CVE-2016-2383
Moderate
CVE-2016-2383
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
Exploit probability
0.4%
Published
April 27, 2016
Required by
Not available
Last source change
March 15, 2026
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2016-2383
View original source
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
05 / REFERENCES
Further evidence
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a1b14d27ed0965838350f1377ff97c93ee383492
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
- http://www.openwall.com/lists/oss-security/2016/02/14/1
- http://www.ubuntu.com/usn/USN-2947-1
- http://www.ubuntu.com/usn/USN-2947-2
- http://www.ubuntu.com/usn/USN-2947-3
- https://bugzilla.redhat.com/show_bug.cgi?id=1308452
- https://github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492