Revision d81916910f7498fe7a768697e0101d488f9fe665 authored by Yang Yingliang on 29 October 2022, 08:29:31 UTC, committed by Huacai Chen on 29 October 2022, 08:29:31 UTC
Currently the return value of 'sub_driver->init' is not checked. If
sparse_keymap_setup() called in the init function fails, 'generic_
inputdev' is freed, then it will lead a UAF when using it in generic_
acpi_laptop_init(). Fix it by checking the return value and setting
generic_inputdev to NULL after free, so as to avoid double free it.
The error code in generic_subdriver_init() is always negative, so the
return of generic_subdriver_init() can be simplified.
Fixes: 6246ed09111f ("LoongArch: Add ACPI-based generic laptop driver")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
1 parent fbe605a
| File | Mode | Size |
|---|---|---|
| Kconfig | -rw-r--r-- | 1.6 KB |
| Makefile | -rw-r--r-- | 824 bytes |
| ac97c.c | -rw-r--r-- | 8.3 KB |
| db1000.c | -rw-r--r-- | 1.4 KB |
| db1200.c | -rw-r--r-- | 5.3 KB |
| dbdma2.c | -rw-r--r-- | 9.1 KB |
| dma.c | -rw-r--r-- | 8.6 KB |
| i2sc.c | -rw-r--r-- | 7.4 KB |
| psc-ac97.c | -rw-r--r-- | 12.5 KB |
| psc-i2s.c | -rw-r--r-- | 10.6 KB |
| psc.h | -rw-r--r-- | 1014 bytes |
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