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CVE-2021-47521

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CVE-2021-47521

Published: May 24, 2024

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
fd734c6f25aea4b2b44b045e489aec67b388577e - < cbd86110546f7f730a1f5d7de56c944a336c15c4
affected
fd734c6f25aea4b2b44b045e489aec67b388577e - < 1dd5b819f7e406dc15bbc7670596ff25261aaa2a
affected
fd734c6f25aea4b2b44b045e489aec67b388577e - < c8718026ba287168ff9ad0ccc4f9a413062cba36
affected
fd734c6f25aea4b2b44b045e489aec67b388577e - < ccf070183e4655824936c0f96c4a2bcca93419aa
affected
fd734c6f25aea4b2b44b045e489aec67b388577e - < 1a295fea90e1acbe80c6d4940f5ff856edcd6bec

+3 more versions

Linux

Linux

affected
3.2
unaffected
0 - < 3.2
unaffected
4.4.295 - <= 4.4.*
unaffected
4.9.293 - <= 4.9.*
unaffected
4.14.258 - <= 4.14.*

+5 more versions

References

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