CVE-2026-90273

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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-25)

Published

2026-09-17

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

References

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

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