| From | Sasha Levin <> | Subject | [PATCH 5.7 208/265] syscalls: Fix offset type of ksys_ftruncate() | Date | Mon, 29 Jun 2020 11:17:21 -0400 |
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From: Jiri Slaby <jslaby@suse.cz>
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@suse.cz> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Brian Gerst <brgerst@gmail.com> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20200610114851.28549-1-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- include/linux/syscalls.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 1815065d52f37..1b0c7813197b0 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -1358,7 +1358,7 @@ static inline long ksys_lchown(const char __user *filename, uid_t user, 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); } -- 2.25.1
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