hsr: Prevent use after free in prp_create_tagged_frame()
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/stable/c/ddf4e04e946aaa6c458b8b6829617cc44af2bffd
- https://git.kernel.org/stable/c/a1a485e45d24b1cd8fe834fd6f1b06e2903827da
- https://git.kernel.org/stable/c/6086258bd5ea7b5c706ff62da42b8e271b2401db
- https://git.kernel.org/stable/c/1787b9f0729d318d67cf7c5a95f0c3dba9a7cc18
- https://git.kernel.org/stable/c/d103fb6726904e353b4773188ee3d3acb4078363
- https://git.kernel.org/stable/c/876f8ab52363f649bcc74072157dfd7adfbabc0d
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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