lisa/android_kernel_xiaomi_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mips: fix compat_sys_lseek syscall

Browse Source 
[ Upstream commit 0d5679a0aae2d8cda72169452c32e5cb88a7ab33 ]

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@arndb.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Arnd Bergmann 2024-06-20 18:23:04 +02:00 committed by Greg Kroah-Hartman
parent 922371a064
commit 409299623a
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/kernel/syscalls/syscall_o32.tbl
View File

@ -27,7 +27,7 @@
17 o32 break sys_ni_syscall 17 o32 break sys_ni_syscall
# 18 was sys_stat # 18 was sys_stat
18 o32 unused18 sys_ni_syscall 18 o32 unused18 sys_ni_syscall
19 o32 lseek sys_lseek 19 o32 lseek sys_lseek compat_sys_lseek
20 o32 getpid sys_getpid 20 o32 getpid sys_getpid
21 o32 mount sys_mount compat_sys_mount 21 o32 mount sys_mount compat_sys_mount
22 o32 umount sys_oldumount 22 o32 umount sys_oldumount