Description
In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Several fixes to bpf_msg_pop_data Several fixes to bpf_msg_pop_data, 1. In sk_msg_shift_left, we should put_page 2. if (len == 0), return early is better 3. pop the entire sk_msg (last == msg->sg.size) should be supported 4. Fix for the value of variable "a" 5. In sk_msg_shift_left, after shifting, i has already pointed to the next element. Addtional sk_msg_iter_var_next may result in BUG.
Affected products
linux: linux kernel
References10
- git.kernel.org/stable/c/275a9f3ef8fabb0cb282a62b9e164dedba7284c5 Patch
- git.kernel.org/stable/c/5d609ba262475db450ba69b8e8a557bd768ac07a Patch
- git.kernel.org/stable/c/785180bed9879680d8e5c5e1b54c8ae8d948f4c8 Patch
- git.kernel.org/stable/c/98c7ea7d11f2588e8197db042e0291e4ac8f8346 Patch
- git.kernel.org/stable/c/d26d977633d1d0b8bf9407278189bd0a8d973323 Patch
- git.kernel.org/stable/c/d3f5763b3062514a234114e97bbde74d8d702449 Patch
- git.kernel.org/stable/c/e1f54c61c4c9a5244eb8159dce60d248f7d97b32 Patch
- git.kernel.org/stable/c/f58d3aa457e77a3d9b3df2ab081dcf9950f6029f Patch
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 15 · as of 6 November 2026
- CWE
- CWE-193CWE-401
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.