UBUNTU-CVE-2024-38566
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket->sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just created and passed to LSM socket_accept hook. Fix this verifier assumption and adjust tests.
02 / AFFECTED SOFTWARE
Affected packages
29 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket->sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just created and passed to LSM socket_accept hook. Fix this verifier assumption and adjust tests.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/0db63c0b86e981a1e97d2596d64ceceba1a5470e
- https://git.kernel.org/stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470e
- https://git.kernel.org/stable/c/39f8a29330f433000e716eefc4b9abda05b71a82
- https://git.kernel.org/stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24f
- https://git.kernel.org/stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001
- https://ubuntu.com/security/CVE-2024-38566
- https://ubuntu.com/security/notices/USN-6949-1
- https://ubuntu.com/security/notices/USN-6949-2
- https://ubuntu.com/security/notices/USN-6952-1
- https://ubuntu.com/security/notices/USN-6952-2
- https://ubuntu.com/security/notices/USN-6955-1
- https://www.cve.org/CVERecord?id=CVE-2024-38566