In the Linux kernel, the following vulnerability has been resolved:
audit: add missing syscalls to read class
The at variant of getxattr() and listxattr() are missing from the audit read class. Calling getxattrat() or listxattrat() on a file to read its extended attributes will bypass audit rules such as:
-w /tmp/test -p rwa -k test_rwa
The current patch adds missing syscalls to the audit read class.
References
- https://git.kernel.org/stable/c/33cdef7ecf6e5d2cf46a35ec26befce072a1aa07
- https://git.kernel.org/stable/c/5632d14b2f2a0ade2d0068e12676ebed67e3bb2a
- https://git.kernel.org/stable/c/a2e8c144299c31d3972295ed80d4cb908daf4f6f
- https://git.kernel.org/stable/c/ad37505ce869a8100ff23f24eea117de7a7516bf
- https://git.kernel.org/stable/c/ada4bba3afefee1fa68aa6bd1fd597ea4b11a16e
- https://git.kernel.org/stable/c/bcb90a2834c7393c26df9609b889a3097b7700cd
- https://git.kernel.org/stable/c/ed8efd623a5738e03de09dd74b505d0fb77b09f3
- https://git.kernel.org/stable/c/f5d27ad99fcaa7d965b344dd0b00d9413585c3cb
- https://www.bencteux.fr/posts/missing_syscalls_audit/