Unrated severityNVD Advisory· Published Sep 17, 2026· Updated Oct 19, 2026
CVE-2026-90094
CVE-2026-90094
Description
In the Linux kernel, the following vulnerability has been resolved:
arm64: process: Fix context switching MTE store-only tag check
SCTLR_EL1.TCSO0 is set when user opt-in for MTE store-only tag check mode. However, it is not part of SCTLR_USER_MASK which imply that on context switch we never clear SCTLR_EL1.TCSO0, so we are leaking that setting into another task.
Fix that by including SCTLR_EL1_TCSO0_MASK into SCTLR_USER_MASK
Affected products
3- osv-coords2 versions
>= 6.17.0, < 6.18.52+ 1 more
- (no CPE)range: >= 6.17.0, < 6.18.52
- (no CPE)range: < 7.2.7-1.1
Patches
Vulnerability mechanics
References
3News mentions
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