Minchan Kim d14850835c ANDROID: mm: page_pinner: use put_user_page at seq_print_vma_name ...

seq_print_vma_name uses get_user_pages_remote so it should
use put_user_page to close false positive of page_pinner.

Page pinned via pid 930, ts 38241618218 ns
PFN 10351665 Block 10109 type CMA Flags 0x8000000000080034(uptodate|lru|active|swapbacked)
 __set_page_pinner+0x34/0xb4
 try_grab_page+0x18c/0x1a0
 follow_page_pte+0x2b4/0x4a8
 follow_pmd_mask+0x180/0x4a4
 __get_user_pages+0x1a0/0x434
 __get_user_pages_remote+0xa4/0x28c
 get_user_pages_remote+0x20/0x48
 seq_print_vma_name+0xa4/0x1f4
 show_smap+0x114/0x25c
 seq_read_iter+0x2e8/0x3e8
 seq_read+0xec/0x124
 vfs_read+0xe0/0x2dc
 ksys_read+0x7c/0xec
 __arm64_sys_read+0x20/0x30
 el0_svc_common+0xa4/0x180
 do_el0_svc+0x28/0x88

Bug: 183414571
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Minchan Kim <minchan@google.com>
Change-Id: Ib81ccbc486877aab5e561ef516cedcbb172736f1

2021-04-30 09:13:35 -07:00

..

array.c

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base.c

FROMLIST: procfs: Allow reading fdinfo with PTRACE_MODE_READ

2021-02-10 14:13:43 +00:00

bootconfig.c

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cmdline.c

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consoles.c

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cpuinfo.c

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devices.c

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fd.c

FROMLIST: BACKPORT: procfs/dmabuf: Add inode number to /proc/*/fdinfo

2021-02-10 14:13:53 +00:00

fd.h

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generic.c

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inode.c

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internal.h

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interrupts.c

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Kconfig

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kcore.c

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kmsg.c

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loadavg.c

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Makefile

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meminfo.c

ANDROID: vendor_hooks: Add hooks for memory when debug

2021-03-19 04:54:07 +00:00

namespaces.c

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nommu.c

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page.c

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proc_net.c

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proc_sysctl.c

proc: use kvzalloc for our kernel buffer

2021-03-04 11:38:21 +01:00

proc_tty.c

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root.c

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self.c

proc: don't allow async path resolution of /proc/thread-self components

2021-03-04 11:38:42 +01:00

softirqs.c

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stat.c

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task_mmu.c

ANDROID: mm: page_pinner: use put_user_page at seq_print_vma_name

2021-04-30 09:13:35 -07:00

task_nommu.c

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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

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util.c

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version.c

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vmcore.c

…