b5624be6d
Denys Vlasenko
2022-05-01
Subject
seedrng: reduce MAX_SEED_LEN from 512 to 256
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util-linux/seedrng.c+5 -1
| @@ -56,7 +56,11 @@ | |
| enum { | |
| MIN_SEED_LEN = SHA256_OUTSIZE, | |
| - | MAX_SEED_LEN = 512 |
| + | /* kernels < 5.18 could return short reads from getrandom() |
| + | * if signal is pending and length is > 256. |
| + | * Let's limit our reads to 256 bytes. |
| + | */ |
| + | MAX_SEED_LEN = 256, |
| }; | |
| static size_t determine_optimal_seed_len(void) | |