Riskcovery

CVE-2026-90273

coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 30, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable

In the perf enable path, there are missing cases where cscfg_csdev_disable_active_config() is not called:

- Branch broadcast is selected but not supported by the hardware - etm4_enable_hw() fails

This can lead to a leak of config_desc->active_cnt. Fix this by properly calling cscfg_csdev_disable_active_config() in these error paths.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 810ac401db1fe432020d7936a199591000de8279 to before f097b6969e9961365358fc5ba5892db2f284f020Affected
  • 810ac401db1fe432020d7936a199591000de8279 to before ba63c62d4252f6bc58fd2a567075c72d03332562Affected
  • 810ac401db1fe432020d7936a199591000de8279 to before 26f9e89bad5a7e3005d3dc97a2e2fa6d6b2b8bb6Affected
  • 810ac401db1fe432020d7936a199591000de8279 to before d5f3dae82705d9388434892915008da3bb83c4baAffected
  • 810ac401db1fe432020d7936a199591000de8279 to before 7e4f2702bbadbde887a5d8897297720a7f037ee5Affected
  • 810ac401db1fe432020d7936a199591000de8279 to before 0a47f0be6557b4a851addd430383a4dc7ee08752Affected
LinuxLinux
  • 5.15Affected
  • before 5.15Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 through 6.12.*Not affected
  • 6.18.57 through 6.18.*Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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