CVE-2024-56720
bpf, sockmap: Several fixes to bpf_msg_pop_data
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.0
References 8
git.kernel.org
- stable/c/d3f5763b3062514a234114e97bbde74d8d702449
- stable/c/d26d977633d1d0b8bf9407278189bd0a8d973323
- stable/c/e1f54c61c4c9a5244eb8159dce60d248f7d97b32
- stable/c/f58d3aa457e77a3d9b3df2ab081dcf9950f6029f
- stable/c/98c7ea7d11f2588e8197db042e0291e4ac8f8346
- stable/c/785180bed9879680d8e5c5e1b54c8ae8d948f4c8
- stable/c/275a9f3ef8fabb0cb282a62b9e164dedba7284c5
- stable/c/5d609ba262475db450ba69b8e8a557bd768ac07a