Bluetooth: ISO: hold sk properly in iso_conn_ready
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 6.6.160, 6.12.114, 6.18.44, 7.1.8
- 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: Bluetooth: ISO: hold sk properly in iso_conn_ready sk deref in iso_conn_ready must be done either under conn->lock, or holding a refcount, to avoid concurrent close. conn->sk is currently accessed without either: [Task 1] [Task 2] iso_sock_release iso_conn_ready sk = conn->sk lock_sock(sk) conn->sk = NULL lock_sock(sk) release_sock(sk) iso_sock_kill(sk) UAF on sk deref Fix possible UAF by holding sk refcount in iso_conn_ready(). Also recheck after lock_sock that the socket is still valid. Adjust locking so conn->sk is cleared only under lock_sock.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
From 27c24fda62b601d6f9ca5e992502578c4310876f · fixed in 44590dc53c9e949d2fed399a571a89c3d7d0b245; From 27c24fda62b601d6f9ca5e992502578c4310876f · fixed in 99b65f0ea3370c13687ff870330c425b6ca44e89; From 27c24fda62b601d6f9ca5e992502578c4310876f · fixed in 4e9b5e8669b3602a4e01b6d1e9539b72e42c84d5; From 27c24fda62b601d6f9ca5e992502578c4310876f · fixed in 1308d72903d792d10b82bc4ef08b8a4452308b04; From 27c24fda62b601d6f9ca5e992502578c4310876f · fixed in 0d255e63fcf3f13a570d7ac11678fa1164ac015c
- Linux Linux
5.15
- KernelLinux
From 5.15.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.114; From 6.13.0 · fixed in 6.18.44; From 6.19.0 · fixed in 7.1.8