Not yet scoredPublished Sep 17, 2026

CVE-2026-90273coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable

Updated under an hour ago (Oct 27, 2026, 8:00 AM ET)

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 810ac401db1fe432020d7936a199591000de8279 before ba63c62d4252f6bc58fd2a567075c72d03332562; 810ac401db1fe432020d7936a199591000de8279 builds before 26f9e89bad5a7e3005d3dc97a2e2fa6d6b2b8bb6; from 810ac401db1fe432020d7936a199591000de8279 before d5f3dae82705d9388434892915008da3bb83c4ba; 810ac401db1fe432020d7936a199591000de8279 builds before 7e4f2702bbadbde887a5d8897297720a7f037ee5; 810ac401db1fe432020d7936a199591000de8279 builds before 0a47f0be6557b4a851addd430383a4dc7ee08752	CNA record

References

References

https://git.kernel.org/stable/c/ba63c62d4252f6bc58fd2a567075c72d03332562
https://git.kernel.org/stable/c/26f9e89bad5a7e3005d3dc97a2e2fa6d6b2b8bb6
https://git.kernel.org/stable/c/d5f3dae82705d9388434892915008da3bb83c4ba
https://git.kernel.org/stable/c/7e4f2702bbadbde887a5d8897297720a7f037ee5
https://git.kernel.org/stable/c/0a47f0be6557b4a851addd430383a4dc7ee08752

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.