Vulnerabilities > CVE-2021-47017 - Use After Free vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
In the Linux kernel, the following vulnerability has been resolved: ath10k: Fix a use after free in ath10k_htc_send_bundle In ath10k_htc_send_bundle, the bundle_skb could be freed by dev_kfree_skb_any(bundle_skb). But the bundle_skb is used later by bundle_skb->len. As skb_len = bundle_skb->len, my patch replaces bundle_skb->len to skb_len after the bundle_skb was freed.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b
- https://git.kernel.org/stable/c/3b1ac40c6012140828caa79e592a438a18ebf71b
- https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676
- https://git.kernel.org/stable/c/5e413c0831ff4700d1739db3fa3ae9f859744676
- https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3
- https://git.kernel.org/stable/c/8392df5d7e0b6a7d21440da1fc259f9938f4dec3
- https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65
- https://git.kernel.org/stable/c/8bb054fb336f4250002fff4e0b075221c05c3c65