CVE-2026-90273coresight: etm4x: missing cscfg_csdev_disable_active_config() in perf enable
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No exploitation reported and no EPSS estimate yet.
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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 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 810ac401db1fe432020d7936a199591000de8279 before d5f3dae82705d9388434892915008da3bb83c4ba; 810ac401db1fe432020d7936a199591000de8279 builds before 7e4f2702bbadbde887a5d8897297720a7f037ee5; 810ac401db1fe432020d7936a199591000de8279 builds before 0a47f0be6557b4a851addd430383a4dc7ee08752 | CNA record |
References
- 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.