cddf9fc70b
[ Upstream commit 3ed5f415133f9b7518fbe55ba9ae9a3f5e700929 ]
The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.
To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes:
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| kcmproc.c | ||
| kcmsock.c | ||