xsk: validate launch-time metadata size
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.15, 6.18.45, 7.1.9
- 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: xsk: validate launch-time metadata size Launch-time metadata extends beyond the first 16 bytes of struct xsk_tx_metadata. Reject the request when the registered metadata area does not contain the complete field. Snapshot the validated flags for the generic transmit path and use that snapshot for request and completion processing, avoiding inconsistent decisions if user space changes the flags concurrently. Note that only xsk_skb_metadata is properly using the flags, __xsk_buff_get_metadata ignores them. Next commits address that.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 · fixed in af511afa1d2977f384044df78d6fbf9fba653f7a; From ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 · fixed in bc63d47611c07b0d5d655fe1a590861931527920; From ca4419f15abd19ba8be1e109661b60f9f5b6c9f0 · fixed in 439ce2dddf3d22129b9113a7881637256a35e936; From 6.14.2 · fixed in 6.15
- Linux Linux
6.15
- KernelLinux
From 6.15.0 · fixed in 6.18.45; From 6.19.0 · fixed in 7.1.9