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authorJustin M. Forbes <jforbes@fedoraproject.org>2020-10-07 09:54:44 -0500
committerJustin M. Forbes <jforbes@fedoraproject.org>2020-10-07 09:54:44 -0500
commitf7a55ba381de17d8e5511a97441944b797aa62a5 (patch)
treedf2cb85063e94e396b776ea25c0e4b5f9f286c39 /0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch
parent5f7d08ee5f8b230f5dfb20783ec265ef40387520 (diff)
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kernel-5.9.0-0.rc8.20201007git7575fdda569b.29
* Wed Oct 07 2020 Fedora Kernel Team <kernel-team@fedoraproject.org> [5.9.0-0.rc8.20201007git7575fdda569b.29] - Merge ark-patches Resolves: rhbz# Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
Diffstat (limited to '0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch')
-rw-r--r--0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch71
1 files changed, 0 insertions, 71 deletions
diff --git a/0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch b/0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch
deleted file mode 100644
index a8bf98d50..000000000
--- a/0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch
+++ /dev/null
@@ -1,71 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Murphy Zhou <jencce.kernel@gmail.com>
-Date: Sun, 29 Sep 2019 17:56:59 +0800
-Subject: [PATCH] mm/kmemleak: skip late_init if not skip disable
-
-Now if DEFAULT_OFF set to y, kmemleak_init will start the cleanup_work
-workqueue. Then late_init call will set kmemleak_initialized to 1, the
-cleaup workqueue will try to do cleanup, triggering:
-
-[24.738773] ==================================================================
-[24.742784] BUG: KASAN: global-out-of-bounds in __kmemleak_do_cleanup+0x166/0x180
-[24.744144] Key type ._fscrypt registered
-[24.745680] Read of size 8 at addr ffffffff88746c90 by task kworker/3:1/171
-[24.745687]
-[24.745697] CPU: 3 PID: 171 Comm: kworker/3:1 Not tainted 5.3.0-v5.3-12475-gcbafe18 #1
-[24.745701] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
-[24.745710] Workqueue: events kmemleak_do_cleanup
-[24.745717] Call Trace:
-[24.745736] dump_stack+0x7c/0xc0
-[24.745755] print_address_description.constprop.4+0x1f/0x300
-[24.751562] Key type .fscrypt registered
-[24.754370] __kasan_report.cold.8+0x76/0xb2
-[24.754388] ? __kmemleak_do_cleanup+0x166/0x180
-[24.754407] kasan_report+0xe/0x20
-[24.778543] __kmemleak_do_cleanup+0x166/0x180
-[24.780795] process_one_work+0x919/0x17d0
-[24.782929] ? pwq_dec_nr_in_flight+0x320/0x320
-[24.785092] worker_thread+0x87/0xb40
-[24.786948] ? __kthread_parkme+0xc3/0x190
-[24.789217] ? process_one_work+0x17d0/0x17d0
-[24.791414] kthread+0x333/0x3f0
-[24.793031] ? kthread_create_worker_on_cpu+0xc0/0xc0
-[24.795473] ret_from_fork+0x3a/0x50
-[24.797303]
-[24.798091] The buggy address belongs to the variable:
-[24.800634] mem_pool_free_count+0x10/0x40
-[24.802656]
-[24.803434] Memory state around the buggy address:
-[24.805793] ffffffff88746b80: 04 fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
-[24.809177] ffffffff88746c00: 00 fa fa fa fa fa fa fa 00 00 fa fa fa fa fa fa
-[24.812407] >ffffffff88746c80: 04 fa fa fa fa fa fa fa 00 00 fa fa fa fa fa fa
-[24.815638] ^
-[24.817372] ffffffff88746d00: 00 00 fa fa fa fa fa fa 00 00 00 00 00 00 00 00
-[24.820740] ffffffff88746d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-[24.824021] ==================================================================
-
-Fixes: c5665868183f ("mm: kmemleak: use the memory pool for early allocations")
-Signed-off-by: Murphy Zhou <jencce.kernel@gmail.com>
----
- mm/kmemleak.c | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/mm/kmemleak.c b/mm/kmemleak.c
-index e362dc3d2028..0c3dfb8eef67 100644
---- a/mm/kmemleak.c
-+++ b/mm/kmemleak.c
-@@ -1958,6 +1958,11 @@ void __init kmemleak_init(void)
- */
- static int __init kmemleak_late_init(void)
- {
-+ if (!kmemleak_skip_disable) {
-+ kmemleak_disable();
-+ return 0;
-+ }
-+
- kmemleak_initialized = 1;
-
- debugfs_create_file("kmemleak", 0644, NULL, NULL, &kmemleak_fops);
---
-2.28.0
-