tmp_suning_uos_patched/fs/proc
Marcelo Henrique Cerri fc6ac92cfc proc: Avoid mixing integer types in mem_rw()
[ Upstream commit d238692b4b9f2c36e35af4c6e6f6da36184aeb3e ]

Use size_t when capping the count argument received by mem_rw(). Since
count is size_t, using min_t(int, ...) can lead to a negative value
that will later be passed to access_remote_vm(), which can cause
unexpected behavior.

Since we are capping the value to at maximum PAGE_SIZE, the conversion
from size_t to int when passing it to access_remote_vm() as "len"
shouldn't be a problem.

Link: https://lkml.kernel.org/r/20210512125215.3348316-1-marcelo.cerri@canonical.com
Reviewed-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri@canonical.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Souza Cascardo <cascardo@canonical.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-28 14:35:42 +02:00
..
array.c seccomp: Fix CONFIG tests for Seccomp_filters 2021-05-14 09:50:24 +02:00
base.c proc: Avoid mixing integer types in mem_rw() 2021-07-28 14:35:42 +02:00
bootconfig.c proc/bootconfig: Fix to use correct quotes for value 2020-06-16 21:21:03 -04:00
cmdline.c
consoles.c
cpuinfo.c proc/cpuinfo: switch to ->read_iter 2020-11-06 10:05:18 -08:00
devices.c block: move block-related definitions out of fs.h 2020-06-24 09:16:02 -06:00
fd.c
fd.h
generic.c fs/proc/generic.c: fix incorrect pde_is_permanent check 2021-05-19 10:13:09 +02:00
inode.c proc: wire up generic_file_splice_read for iter ops 2020-11-06 10:05:18 -08:00
internal.h proc: fix lookup in /proc/net subdirectories after setns(2) 2020-12-30 11:53:56 +01:00
interrupts.c
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
kcore.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
kmsg.c
loadavg.c
Makefile
meminfo.c proc/meminfo: avoid open coded reading of vm_committed_as 2020-08-07 11:33:26 -07:00
namespaces.c
nommu.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
page.c mm: Add PG_arch_2 page flag 2020-09-04 12:46:06 +01:00
proc_net.c proc: fix lookup in /proc/net subdirectories after setns(2) 2020-12-30 11:53:56 +01:00
proc_sysctl.c proc: use kvzalloc for our kernel buffer 2021-03-04 11:38:21 +01:00
proc_tty.c
root.c proc: s_fs_info may be NULL when proc_kill_sb is called 2020-06-10 14:54:54 -05:00
self.c proc: don't allow async path resolution of /proc/thread-self components 2021-03-04 11:38:42 +01:00
softirqs.c
stat.c proc/stat: switch to ->read_iter 2020-11-06 10:05:18 -08:00
task_mmu.c mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled() 2021-07-14 16:56:50 +02:00
task_nommu.c mmap locking API: use coccinelle to convert mmap_sem rwsem call sites 2020-06-09 09:39:14 -07:00
thread_self.c proc: don't allow async path resolution of /proc/thread-self components 2021-03-04 11:38:42 +01:00
uptime.c
util.c
version.c
vmcore.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00