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CVE-2025-68376

coresight: ETR: Fix ETR buffer use-after-free issue

In the Linux kernel, the following vulnerability has been resolved:

coresight: ETR: Fix ETR buffer use-after-free issue

When ETR is enabled as CS_MODE_SYSFS, if the buffer size is changed
and enabled again, currently sysfs_buf will point to the newly
allocated memory(buf_new) and free the old memory(buf_old). But the
etr_buf that is being used by the ETR remains pointed to buf_old, not
updated to buf_new. In this case, it will result in a memory
use-after-free issue.

Fix this by checking ETR's mode before updating and releasing buf_old,
if the mode is CS_MODE_SYSFS, then skip updating and releasing it.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version bd2767ec3df2775bc336f441f9068a989ccb919d
Version < 70acbc9c77686b7a521af6d7a543dcd9c324cf07
Status affected
Version bd2767ec3df2775bc336f441f9068a989ccb919d
Version < cda077a19f5c8d6ec61e5b97deca203d95e3a422
Status affected
Version bd2767ec3df2775bc336f441f9068a989ccb919d
Version < 35501ac3c7d40a7bb9568c2f89d6b56beaf9bed3
Status affected
Version fdd3ceb0001da6768bede9779a0190a42e65c404
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.6
Status affected
Version 0
Version < 6.6
Status unaffected
Version <= 6.17.*
Version 6.17.13
Status unaffected
Version <= 6.18.*
Version 6.18.2
Status unaffected
Version <= *
Version 6.19
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.092
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
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