Re: Coverity: add_early_randomness(): Integer handling issues

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Subject: Re: Coverity: add_early_randomness(): Integer handling issues
From: "Jason A. Donenfeld" <Jason@xxxxxxxxx>
Date: Tue, 8 Nov 2022 18:31:05 +0100
Cc: linux-kernel@xxxxxxxxxxxxxxx, "Theodore Ts'o" <tytso@xxxxxxx>, Dominik Brodowski <linux@xxxxxxxxxxxxxxxxxxxx>, Olivia Mackall <olivia@xxxxxxxxxxx>, linux-crypto@xxxxxxxxxxxxxxx, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>, "Gustavo A. R. Silva" <gustavo@xxxxxxxxxxxxxx>, linux-next@xxxxxxxxxxxxxxx, linux-hardening@xxxxxxxxxxxxxxx
In-reply-to: <202211080929.F5B344C9F@keescook>
References: <202211080929.F5B344C9F@keescook>

"If "bytes_read * 8 * rng->quality / 1024" is greater than 0x7FFFFFFF,
the upper bits of the result will all be 1."

Except "bytes_read" is an int. So false positive.

Jason

Follow-Ups:
- Re: Coverity: add_early_randomness(): Integer handling issues
  - From: Rasmus Villemoes

References:
- Coverity: add_early_randomness(): Integer handling issues
  - From: coverity-bot

Prev by Date: Coverity: add_early_randomness(): Integer handling issues
Next by Date: [syzbot] linux-next boot error: WARNING in kthread_should_stop
Previous by thread: Coverity: add_early_randomness(): Integer handling issues
Next by thread: Re: Coverity: add_early_randomness(): Integer handling issues
Index(es):
- Date
- Thread

[Index of Archives] [Kernel] [Gnu Classpath] [Gnu Crypto] [DM Crypt] [Netfilter] [Bugtraq]

Powered by Linux