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CVE-2026-90273

coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 810ac401db1fe432020d7936a199591000de8279 before ba63c62d4252f6bc58fd2a567075c72d03332562; affected 810ac401db1fe432020d7936a199591000de8279 before 26f9e89bad5a7e3005d3dc97a2e2fa6d6b2b8bb6; affected 810ac401db1fe432020d7936a199591000de8279 before d5f3dae82705d9388434892915008da3bb83c4ba; affected 810ac401db1fe432020d7936a199591000de8279 before 7e4f2702bbadbde887a5d8897297720a7f037ee5; affected 810ac401db1fe432020d7936a199591000de8279 before 0a47f0be6557b4a851addd430383a4dc7ee08752
Linux / Linuxaffected 5.15; unaffected 0 before 5.15; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References