CVE-2021-47669

Description

In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the canfd_frame cfd which aliases skb memory is accessed after the netif_rx_ni().

Reserved 2025-04-16 | Published 2025-04-17 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

a8f820a380a2a06fc4fe1a54159067958f800929 before 6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105
affected

a8f820a380a2a06fc4fe1a54159067958f800929 before 9b820875a32a3443d67bfd368e93038354e98052
affected

a8f820a380a2a06fc4fe1a54159067958f800929 before a24476b37167816e6352ca1a2cf3769847774f70
affected

a8f820a380a2a06fc4fe1a54159067958f800929 before e771a874076115df8bff27d325edfd2340e4ec69
affected

a8f820a380a2a06fc4fe1a54159067958f800929 before 75854cad5d80976f6ea0f0431f8cedd3bcc475cb
affected

Default status
affected

4.12
affected

Any version before 4.12
unaffected

4.14.218
unaffected

4.19.171
unaffected

5.4.93
unaffected

5.10.11
unaffected

5.11
unaffected

References

git.kernel.org/...c/6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105

git.kernel.org/...c/9b820875a32a3443d67bfd368e93038354e98052

git.kernel.org/...c/a24476b37167816e6352ca1a2cf3769847774f70

git.kernel.org/...c/e771a874076115df8bff27d325edfd2340e4ec69

git.kernel.org/...c/75854cad5d80976f6ea0f0431f8cedd3bcc475cb

cve.org (CVE-2021-47669)

nvd.nist.gov (CVE-2021-47669)

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