CVSS 3.1
7.1 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HCVE-2025-38657
High (7.1) in linux linux kernel. EPSS 0.1% chance of exploitation in the next 30 days.
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: mcc: prevent shift wrapping in rtw89_core_mlsr_switch()
The "link_id" value comes from the user via debugfs. If it's larger
than BITS_PER_LONG then that would result in shift wrapping and
potentially an out of bounds access later. In fact, we can limit it
to IEEE80211_MLD_MAX_NUM_LINKS (15).
Fortunately, only root can write to debugfs files so the security
impact is minimal.
Severity
- EPSS
- 0.1% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-31)
- CWE
- CWE-125
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel