Richard Yao 050517c41b icp: Use explicit_memset() exclusively in gcm_clear_ctx() ... d634d20d1b had been intended to fix a potential information leak issue where the compiler's optimization passes appeared to remove `memset()` operations that sanitize sensitive data before memory is freed for use by the rest of the kernel. When I wrote it, I had assumed that the compiler would not remove the other `memset()` operations, but upon reflection, I have realized that this was a bad assumption to make. I would rather have a very slight amount of additional overhead when calling `gcm_clear_ctx()` than risk a future compiler remove `memset()` calls. This is likely to happen if someone decides to try doing link time optimization and the person will not think to audit the assembly output for issues like this, so it is best to preempt the possibility before it happens. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Rob Norris <robn@despairlabs.com> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Jorgen Lundman <lundman@lundman.net> Signed-off-by: Richard Yao <richard@ryao.dev> Closes #17343 (cherry picked from commit d8a33bc0a5)		2025-05-27 14:41:45 -07:00
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algs	icp: Use explicit_memset() exclusively in gcm_clear_ctx()	2025-05-27 14:41:45 -07:00
api	Cleanup: Remove unnecessary explicit casts of pointers from allocators	2023-01-12 15:59:12 -08:00
asm-aarch64	Do no use .cfi_negate_ra_state within the assembly on Arm64	2024-04-29 13:50:05 -07:00
asm-arm/sha2	module/icp/asm-arm/sha2: enable non-SIMD asm kernels on armv5/6	2024-08-26 15:10:16 -07:00
asm-ppc64	powerpc64: Support ELFv2 asm on Big Endian	2023-04-27 12:49:21 -07:00
asm-x86_64	Restore ASMABI and other Unify work	2023-03-06 15:24:05 -08:00
core	Cleanup: Remove unneeded semicolons	2023-01-12 16:00:30 -08:00
include	Add generic implementation handling and SHA2 impl	2023-03-02 13:52:21 -08:00
io	Use memset to zero stack allocations containing unions	2024-07-17 14:54:47 -07:00
spi	Replace dead opensolaris.org license link	2022-07-11 14:16:13 -07:00
illumos-crypto.c	Replace dead opensolaris.org license link	2022-07-11 14:16:13 -07:00