Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: thermal/netlink: Prevent userspace segmentation fault by adjusting UAPI header The intel-lpmd tool [1], which uses the THERMAL_GENL_ATTR_CPU_CAPABILITY attribute to receive HFI events from kernel space, encounters a segmentation fault after commit 1773572863c4 ("thermal: netlink: Add the commands and the events for the thresholds"). The issue arises because the THERMAL_GENL_ATTR_CPU_CAPABILITY raw value was changed while intel_lpmd still uses the old value. Although intel_lpmd can be updated to check the THERMAL_GENL_VERSION and use the appropriate THERMAL_GENL_ATTR_CPU_CAPABILITY value, the commit itself is questionable. The commit introduced a new element in the middle of enum thermal_genl_attr, which affects many existing attributes and introduces potential risks and unnecessary maintenance burdens for userspace thermal netlink event users. Solve the issue by moving the newly introduced THERMAL_GENL_ATTR_TZ_PREV_TEMP attribute to the end of the enum thermal_genl_attr. This ensures that all existing thermal generic netlink attributes remain unaffected. [ rjw: Subject edits ]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1773572863c43a14a3e45f0591f28b7dec1ee52a before 3a4ca365c51729143a2cab693cd40fe0bb585ef0; affected 1773572863c43a14a3e45f0591f28b7dec1ee52a before c195b9c6ab9c383d7aa3f4a65879b3ca90cb378b |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.13.4 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.