[PATCH net-next v2 0/2] net: isolate SKB data area allocations

From: Pedro Falcato

Date: Thu Jun 11 2026 - 08:51:01 EST


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.

v2:
- Pick up A-b, R-b tags (thanks everyone!)
- Cover kmalloc_pfmemalloc as well (Harry)

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 | 8 ++++++--
2 files changed, 11 insertions(+), 4 deletions(-)

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2.54.0