net: core: reject skb_copy(_expand) for fraglist GSO skbs
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: core: reject skb_copy(_expand) for fraglist GSO skbs SKB_GSO_FRAGLIST skbs must not be linearized, otherwise they become invalid. Return NULL if such an skb is passed to skb_copy or skb_copy_expand, in order to prevent a crash on a potential later call to skb_gso_segment.
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/faa83a7797f06cefed86731ba4baa3b4dfdc06c1
- https://git.kernel.org/stable/c/c7af99cc21923a9650533c9d77265c8dd683a533
- https://git.kernel.org/stable/c/989bf6fd1e1d058e73a364dce1a0c53d33373f62
- https://git.kernel.org/stable/c/cfe34d86ef9765c388f145039006bb79b6c81ac6
- https://git.kernel.org/stable/c/aea5e2669c2863fdd8679c40ee310b3bcaa85aec
- https://git.kernel.org/stable/c/d091e579b864fa790dd6a0cd537a22c383126681
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Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.