coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable

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Summary

CVECVE-2026-90273
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:23 UTC
Updated2026-09-17 17:17:23 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 810ac401db1fe432020d7936a199591000de8279 7e4f2702bbadbde887a5d8897297720a7f037ee5 git Not specified
CNA Linux Linux affected 810ac401db1fe432020d7936a199591000de8279 0a47f0be6557b4a851addd430383a4dc7ee08752 git Not specified
CNA Linux Linux affected 5.15 Not specified
CNA Linux Linux unaffected 5.15 semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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