Commit 73d9629e1c8c ("i40e: Do not allow untrusted VF to remove administratively set MAC") fixed an issue where untrusted VF was allowed to remove its own MAC address although this was assigned administratively from PF. Unfortunately the introduced check is wrong because it causes that MAC filters for other MAC addresses including multi-cast ones are not removed. <snip> if (ether_addr_equal(addr, vf->default_lan_addr.addr) && i40e_can_vf_change_mac(vf)) was_unimac_deleted = true; else continue; if (i40e_del_mac_filter(vsi, al->list[i].addr)) { ... </snip> The else path with `continue` effectively skips any MAC filter removal except one for primary MAC addr when VF is allowed to do so. Fix the check condition so the `continue` is only done for primary MAC address. Fixes: 73d9629e1c8c ("i40e: Do not allow untrusted VF to remove administratively set MAC") Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Reviewed-by: Brett Creeley <brett.creeley@amd.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://lore.kernel.org/r/20240329180638.211412-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the reStructuredText markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.
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