 25, 2026 at 10:36 AM UTC
Updated: October 28, 2026 at 04:13 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: propagate DACL parsing errors parse_dacl() silently accepts truncated ACEs and allocation failures, allowing set_info_sec() to continue with an incomplete ACL conversion. Return parsing and allocation errors to parse_sec_desc() so malformed security descriptors are rejected before inode attributes or ACL xattrs are updated.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.15 ≤ v < 6.6.1606.13 ≤ v < 6.18.536.19 ≤ v < 7.2.76.7 ≤ v < 6.12.1115.157.3e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9
Vendor states this is fixed in 37952f03d5171eb3a33b2abc2cf6e456d69ff4a1 (fixed)
Vendor states this is fixed in 461f10a5297e85b7c1cd21838922f2e57b934d2d (fixed)
Vendor states this is fixed in a04dac1f2cffe9533f4260f0659297d805e69194 (fixed)
Vendor states this is fixed in c61dc7b1b4a3234b4aa3965502908a292238805c (fixed)
Vendor states this is fixed in 5.15 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc2 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-252

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