high7.8
CVE-2021-47521
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 availa…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 3.2 before 4.4.295 from 4.5 before 4.9.293 from 4.10 before 4.14.258 from 4.15 before 4.19.221 from 4.20 before 5.4.165 from 5.5 before 5.10.85 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec
- https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a
- https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45
- https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce
- https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288
- https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36
- https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4
- https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa
- https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec
- https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a
- https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45
- https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce
- https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288
- https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36
- https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4
- https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa