CVE-2022-49416

Katalog CVE

CVSS 8.8 · High EPSS 0,34%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 8.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix use-after-free in chanctx code In ieee80211_vif_use_reserved_context(), when we have an old context and the new context's replace_state is set to IEEE80211_CHANCTX_REPLACE_NONE, we free the old context in ieee80211_vif_use_reserved_reassign(). Therefore, we cannot check the old_ctx anymore, so we should set it to NULL after this point. However, since the new_ctx replace state is clearly not IEEE80211_CHANCTX_REPLACES_OTHER, we're not going to do anything else in this function and can just return to avoid accessing the freed old_ctx.

Rincian

Terbit di NVD

26 Februari 2025

Terakhir diubah

4 Agustus 2026

Status NVD

Modified

CVSS 3.1

8.8 (High), sumber CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/265bec4779a38b65e86a25120370f200822dfa76 patch
• https://git.kernel.org/stable/c/2965c4cdf7ad9ce0796fac5e57debb9519ea721e patch
• https://git.kernel.org/stable/c/4ba81e794f0fad6234f644c2da1ae14d5b95e1c4 patch
• https://git.kernel.org/stable/c/4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c patch
• https://git.kernel.org/stable/c/6118bbdf69f4718b02d26bbcf2e497eb66004331 patch
• https://git.kernel.org/stable/c/82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c patch
• https://git.kernel.org/stable/c/88cc8f963febe192d6ded9df7217f92f380b449a patch
• https://git.kernel.org/stable/c/9f1e5cc85ad77e52f54049a94db0407445ae2a34 patch
• https://git.kernel.org/stable/c/b79110f2bf6022e60e590d2e094728a8eec3e79e patch