CVE-2024-57991
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: chan: fix soft lockup in rtw89_entity_recalc_mgnt_roles() During rtw89_entity_recalc_mgnt_roles(), there is a normalizing process which will re-order the list if an entry with target pattern is found. And once one is found, should have aborted the list_for_each_entry. But, `break` just aborted the inner for-loop. The outer list_for_each_entry still continues. Normally, only the first entry will match the target pattern, and the re-ordering will change nothing, so there won't be soft lockup. However, in some special cases, soft lockup would happen. Fix it by `goto fill` to break from the list_for_each_entry. The following is a sample of kernel log for this problem. watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [wpa_supplicant:2055] [...] RIP: 0010:rtw89_entity_recalc ([...] chan.c:392 chan.c:479) rtw89_core [...]
CVSS Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Threat Intelligence
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| linux | linux_kernel | * | ≥6.13 – <6.13.2 |
References 3
- git.kernel.org https://git.kernel.org/stable/c/01d2d34e9fcc9897081c3c16a666f793c8a38c58
- git.kernel.org https://git.kernel.org/stable/c/223ba95fdcd3c6090e2bd51dce66abb6dd4f9df9
- git.kernel.org https://git.kernel.org/stable/c/e4790b3e314a4814f1680a5dc552031fb199b878
Remediation
- git.kernel.org https://git.kernel.org/stable/c/01d2d34e9fcc9897081c3c16a666f793c8a38c58
- git.kernel.org https://git.kernel.org/stable/c/223ba95fdcd3c6090e2bd51dce66abb6dd4f9df9
- git.kernel.org https://git.kernel.org/stable/c/e4790b3e314a4814f1680a5dc552031fb199b878