wifi: iwlwifi: read txq->read_ptr under lock
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 5.15.209, 6.1.175, 6.6.31, 6.8.10
- 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: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: read txq->read_ptr under lock If we read txq->read_ptr without lock, we can read the same value twice, then obtain the lock, and reclaim from there to two different places, but crucially reclaim the same entry twice, resulting in the WARN_ONCE() a little later. Fix that by reading txq->read_ptr under lock.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
From 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 · fixed in f30e8af109818c9db08cbcc46eb9713fe4b530ba; From 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 · fixed in aab7b39fcac5f6165f6434bcbb56bb7865d4ad2b; From 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 · fixed in b83db8e756dec68a950ed2f056248b1704b3deaa; From 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 · fixed in 43d07103df670484cdd26f9588eabef80f69db89; From 7b3e42ea2eadd41cc9d6363a9813b8ba8ab6f0e6 · fixed in c2ace6300600c634553657785dfe5ea0ed688ac2
- Linux Linux
4.19
- KernelLinux
From 4.19.0 · fixed in 5.15.209; From 5.16.0 · fixed in 6.1.175; From 6.2.0 · fixed in 6.6.31; From 6.7.0 · fixed in 6.8.10