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| author | Junrui Luo <moonafterrain@outlook.com> | 2026-01-29 00:55:13 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-02-11 13:41:55 +0100 |
| commit | 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9 (patch) | |
| tree | ec03ee5a48fabfa2ed19239433beafbd2d494320 /tools/perf/scripts/python | |
| parent | 4640fa5ad5e1a0dbd1c2d22323b7d70a8107dcfd (diff) | |
dpaa2-switch: add bounds check for if_id in IRQ handler
[ Upstream commit 31a7a0bbeb006bac2d9c81a2874825025214b6d8 ]
The IRQ handler extracts if_id from the upper 16 bits of the hardware
status register and uses it to index into ethsw->ports[] without
validation. Since if_id can be any 16-bit value (0-65535) but the ports
array is only allocated with sw_attr.num_ifs elements, this can lead to
an out-of-bounds read potentially.
Add a bounds check before accessing the array, consistent with the
existing validation in dpaa2_switch_rx().
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Reported-by: Junrui Luo <moonafterrain@outlook.com>
Fixes: 24ab724f8a46 ("dpaa2-switch: use the port index in the IRQ handler")
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Link: https://patch.msgid.link/SYBPR01MB7881D420AB43FF1A227B84AFAF91A@SYBPR01MB7881.ausprd01.prod.outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions