CVE-2026-98555Medium· 4.7▾ SunlitA flaw was found in the Linux kernel's Logical Link Control (LLC) subsystem. When an error occurs during network packet header initialization, the kernel mistakenly frees the incorrect memory buffer, resulting in a use-after-free condition…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 4.7
none → medium
Last analysed / modified upstream
4.7 → 7.5
medium → high
0.2% → 0.3%
7.5 → 4.7
high → medium
A flaw was found in the Linux kernel's Logical Link Control (LLC) subsystem. When an error occurs during network packet header initialization, the kernel mistakenly frees the incorrect memory buffer, resulting in a use-after-free condition, a double-free, and memory leaks. An attacker could exploit this flaw to crash the system, resulting in a Denial of Service (DoS), or potentially execute arbitrary code.
kernel: llc: fix skb UAF and leaks on llc_mac_hdr_init() failure — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-24.
Not affected:
Refer to the advisory for fix availability.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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