Unrated severityNVD Advisory· Published Sep 17, 2026· Updated Oct 30, 2026
CVE-2026-90273
CVE-2026-90273
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.
Affected products
3- osv-coords2 versions
< 7.2.7-1.1+ 1 more
- (no CPE)range: < 7.2.7-1.1
- (no CPE)range: >= 5.15.0, < 6.1.191
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752nvd
- git.kernel.org/stable/c/26f9e89bad5a7e3005d3dc97a2e2fa6d6b2b8bb6nvd
- git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5nvd
- git.kernel.org/stable/c/ba63c62d4252f6bc58fd2a567075c72d03332562nvd
- git.kernel.org/stable/c/d5f3dae82705d9388434892915008da3bb83c4banvd
- git.kernel.org/stable/c/f097b6969e9961365358fc5ba5892db2f284f020nvd
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