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| author |   Mike Pagano <mpagano@gentoo.org> | 2023-07-04 08:56:35 -0400 |
|---|---|---|
| committer | Mike Pagano <mpagano@gentoo.org> | 2023-07-04 08:56:35 -0400 |
| commit | 89834e8979d29abb5525573e5fb3456092f77ef8 (patch) | |
| tree | 238539434da0eb585b34ccf6857beb126d3b044b | |
| parent | execve: always mark stack as growing down during early stack setup (diff) | |
| download | linux-patches-89834e8979d29abb5525573e5fb3456092f77ef8.tar.gz linux-patches-89834e8979d29abb5525573e5fb3456092f77ef8.tar.bz2 linux-patches-89834e8979d29abb5525573e5fb3456092f77ef8.zip | |
mm: disable CONFIG_PER_VMA_LOCK by default until its fixed6.4-3
Signed-off-by: Mike Pagano <mpagano@gentoo.org>
| -rw-r--r-- | 0000_README | 4 | ||||
| -rw-r--r-- | 1805_mm-disable-CONFIG-PER-VMA-LOCK-by-def.patch | 35 |
2 files changed, 39 insertions, 0 deletions
diff --git a/0000_README b/0000_README index 38ee98e3..a09a44a9 100644 --- a/0000_README +++ b/0000_README @@ -63,6 +63,10 @@ Patch: 1800_mm-execve-mark-stack-as-growing-down.patch From: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Desc: execve: always mark stack as growing down during early stack setup +Patch: 1805_mm-disable-CONFIG-PER-VMA-LOCK-by-def.patch +From: https://lore.kernel.org/all/20230703182150.2193578-1-surenb@google.com/ +Desc: mm: disable CONFIG_PER_VMA_LOCK by default until its fixed + Patch: 2000_BT-Check-key-sizes-only-if-Secure-Simple-Pairing-enabled.patch From: https://lore.kernel.org/linux-bluetooth/20190522070540.48895-1-marcel@holtmann.org/raw Desc: Bluetooth: Check key sizes only when Secure Simple Pairing is enabled. See bug #686758 diff --git a/1805_mm-disable-CONFIG-PER-VMA-LOCK-by-def.patch b/1805_mm-disable-CONFIG-PER-VMA-LOCK-by-def.patch new file mode 100644 index 00000000..c98255a6 --- /dev/null +++ b/1805_mm-disable-CONFIG-PER-VMA-LOCK-by-def.patch @@ -0,0 +1,35 @@ +Subject: [PATCH 1/1] mm: disable CONFIG_PER_VMA_LOCK by default until its fixed +Date: Mon, 3 Jul 2023 11:21:50 -0700 [thread overview] +Message-ID: <20230703182150.2193578-1-surenb@google.com> (raw) + +A memory corruption was reported in [1] with bisection pointing to the +patch [2] enabling per-VMA locks for x86. +Disable per-VMA locks config to prevent this issue while the problem is +being investigated. This is expected to be a temporary measure. + +[1] https://bugzilla.kernel.org/show_bug.cgi?id=217624 +[2] https://lore.kernel.org/all/20230227173632.3292573-30-surenb@google.com + +Reported-by: Jiri Slaby <jirislaby@kernel.org> +Reported-by: Jacob Young <jacobly.alt@gmail.com> +Fixes: 0bff0aaea03e ("x86/mm: try VMA lock-based page fault handling first") +Signed-off-by: Suren Baghdasaryan <surenb@google.com> +--- + mm/Kconfig | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/mm/Kconfig b/mm/Kconfig +index 09130434e30d..de94b2497600 100644 +--- a/mm/Kconfig ++++ b/mm/Kconfig +@@ -1224,7 +1224,7 @@ config ARCH_SUPPORTS_PER_VMA_LOCK + def_bool n + + config PER_VMA_LOCK +- def_bool y ++ bool "Enable per-vma locking during page fault handling." + depends on ARCH_SUPPORTS_PER_VMA_LOCK && MMU && SMP + help + Allow per-vma locking during page fault handling. +-- +2.41.0.255.g8b1d071c50-goog |