net: rds: clear i_sends on setup unwind
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 3.19, 4.2, 4.5, 4.10
- 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
Summary
In the Linux kernel, the following vulnerability has been resolved: net: rds: clear i_sends on setup unwind The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from resources that have already been released. When rds_ib_setup_qp() fails after allocating i_sends but before allocating i_recvs, the sends_out path frees i_sends without clearing the pointer. A later shutdown pass can still treat that stale pointer as a live send ring allocation. Clear i_sends after vfree() in the error unwind path so the existing shutdown logic continues to use the correct ownership state.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 3.18.74 · fixed in 3.19; From 4.1.46 · fixed in 4.2; From 4.4.91 · fixed in 4.5; From 4.9.54 · fixed in 4.10
- Linux Linux
4.11
References 8
git.kernel.org
- stable/c/66cccec111421a10efdc2c74499d15b93e7acae5
- stable/c/2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b
- stable/c/29d940026dce39e3018dab6f67c9427249321270
- stable/c/e7cf30aa5f1fc6c2a86df65df8b731df20e44d79
- stable/c/f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a
- stable/c/1d4ec754ee3871f7e3670c67bb0298c9c5760926
- stable/c/27040bbca289a704eafcacca167d310c6ce2b1bc
- stable/c/20cf0fb715c41111469577e85e35d15f099473e0