This is a rather simple series that attempts to address a possible exploitation avenue - the allocation of skbs around the network stack, which frequently get user-controlled contents. Found while doing some amateur exploitation analysis for some other issue, elsewhere.
Patch 0 is a precursor patch that adds a slab allocation helper, patch 1 does the actual bucketing. I don't know what tree should pick this up, so I just based this on linux-next. Pedro Falcato (2): mm/slab: add a node-track-caller variant for kmem buckets allocation net: skb: isolate skb data area allocations into a separate bucket include/linux/slab.h | 7 +++++-- net/core/skbuff.c | 5 ++++- 2 files changed, 9 insertions(+), 3 deletions(-) -- 2.54.0
