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| author | Samuel Holland <[email protected]> | 2022-12-27 12:44:44 -0600 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2023-01-13 17:39:42 +0530 |
| commit | da5594bf853d9c635aee14bce3abc1076641e395 (patch) | |
| tree | 49fd8fe3712f199c5635f062b221d7398131e263 /lib/utils/timer | |
| parent | 001106d19b21cd6443ae7f7f6d4d048d80e9ecac (diff) | |
platform: generic: allwinner: Fix PLIC array bounds
The two referenced commits passed incorrect bounds to the PLIC save/
restore functions, causing out-of-bounds memory access. The functions
expect "num" to be the 1-based number of interrupt sources, equivalent
to the "riscv,ndev" devicetree property. Thus, "num" must be strictly
smaller than the 0-based size of the array storing the register values.
However, the referenced commits incorrectly passed in the unmodified
size of the array as "num". Fix this by reducing PLIC_SOURCES (matching
"riscv,ndev" on this platform), while keeping the same array sizes.
Addresses-Coverity-ID: 1530251 ("Out-of-bounds access")
Addresses-Coverity-ID: 1530252 ("Out-of-bounds access")
Fixes: 8509e46ca63a ("lib: utils/irqchip: plic: Ensure no out-of-bound access in priority save/restore helpers")
Fixes: 9a2eeb4aaeac ("lib: utils/irqchip: plic: Ensure no out-of-bound access in context save/restore helpers")
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Diffstat (limited to 'lib/utils/timer')
0 files changed, 0 insertions, 0 deletions