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Message-Id: <20240620162316.3674955-4-arnd@kernel.org> Date: Thu, 20 Jun 2024 18:23:04 +0200 From: Arnd Bergmann <arnd@...nel.org> To: linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org Cc: Arnd Bergmann <arnd@...db.de>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, linux-mips@...r.kernel.org, Helge Deller <deller@....de>, linux-parisc@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, Andreas Larsson <andreas@...sler.com>, sparclinux@...r.kernel.org, Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, Christophe Leroy <christophe.leroy@...roup.eu>, "Naveen N . Rao" <naveen.n.rao@...ux.ibm.com>, linuxppc-dev@...ts.ozlabs.org, Brian Cain <bcain@...cinc.com>, linux-hexagon@...r.kernel.org, Guo Ren <guoren@...nel.org>, linux-csky@...r.kernel.org, Heiko Carstens <hca@...ux.ibm.com>, linux-s390@...r.kernel.org, Rich Felker <dalias@...c.org>, John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>, linux-sh@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>, Alexander Viro <viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>, linux-fsdevel@...r.kernel.org, libc-alpha@...rceware.org, musl@...ts.openwall.com, ltp@...ts.linux.it Subject: [PATCH 03/15] mips: fix compat_sys_lseek syscall From: Arnd Bergmann <arnd@...db.de> This is almost compatible, but passing a negative offset should result in a EINVAL error, but on mips o32 compat mode would seek to a large 32-bit byte offset. Use compat_sys_lseek() to correctly sign-extend the argument. Signed-off-by: Arnd Bergmann <arnd@...db.de> --- arch/mips/kernel/syscalls/syscall_o32.tbl | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 85751c9b9cdb..2439a2491cff 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -27,7 +27,7 @@ 17 o32 break sys_ni_syscall # 18 was sys_stat 18 o32 unused18 sys_ni_syscall -19 o32 lseek sys_lseek +19 o32 lseek sys_lseek compat_sys_lseek 20 o32 getpid sys_getpid 21 o32 mount sys_mount 22 o32 umount sys_oldumount -- 2.39.2
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