Re: [PATCH 11/15] mips: fix n32 compat_ipc_parse_version

[PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 01/15] ia64: add __NR_umount2 definition · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 05/15] alpha: update syscall macro definitions · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 07/15] ARM: add kexec_file_load system call number · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 07/15] ARM: add kexec_file_load system call number · Will Deacon <hidden> · 2019-01-10
Re: [PATCH 07/15] ARM: add kexec_file_load system call number · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 09/15] sh: remove duplicate unistd_32.h file · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 10/15] sh: add statx system call · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 14/15] arch: add split IPC system calls where needed · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Heiko Carstens <hidden> · 2019-01-10
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Arnd Bergmann <arnd@arndb.de> · 2019-01-11
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Michael Ellerman <mpe@ellerman.id.au> · 2019-01-14
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Michael Ellerman <mpe@ellerman.id.au> · 2019-01-14
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Michael Ellerman <mpe@ellerman.id.au> · 2019-01-14
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Arnd Bergmann <arnd@arndb.de> · 2019-01-15
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Arnd Bergmann <arnd@arndb.de> · 2019-01-15
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Geert Uytterhoeven <geert@linux-m68k.org> · 2019-01-15
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Arnd Bergmann <arnd@arndb.de> · 2019-01-15
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Michael Ellerman <mpe@ellerman.id.au> · 2019-01-16
Re: [PATCH 14/15] arch: add split IPC system calls where needed · Michael Ellerman <mpe@ellerman.id.au> · 2019-01-16
[PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere · Heiko Carstens <hidden> · 2019-01-10
Re: [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere · Arnd Bergmann <arnd@arndb.de> · 2019-01-11
Re: [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere · Heiko Carstens <hidden> · 2019-01-14
Re: [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere · Russell King - ARM Linux admin <linux@armlinux.org.uk> · 2019-01-15
Re: [PATCH 15/15] arch: add pkey and rseq syscall numbers everywhere · Arnd Bergmann <arnd@arndb.de> · 2019-01-15
[PATCH 13/15] ipc: rename old-style shmctl/semctl/msgctl syscalls · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 08/15] m68k: assign syscall number for seccomp · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 06/15] ARM: add migrate_pages() system call · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 06/15] ARM: add migrate_pages() system call · Will Deacon <hidden> · 2019-01-10
Re: [PATCH 06/15] ARM: add migrate_pages() system call · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 04/15] alpha: wire up io_pgetevents system call · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 02/15] ia64: add statx and io_pgetevents syscalls · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 11/15] mips: fix n32 compat_ipc_parse_version · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 11/15] mips: fix n32 compat_ipc_parse_version · Paul Burton <hidden> · 2019-01-10
Re: [PATCH 11/15] mips: fix n32 compat_ipc_parse_version · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 11/15] mips: fix n32 compat_ipc_parse_version · Paul Burton <hidden> · 2019-01-11
[PATCH 03/15] ia64: assign syscall numbers for perf and seccomp · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
[PATCH 12/15] sparc64: fix sparc_ipc type conversion · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Geert Uytterhoeven <geert@linux-m68k.org> · 2019-01-10
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Geert Uytterhoeven <geert@linux-m68k.org> · 2019-01-10
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Geert Uytterhoeven <geert@linux-m68k.org> · 2019-01-11
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Joseph Myers <hidden> · 2019-01-10
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Arnd Bergmann <arnd@arndb.de> · 2019-01-10
Re: [PATCH 00/15] arch: synchronize syscall tables in preparation for y2038 · Michael Cree <hidden> · 2019-01-10

From: Paul Burton <hidden>
Date: 2019-01-11 19:25:32
Also in: linux-alpha, linux-arm-kernel, linux-s390, linuxppc-dev

Hello,

Arnd Bergmann wrote:

While reading through the sysvipc implementation, I noticed that the n32
semctl/shmctl/msgctl system calls behave differently based on whether
o32 support is enabled or not: Without o32, the IPC_64 flag passed by
user space is rejected but calls without that flag get IPC_64 behavior.

As far as I can tell, this was inadvertently changed by a cleanup patch
but never noticed by anyone, possibly nobody has tried using sysvipc
on n32 after linux-3.19.

Change it back to the old behavior now.

Fixes: 78aaf956ba3a ("MIPS: Compat: Fix build error if CONFIG_MIPS32_COMPAT but no compat ABI.")
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Applied to mips-fixes.

Thanks,
    Paul

[ This message was auto-generated; if you believe anything is incorrect
  then please email paul.burton@mips.com to report it. ]
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