lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Tue, 24 Jan 2017 08:55:43 +0100
From:   Greg Kroah-Hartman <>
Cc:     Greg Kroah-Hartman <>,, Dave Martin <>,
        Will Deacon <>,
        Catalin Marinas <>
Subject: [PATCH 4.4 33/42] arm64/ptrace: Avoid uninitialised struct padding in fpr_set()

4.4-stable review patch.  If anyone has any objections, please let me know.


From: Dave Martin <>

commit aeb1f39d814b2e21e5e5706a48834bfd553d0059 upstream.

This patch adds an explicit __reserved[] field to user_fpsimd_state
to replace what was previously unnamed padding.

This ensures that data in this region are propagated across
assignment rather than being left possibly uninitialised at the

Fixes: 60ffc30d5652 ("arm64: Exception handling")
Signed-off-by: Dave Martin <>
Acked-by: Will Deacon <>
Signed-off-by: Catalin Marinas <>
Signed-off-by: Greg Kroah-Hartman <>

 arch/arm64/include/uapi/asm/ptrace.h |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm64/include/uapi/asm/ptrace.h
+++ b/arch/arm64/include/uapi/asm/ptrace.h
@@ -76,6 +76,7 @@ struct user_fpsimd_state {
 	__uint128_t	vregs[32];
 	__u32		fpsr;
 	__u32		fpcr;
+	__u32		__reserved[2];
 struct user_hwdebug_state {

Powered by blists - more mailing lists