CVE-2024-26582 net: tls: fix use-after-free with partial reads and async decrypt

What is CVE-2024-26582?

CVE-2024-26582 is a critical use after free vulnerability in Linux kernel, published on 21 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

net: tls: fix use-after-free with partial reads and async decrypt

tls_decrypt_sg doesn't take a reference on the pages from clear_skb, so the put_page() in tls_decrypt_done releases them, and we trigger a use-after-free in process_rx_list when we try to read from the partially-read skb.

Weakness: CWE-416

Which versions are affected by CVE-2024-26582?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-26582?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2024-26582 being exploited?

There is no known exploitation of CVE-2024-26582 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-35798, BELL-CVE-2024-26582, DEBIAN-CVE-2024-26582, GHSA-j66f-jc3v-93vp, UBUNTU-CVE-2024-26582.