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| author |   Sabrina Dubroca <sd@queasysnail.net> | 2025-08-29 20:55:40 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-09-01 13:31:33 -0700 |
| commit | 030e1c45666629f72d0fc1d040f9d2915680de8e (patch) | |
| tree | 39a9e738d8a8c460f9d8d3be7ee114dee370a5f0 /tools/perf/scripts/python | |
| parent | net: macb: Fix tx_ptr_lock locking (diff) | |
| download | wireguard-linux-030e1c45666629f72d0fc1d040f9d2915680de8e.tar.xz wireguard-linux-030e1c45666629f72d0fc1d040f9d2915680de8e.zip | |
macsec: read MACSEC_SA_ATTR_PN with nla_get_uint
The code currently reads both U32 attributes and U64 attributes as
U64, so when a U32 attribute is provided by userspace (ie, when not
using XPN), on big endian systems, we'll load that value into the
upper 32bits of the next_pn field instead of the lower 32bits. This
means that the value that userspace provided is ignored (we only care
about the lower 32bits for non-XPN), and we'll start using PNs from 0.
Switch to nla_get_uint, which will read the value correctly on all
arches, whether it's 32b or 64b.
Fixes: 48ef50fa866a ("macsec: Netlink support of XPN cipher suites (IEEE 802.1AEbw)")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/1c1df1661b89238caf5beefb84a10ebfd56c66ea.1756459839.git.sd@queasysnail.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions