🛡️ CVE-2024-36883 — debian-linux

🟠 CVSS 7.8 — High ✅ No Known Exploit CWE-125 NVD

7.8

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

net: fix out-of-bounds access in ops_init

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

net: fix out-of-bounds access in ops_init

net_alloc_generic is called by net_alloc, which is called without any

locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It

is read twice, first to allocate an array, then to set s.len, which is

later used to limit the bounds of the array access.

It is possible that the array is allocated and another thread is

registering a new pernet ops, increments max_gen_ptrs, which is then used

to set s.len with a larger than allocated length for the variable array.

Fix it by reading max_gen_ptrs only once in net_alloc_generic. If

max_gen_ptrs is later incremented, it will be caught in net_assign_generic.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2024-36883 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2024-36883 is recorded against 3 packages.

debian-linux
kernel (from 6.7.0 up to 6.8.10)
linux-kernel

Timeline and source

Published on 30 May 2024 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org

CVE-2024-36883 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

BellSoft Debian Ubuntu

Details

Severity HIGH

CVSS Score 7.8

CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE CWE-125

Public Exploit ✅ No

Source NVD

Published 2024-05-30

Updated 2026-08-20

Modified 2026-08-04

Fix URL https://git.kernel.org/stable/c/0c3248bc708a7797be573214065cf908ff1f54c7

Affected Packages

Software	From version	Fixed in
debian-linux	—	—
kernel	6.7.0	6.8.10
linux-kernel	—	—

References

Patch https://git.kernel.org/stable/c/0c3248bc708a7797be573214065cf908ff1f54c7

Patch https://git.kernel.org/stable/c/2d60ff5874aefd006717ca5e22ac1e25eac29c42

Patch https://git.kernel.org/stable/c/3cdc34d76c4f777579e28ad373979d36c030cfd3

Patch https://git.kernel.org/stable/c/7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41f

Patch https://git.kernel.org/stable/c/9518b79bfd2fbf99fa9b7e8e36bcb1825e7ba030

Patch https://git.kernel.org/stable/c/a26ff37e624d12e28077e5b24d2b264f62764ad6

Patch https://git.kernel.org/stable/c/b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cd

Patch https://git.kernel.org/stable/c/f4f94587e1bf87cb40ec33955a9d90148dd026ab

Patch https://git.kernel.org/stable/c/0c3248bc708a7797be573214065cf908ff1f54c7

Patch https://git.kernel.org/stable/c/2d60ff5874aefd006717ca5e22ac1e25eac29c42

Patch https://git.kernel.org/stable/c/3cdc34d76c4f777579e28ad373979d36c030cfd3

Patch https://git.kernel.org/stable/c/7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41f

Patch https://git.kernel.org/stable/c/9518b79bfd2fbf99fa9b7e8e36bcb1825e7ba030

Patch https://git.kernel.org/stable/c/a26ff37e624d12e28077e5b24d2b264f62764ad6

Patch https://git.kernel.org/stable/c/b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cd

Patch https://git.kernel.org/stable/c/f4f94587e1bf87cb40ec33955a9d90148dd026ab

Third Party Advisory https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html

Third Party Advisory https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Third Party Advisory https://security.netapp.com/advisory/ntap-20241018-0001/

🔗 NVD 🔗 Mitre ✅ Fix / Advisory

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