CVE-2024-53189

Summary

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

wifi: nl80211: fix bounds checker error in nl80211_parse_sched_scan

The channels array in the cfg80211_scan_request has a __counted_by attribute attached to it, which points to the n_channels variable. This attribute is used in bounds checking, and if it is not set before the array is filled, then the bounds sanitizer will issue a warning or a kernel panic if CONFIG_UBSAN_TRAP is set.

This patch sets the size of allocated memory as the initial value for n_channels. It is updated with the actual number of added elements after the array is filled.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxaa4ec06c455d0200eea0a4361cc58eb5b8bf68c4 < d4ef643ea78c59c22546046c25dc6e7206267672affected
LinuxLinuxaa4ec06c455d0200eea0a4361cc58eb5b8bf68c4 < 1a7b62ddf2c7642878c24f0e556041bb58c37527affected
LinuxLinuxaa4ec06c455d0200eea0a4361cc58eb5b8bf68c4 < 9c46a3a5b394d6d123866aa44436fc2cd342eb0daffected
LinuxLinux6.11affected
LinuxLinux0 < 6.11unaffected
LinuxLinux6.11.11 <= 6.11.*unaffected
LinuxLinux6.12.2 <= 6.12.*unaffected
LinuxLinux6.13 <= *unaffected

Weaknesses

References