CVE-2026-23274

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

Kerentanan pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels IDLETIMER revision 0 rules reuse existing timers by label and always call mod_timer() on timer->timer. If the label was created first by revision 1 with XT_IDLETIMER_ALARM, the object uses alarm timer semantics and timer->timer is never initialized. Reusing that object from revision 0 causes mod_timer() on an uninitialized timer_list, triggering debugobjects warnings and possible panic when panic_on_warn=1. Fix this by rejecting revision 0 rule insertion when an existing timer with the same label is of ALARM type.

Rincian

Terbit di NVD

20 Maret 2026

Terakhir diubah

14 Juli 2026

Status NVD

Modified

CVSS 3.1

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

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/144f88054ba0180467356f40895bd660b5dceeec patch
• https://git.kernel.org/stable/c/28c7cfaf0c0ab17cbd7754092116fd1af45271f9 patch
• https://git.kernel.org/stable/c/329f0b9b48ee6ab59d1ab72fef55fe8c6463a6cf patch
• https://git.kernel.org/stable/c/32e937dc6e97f5ed3cdfe3fc0b2b19a05e23fa44 patch
• https://git.kernel.org/stable/c/54080355999381fed4a26129579a5765bab87491 patch
• https://git.kernel.org/stable/c/5e7ece24c5cb75a60402aad4d803c7898ea40aa9 patch
• https://git.kernel.org/stable/c/f228b9ae2a7e84d1153616d8e71c4236cb1f1309 patch
• https://git.kernel.org/stable/c/f5ef97c13165542480a6ffdbe6f09f40bbb7cbf1 patch
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-082556.html