Riskcovery

CVE-2025-68370

coresight: tmc: add the handle of the event to the path

State
Published
Severity
7.8 High
Published
Dec 24, 2025
Updated
Aug 5, 2026
Reserved
Dec 16, 2025

Read the record on cve.org

Description

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

coresight: tmc: add the handle of the event to the path

The handle is essential for retrieving the AUX_EVENT of each CPU and is required in perf mode. It has been added to the coresight_path so that dependent devices can access it from the path when needed.

The existing bug can be reproduced with: perf record -e cs_etm//k -C 0-9 dd if=/dev/zero of=/dev/null

Showing an oops as follows: Unable to handle kernel paging request at virtual address 000f6e84934ed19e

Call trace: tmc_etr_get_buffer+0x30/0x80 [coresight_tmc] (P) catu_enable_hw+0xbc/0x3d0 [coresight_catu] catu_enable+0x70/0xe0 [coresight_catu] coresight_enable_path+0xb0/0x258 [coresight]

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 080ee83cc361451a7de7b5486c7f96ce454f7203 to before faa8f38f7ccb344ace2c1f364efc70e3a12d32f3Affected
  • 080ee83cc361451a7de7b5486c7f96ce454f7203 to before d0c9effd82f2c19b92acd07d357fac5f392d549aAffected
  • 080ee83cc361451a7de7b5486c7f96ce454f7203 to before aaa5abcc9d44d2c8484f779ab46d242d774cabcbAffected
LinuxLinux
  • 6.15Affected
  • before 6.15Not affected
  • 6.17.13 through 6.17.*Not affected
  • 6.18.2 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

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