This is a note to let you know that I've just added the patch titled
syscalls: Fix offset type of ksys_ftruncate()
to the 5.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
syscalls-fix-offset-type-of-ksys_ftruncate.patch
and it can be found in the queue-5.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8e742aa79780b13cd300a42198c1a4cea9c89905 Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@xxxxxxx>
Date: Wed, 10 Jun 2020 13:48:51 +0200
Subject: syscalls: Fix offset type of ksys_ftruncate()
From: Jiri Slaby <jslaby@xxxxxxx>
commit 8e742aa79780b13cd300a42198c1a4cea9c89905 upstream.
After the commit below, truncate() on x86 32bit uses ksys_ftruncate(). But
ksys_ftruncate() truncates the offset to unsigned long.
Switch the type of offset to loff_t which is what do_sys_ftruncate()
expects.
Fixes: 121b32a58a3a (x86/entry/32: Use IA32-specific wrappers for syscalls taking 64-bit arguments)
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Reviewed-by: Brian Gerst <brgerst@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20200610114851.28549-1-jslaby@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/syscalls.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -1358,7 +1358,7 @@ static inline long ksys_lchown(const cha
extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
-static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
+static inline long ksys_ftruncate(unsigned int fd, loff_t length)
{
return do_sys_ftruncate(fd, length, 1);
}
Patches currently in stable-queue which might be from jslaby@xxxxxxx are
queue-5.7/syscalls-fix-offset-type-of-ksys_ftruncate.patch
