CVE-2021-47521
can: sja1000: fix use after free in ems_pcmcia_add_card()
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up.
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
3.2
References 8
git.kernel.org
- stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4
- stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a
- stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36
- stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa
- stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec
- stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288
- stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce
- stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45