CVE-2022-50384
staging: vme_user: Fix possible UAF in tsi148_dma_list_add
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- 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
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
In the Linux kernel, the following vulnerability has been resolved: staging: vme_user: Fix possible UAF in tsi148_dma_list_add Smatch report warning as follows: drivers/staging/vme_user/vme_tsi148.c:1757 tsi148_dma_list_add() warn: '&entry->list' not removed from list In tsi148_dma_list_add(), the error path "goto err_dma" will not remove entry->list from list->entries, but entry will be freed, then list traversal may cause UAF. Fix by removeing it from list->entries before free().
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.2
References 9
git.kernel.org
- stable/c/5cc4eea715a3fcf4e516662f736dfee63979465f
- stable/c/51c0ad3b7c5b01f9314758335a13f157b05fa56d
- stable/c/e6b0adff99edf246ba1f8d464530a0438cb1cbda
- stable/c/a45ba33d398a821147d7e5f16ead7eb125e331e2
- stable/c/5d2b286eb034af114f67d9967fc3fbc1829bb712
- stable/c/1f5661388f43df3ac106ce93e67d8d22b16a78ff
- stable/c/cf138759a7e92c75cfc1b7ba705e4108fe330edf
- stable/c/85db68fc901da52314ded80aace99f8b684c7815
- stable/c/357057ee55d3c99a5de5abe8150f7bca04f8e53b