The patch titled
Subject: proc-kcore-hold-lock-during-read-fix
has been added to the -mm tree. Its filename is
proc-kcore-hold-lock-during-read-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/proc-kcore-hold-lock-during-read-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/proc-kcore-hold-lock-during-read-fix.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: proc-kcore-hold-lock-during-read-fix
fix locking bug reported by Tetsuo Handa
Cc: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Bhupesh Sharma <bhsharma@xxxxxxxxxx>
Cc: Eric Biederman <ebiederm@xxxxxxxxxxxx>
Cc: James Morse <james.morse@xxxxxxx>
Cc: Omar Sandoval <osandov@xxxxxx>
Cc: Tetsuo Handa <penguin-kernel@xxxxxxxxxxxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/kcore.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/proc/kcore.c~proc-kcore-hold-lock-during-read-fix fs/proc/kcore.c
--- a/fs/proc/kcore.c~proc-kcore-hold-lock-during-read-fix
+++ a/fs/proc/kcore.c
@@ -551,7 +551,7 @@ read_kcore(struct file *file, char __use
}
out:
- up_write(&kclist_lock);
+ up_read(&kclist_lock);
if (ret)
return ret;
return orig_buflen - buflen;
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
i-need-old-gcc.patch
arm-arch-arm-include-asm-pageh-needs-personalityh.patch
ocfs2-return-erofs-when-filesystem-becomes-read-only-checkpatch-fixes.patch
mm.patch
tools-modifying-page-types-to-include-shared-map-counts-checkpatch-fixes.patch
tools-modifying-page-types-to-include-shared-map-counts-fix-checkpatch-fixes.patch
tools-adding-support-for-idle-page-tracking-to-tool-fix.patch
mm-drop-vm_bug_on-from-__get_free_pages-fix.patch
mm-list_lruc-fold-__list_lru_count_one-into-its-caller.patch
mm-fadvise-fix-signed-overflow-ubsan-complaint-fix.patch
mm-sparsemem-defer-the-ms-section_mem_map-clearing-fix.patch
mm-sparse-optimize-memmap-allocation-during-sparse_init-checkpatch-fixes.patch
mm-sparse-abstract-sparse-buffer-allocations-fix.patch
mm-sparse-abstract-sparse-buffer-allocations-fix-fix.patch
mm-soft-offline-close-the-race-against-page-allocation-fix.patch
add-oom-victims-memcg-to-the-oom-context-information-fix.patch
mm-oom-distinguish-blockable-mode-for-mmu-notifiers-checkpatch-fixes.patch
mm-oom-distinguish-blockable-mode-for-mmu-notifiers-fix.patch
list_lru-prefetch-neighboring-list-entries-before-acquiring-lock-fix.patch
mm-oom-cgroup-aware-oom-killer-fix.patch
mm-oom-cgroup-aware-oom-killer-fix-2.patch
mm-oom-docs-describe-the-cgroup-aware-oom-killer-fix-2-fix.patch
kernel-hung_taskc-allow-to-set-checking-interval-separately-from-timeout-fix.patch
lib-test_crc-add-test-cases-for-crc-calculation-fix.patch
linux-next-rejects.patch
kernel-forkc-export-kernel_thread-to-modules.patch
slab-leaks3-default-y.patch
proc-kcore-hold-lock-during-read-fix.patch
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