Description
In the Linux kernel, the following vulnerability has been resolved: eth: nfp: drop the replaced rule from the list when reprogramming fails nfp_net_fs_add() replaces an existing rule by deleting it from the hardware, decrementing nn->fs.count and programming the new one. If nfp_net_fs_add_hw() fails the old entry stays on nn->fs.list - only the success path reaches list_replace() - so the list is one longer than nn->fs.count, and it advertises a rule whose hardware entry has already been torn down. nn->fs.count is what ETHTOOL_GRXCLSRLCNT reports, so userspace then sizes its buffer one entry short of what the GRXCLSRLALL walk wants to write. That used to overwrite one u32 past the allocation; since the walk is bounded it is a permanent -EMSGSIZE instead, as nothing ever resyncs the counter.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
9eb03bb1c035ff6e2c3a34046419446588253dda to < 603b70093f729f52a37544b48679903cad834856affected9eb03bb1c035ff6e2c3a34046419446588253dda to < edaec279f59f801a05b751df475ed71a0a68c88aaffected9eb03bb1c035ff6e2c3a34046419446588253dda to < 552e528a7d85cbe088b2ae4f78194713975b46cfaffected9eb03bb1c035ff6e2c3a34046419446588253dda to < 108bb2142e3a12c9ad625ad662973127a113ddc6affected
Linux Linux
Default version status: affected
6.8affected0 to < 6.8unaffected6.12.111 to ≤ 6.12.*unaffected6.18.53 to ≤ 6.18.*unaffected7.2.7 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected