CVE-2021-47521
N/A
N/A
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < cbd86110546f7f730a1f5d7de56c944a336c15c4 | affected |
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < 1dd5b819f7e406dc15bbc7670596ff25261aaa2a | affected |
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < c8718026ba287168ff9ad0ccc4f9a413062cba36 | affected |
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < ccf070183e4655824936c0f96c4a2bcca93419aa | affected |
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < 1a295fea90e1acbe80c6d4940f5ff856edcd6bec | affected |
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < 923f4dc5df679f678e121c20bf2fd70f7bf3e288 | affected |
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < 474f9a8534f5f89841240a7e978bafd6e1e039ce | affected |
| Linux | Linux | fd734c6f25aea4b2b44b045e489aec67b388577e < 3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45 | affected |
| Linux | Linux | 3.2 | affected |
| Linux | Linux | 0 < 3.2 | unaffected |
| Linux | Linux | 4.4.295 <= 4.4.* | unaffected |
| Linux | Linux | 4.9.293 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.258 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.221 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.165 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.85 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.8 <= 5.15.* | unaffected |
| Linux | Linux | 5.16 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4
- https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a
- https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36
- https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa
- https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec
- https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288
- https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce
- https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45
References
- https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4
- https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a
- https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36
- https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa
- https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec
- https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288
- https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce
- https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45
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