CVE-2026-23444

Katalog CVE

CVSS 5.5 · Medium EPSS 0,13%

Kerentanan Missing Release of Memory after Effective Lifetime pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: always free skb on ieee80211_tx_prepare_skb() failure ieee80211_tx_prepare_skb() has three error paths, but only two of them free the skb. The first error path (ieee80211_tx_prepare() returning TX_DROP) does not free it, while invoke_tx_handlers() failure and the fragmentation check both do. Add kfree_skb() to the first error path so all three are consistent, and remove the now-redundant frees in callers (ath9k, mt76, mac80211_hwsim) to avoid double-free. Document the skb ownership guarantee in the function's kdoc.

Rincian

Terbit di NVD

3 April 2026

Terakhir diubah

24 Juli 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-401: Missing Release of Memory after Effective Lifetime

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/06e769dddcbeb3baf2ce346273b53dd61fdbecf4 patch
• https://git.kernel.org/stable/c/50f1b690b4868923fbd242298def2fb88662f108 patch
• https://git.kernel.org/stable/c/d5ad6ab61cbd89afdb60881f6274f74328af3ee9 patch
• https://git.kernel.org/stable/c/3b4d27acafaeab478fd24f79ad6e593a892828b9
• https://git.kernel.org/stable/c/5ef8ca1c164786da24169af155c1ca1ff1353cf8
• https://git.kernel.org/stable/c/905ef207d5ed99ca64adfe39fba9ac46e434327a
• https://git.kernel.org/stable/c/9a779d1f480e83720b5384adf165604e7ee226bd
• https://git.kernel.org/stable/c/f77b51bcee7be2bb686b5f7a2d4a1921e4bdb9f4