net: xdp: Disallow attaching device-bound programs in generic mode
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- Fix
- Fixed in 6.6.76, 6.12.13, 6.13.2
- 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
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: net: xdp: Disallow attaching device-bound programs in generic mode Device-bound programs are used to support RX metadata kfuncs. These kfuncs are driver-specific and rely on the driver context to read the metadata. This means they can't work in generic XDP mode. However, there is no check to disallow such programs from being attached in generic mode, in which case the metadata kfuncs will be called in an invalid context, leading to crashes. Fix this by adding a check to disallow attaching device-bound programs in generic mode.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 · fixed in b1bc4a35a04cbeb85b6ef5911ec015baa424989f; From 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 · fixed in 557707906dd3e34b8a8c265f664d19f95799937e; From 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 · fixed in 5a9eae683d6c36e8a7aa31e5eb8b369e41aa66e1; From 2b3486bc2d237ec345b3942b7be5deabf8c8fed1 · fixed in 3595599fa8360bb3c7afa7ee50c810b4a64106ea
- Linux Linux
6.3
- KernelLinux
From 6.3.0 · fixed in 6.6.76; From 6.7.0 · fixed in 6.12.13; From 6.13.0 · fixed in 6.13.2