CVE-2023-52846

hsr: Prevent use after free in prp_create_tagged_frame()

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

21 May 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prp_create_tagged_frame() The prp_fill_rct() function can fail. In that situation, it frees the skb and returns NULL. Meanwhile on the success path, it returns the original skb. So it's straight forward to fix bug by using the returned value.

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18 https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401db https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0d https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827da https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363 https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffd