CVE-2022-23222

kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of the availability of pointer arithmetic via certain *_OR_NULL pointer types.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Potential Mitigations

References

• http://www.openwall.com/lists/oss-security/2022/01/14/1
• http://www.openwall.com/lists/oss-security/2022/01/18/2
• http://www.openwall.com/lists/oss-security/2022/06/01/1
• http://www.openwall.com/lists/oss-security/2022/06/04/3
• http://www.openwall.com/lists/oss-security/2022/06/07/3
• https://bugzilla.suse.com/show_bug.cgi?id=1194765
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=64620e0a1e712a778095bd35cbb277dc2259281f
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCR3LIRUEXR7CA63W5M2HT3K63MZGKBR/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5VTIZZUPC73IEJNZX66BY2YCBRZAELB/
• https://security.netapp.com/advisory/ntap-20220217-0002/
• https://www.debian.org/security/2022/dsa-5050
• https://www.openwall.com/lists/oss-security/2022/01/13/1