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linux-stable-mirror/arch/sh/include/asm
Al Viro 8beb18c25b sh: sanitize the flags on sigreturn
[ Upstream commit 573b22ccb7 ]

We fetch %SR value from sigframe; it might have been modified by signal
handler, so we can't trust it with any bits that are not modifiable in
user mode.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rich Felker <dalias@libc.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:23:39 +02:00
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