diff options
| author | Yevgeny Kliteynik <kliteyn@nvidia.com> | 2025-01-02 20:14:10 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-02-08 09:57:10 +0100 |
| commit | 92cff996624c4757d5bbace3dfa3f1567ba94143 (patch) | |
| tree | 2976d4a74c8e4fde0b681db025057f30f06c4275 | |
| parent | 8937f5e38a218531dce2a89fae60e3adcc2311e1 (diff) | |
net/mlx5: HWS, fix definer's HWS_SET32 macro for negative offset
[ Upstream commit be482f1d10da781db9445d2753c1e3f1fd82babf ]
When bit offset for HWS_SET32 macro is negative,
UBSAN complains about the shift-out-of-bounds:
UBSAN: shift-out-of-bounds in
drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c:177:2
shift exponent -8 is negative
Fixes: 74a778b4a63f ("net/mlx5: HWS, added definers handling")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Erez Shitrit <erezsh@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250102181415.1477316-12-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_definer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_definer.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_definer.c index 3f4c58bada37..ab5f8f07f1f7 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_definer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws_definer.c @@ -70,7 +70,7 @@ u32 second_dw_mask = (mask) & ((1 << _bit_off) - 1); \ _HWS_SET32(p, (v) >> _bit_off, byte_off, 0, (mask) >> _bit_off); \ _HWS_SET32(p, (v) & second_dw_mask, (byte_off) + DW_SIZE, \ - (bit_off) % BITS_IN_DW, second_dw_mask); \ + (bit_off + BITS_IN_DW) % BITS_IN_DW, second_dw_mask); \ } else { \ _HWS_SET32(p, v, byte_off, (bit_off), (mask)); \ } \ |