Re: [PATCH 02/15] syscalls: fix compat_sys_io_pgetevents_time64 usage
Heiko Carstens <[email protected]>
| Newsgroups | gmane.linux.ports.ppc.embedded,gmane.linux.ports.mips,gmane.linux.ports.sparc,gmane.linux.kernel.cross-arch,gmane.linux.ports.sh.devel,gmane.linux.lib.musl.general,gmane.linux.ltp,gmane.comp.lib.glibc.alpha,gmane.linux.kernel,gmane.linux.kernel.stable,gmane.linux.ports.hexagon,gmane.linux.file-systems |
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| Message-ID | <[email protected]> |
On Thu, Jun 20, 2024 at 06:23:03PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <[email protected]> > > Using sys_io_pgetevents() as the entry point for compat mode tasks > works almost correctly, but misses the sign extension for the min_nr > and nr arguments. > > This was addressed on parisc by switching to > compat_sys_io_pgetevents_time64() in commit 6431e92fc827 ("parisc: > io_pgetevents_time64() needs compat syscall in 32-bit compat mode"), > as well as by using more sophisticated system call wrappers on x86 and > s390. However, arm64, mips, powerpc, sparc and riscv still have the > same bug. > > Changes all of them over to use compat_sys_io_pgetevents_time64() > like parisc already does. This was clearly the intention when the > function was originally added, but it got hooked up incorrectly in > the tables. > > Cc: [email protected] > Fixes: 48166e6ea47d ("y2038: add 64-bit time_t syscalls to all 32-bit architectures") > Signed-off-by: Arnd Bergmann <[email protected]> > --- > arch/arm64/include/asm/unistd32.h | 2 +- > arch/mips/kernel/syscalls/syscall_n32.tbl | 2 +- > arch/mips/kernel/syscalls/syscall_o32.tbl | 2 +- > arch/powerpc/kernel/syscalls/syscall.tbl | 2 +- > arch/s390/kernel/syscalls/syscall.tbl | 2 +- > arch/sparc/kernel/syscalls/syscall.tbl | 2 +- > arch/x86/entry/syscalls/syscall_32.tbl | 2 +- > include/uapi/asm-generic/unistd.h | 2 +- > 8 files changed, 8 insertions(+), 8 deletions(-) Acked-by: Heiko Carstens <[email protected]> # s390