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(-) 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
