Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-90094

arm64: process: Fix context switching MTE store-only tag check

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 4d51ff5bba00a13ca9b0b24883fa7adb07a167fc to < 00a73ce437e27fdc636a5ede445a4a491e01788daffected
  • 4d51ff5bba00a13ca9b0b24883fa7adb07a167fc to < 2f10bc3ff24c91657887901c3235b803e5055f2baffected
  • 4d51ff5bba00a13ca9b0b24883fa7adb07a167fc to < b8f070ac3167595069feb1f794c127b805115645affected

Linux Linux

Default version status: affected

  • 6.17affected
  • 0 to < 6.17unaffected
  • 6.18.52 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References