The patch titled
Subject: drivers/edac/amd64_edac.c:__amd64_set_scrub_rate(): avoid overindexing scrubrates[]
has been removed from the -mm tree. Its filename was
drivers-edac-amd64_edacc-__amd64_set_scrub_rate-avoid-overindexing-scrubrates.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: drivers/edac/amd64_edac.c:__amd64_set_scrub_rate(): avoid overindexing scrubrates[]
If none of the elements in scrubrates[] matches, this loop will cause
__amd64_set_scrub_rate() to incorrectly use the n+1th element.
As the function is designed to use the final scrubrates[] element in the
case of no match, we can fix this bug by simply terminating the array
search at the n-1th element.
Reported-by: Denis Kirjanov <kirjanov@xxxxxxxxx>
Cc: Doug Thompson <dougthompson@xxxxxxxxxxxx>
Cc: Borislav Petkov <borislav.petkov@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/edac/amd64_edac.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff -puN drivers/edac/amd64_edac.c~drivers-edac-amd64_edacc-__amd64_set_scrub_rate-avoid-overindexing-scrubrates drivers/edac/amd64_edac.c
--- a/drivers/edac/amd64_edac.c~drivers-edac-amd64_edacc-__amd64_set_scrub_rate-avoid-overindexing-scrubrates
+++ a/drivers/edac/amd64_edac.c
@@ -170,8 +170,11 @@ static int __amd64_set_scrub_rate(struct
* memory controller and apply to register. Search for the first
* bandwidth entry that is greater or equal than the setting requested
* and program that. If at last entry, turn off DRAM scrubbing.
+ *
+ * If no suitable bandwidth is found, turn off DRAM scrubbing entirely
+ * by falling back to the last element in scrubrates[].
*/
- for (i = 0; i < ARRAY_SIZE(scrubrates); i++) {
+ for (i = 0; i < ARRAY_SIZE(scrubrates) - 1; i++) {
/*
* skip scrub rates which aren't recommended
* (see F10 BKDG, F3x58)
@@ -181,12 +184,6 @@ static int __amd64_set_scrub_rate(struct
if (scrubrates[i].bandwidth <= new_bw)
break;
-
- /*
- * if no suitable bandwidth found, turn off DRAM scrubbing
- * entirely by falling back to the last element in the
- * scrubrates array.
- */
}
scrubval = scrubrates[i].scrubval;
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
revert-tools-testing-selftests-epoll-test_epollc-fix-build.patch
revert-epoll-support-for-disabling-items-and-a-self-test-app.patch
linux-next.patch
linux-next-git-rejects.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch
cpu_hotplug-unmap-cpu2node-when-the-cpu-is-hotremoved-fix.patch
arch-x86-platform-iris-irisc-register-a-platform-device-and-a-platform-driver.patch
arch-x86-tools-insn_sanityc-identify-source-of-messages.patch
mm.patch
mm-introduce-mm_find_pmd-fix.patch
memory-hotplug-update-mce_bad_pages-when-removing-the-memory-fix.patch
slub-hotplug-ignore-unrelated-nodes-hot-adding-and-hot-removing.patch
drop_caches-add-some-documentation-and-info-messsge-checkpatch-fixes.patch
swap-add-a-simple-detector-for-inappropriate-swapin-readahead-fix.patch
scripts-pnmtologo-fix-for-plain-pbm-checkpatch-fixes.patch
drivers-video-backlight-lp855x_blc-use-generic-pwm-functions-fix.patch
drivers-firmware-dmi_scanc-check-dmi-version-when-get-system-uuid-fix.patch
drivers-firmware-dmi_scanc-fetch-dmi-version-from-smbios-if-it-exists-checkpatch-fixes.patch
binfmt_elf-fix-corner-case-kfree-of-uninitialized-data-checkpatch-fixes.patch
hfsplus-add-support-of-manipulation-by-attributes-file-checkpatch-fixes.patch
fat-exportfs-rebuild-inode-if-ilookup-fails-fix.patch
procfs-add-vmflags-field-in-smaps-output-v4.patch
procfs-add-vmflags-field-in-smaps-output-v4-fix.patch
ipc-add-sysctl-to-specify-desired-next-object-id-checkpatch-fixes.patch
ipc-message-queue-receive-cleanup-checkpatch-fixes.patch
selftests-ipc-message-queue-copy-feature-test-checkpatch-fixes.patch
dma-debug-new-interfaces-to-debug-dma-mapping-errors-fix-fix.patch
journal_add_journal_head-debug.patch
kernel-forkc-export-kernel_thread-to-modules.patch
mutex-subsystem-synchro-test-module-fix.patch
slab-leaks3-default-y.patch
put_bh-debug.patch
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