Linux v5.4-rc1
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Jeremy Cline
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c2ad199666
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71
0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch
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71
0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch
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@ -0,0 +1,71 @@
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From 14d329da03ea1145efce866b127b10ea6390b5e1 Mon Sep 17 00:00:00 2001
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From: Murphy Zhou <jencce.kernel@gmail.com>
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Date: Sun, 29 Sep 2019 17:56:59 +0800
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Subject: [PATCH] mm/kmemleak: skip late_init if not skip disable
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Now if DEFAULT_OFF set to y, kmemleak_init will start the cleanup_work
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workqueue. Then late_init call will set kmemleak_initialized to 1, the
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cleaup workqueue will try to do cleanup, triggering:
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[24.738773] ==================================================================
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[24.742784] BUG: KASAN: global-out-of-bounds in __kmemleak_do_cleanup+0x166/0x180
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[24.744144] Key type ._fscrypt registered
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[24.745680] Read of size 8 at addr ffffffff88746c90 by task kworker/3:1/171
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[24.745687]
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[24.745697] CPU: 3 PID: 171 Comm: kworker/3:1 Not tainted 5.3.0-v5.3-12475-gcbafe18 #1
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[24.745701] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
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[24.745710] Workqueue: events kmemleak_do_cleanup
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[24.745717] Call Trace:
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[24.745736] dump_stack+0x7c/0xc0
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[24.745755] print_address_description.constprop.4+0x1f/0x300
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[24.751562] Key type .fscrypt registered
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[24.754370] __kasan_report.cold.8+0x76/0xb2
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[24.754388] ? __kmemleak_do_cleanup+0x166/0x180
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[24.754407] kasan_report+0xe/0x20
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[24.778543] __kmemleak_do_cleanup+0x166/0x180
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[24.780795] process_one_work+0x919/0x17d0
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[24.782929] ? pwq_dec_nr_in_flight+0x320/0x320
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[24.785092] worker_thread+0x87/0xb40
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[24.786948] ? __kthread_parkme+0xc3/0x190
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[24.789217] ? process_one_work+0x17d0/0x17d0
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[24.791414] kthread+0x333/0x3f0
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[24.793031] ? kthread_create_worker_on_cpu+0xc0/0xc0
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[24.795473] ret_from_fork+0x3a/0x50
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[24.797303]
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[24.798091] The buggy address belongs to the variable:
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[24.800634] mem_pool_free_count+0x10/0x40
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[24.802656]
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[24.803434] Memory state around the buggy address:
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[24.805793] ffffffff88746b80: 04 fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
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[24.809177] ffffffff88746c00: 00 fa fa fa fa fa fa fa 00 00 fa fa fa fa fa fa
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[24.812407] >ffffffff88746c80: 04 fa fa fa fa fa fa fa 00 00 fa fa fa fa fa fa
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[24.815638] ^
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[24.817372] ffffffff88746d00: 00 00 fa fa fa fa fa fa 00 00 00 00 00 00 00 00
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[24.820740] ffffffff88746d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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[24.824021] ==================================================================
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Fixes: c5665868183f ("mm: kmemleak: use the memory pool for early allocations")
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Signed-off-by: Murphy Zhou <jencce.kernel@gmail.com>
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---
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mm/kmemleak.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/mm/kmemleak.c b/mm/kmemleak.c
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index 03a8d84badad..b9baf617fe35 100644
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--- a/mm/kmemleak.c
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+++ b/mm/kmemleak.c
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@@ -1946,6 +1946,11 @@ void __init kmemleak_init(void)
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*/
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static int __init kmemleak_late_init(void)
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{
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+ if (!kmemleak_skip_disable) {
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+ kmemleak_disable();
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+ return 0;
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+ }
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+
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kmemleak_initialized = 1;
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debugfs_create_file("kmemleak", 0644, NULL, NULL, &kmemleak_fops);
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--
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2.21.0
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11
kernel.spec
11
kernel.spec
@ -69,9 +69,9 @@ Summary: The Linux kernel
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# The next upstream release sublevel (base_sublevel+1)
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%define upstream_sublevel %(echo $((%{base_sublevel} + 1)))
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# The rc snapshot level
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%global rcrev 0
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%global rcrev 1
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# The git snapshot level
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%define gitrev 9
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%define gitrev 0
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# Set rpm version accordingly
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%define rpmversion 5.%{upstream_sublevel}.0
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%endif
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@ -547,6 +547,10 @@ Patch502: 0001-Drop-that-for-now.patch
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# Submitted upstream at https://lkml.org/lkml/2019/4/23/89
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Patch503: KEYS-Make-use-of-platform-keyring-for-module-signature.patch
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# Fixes a boot hang on debug kernels
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# https://bugzilla.redhat.com/show_bug.cgi?id=1756655
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Patch504: 0001-mm-kmemleak-skip-late_init-if-not-skip-disable.patch
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# END OF PATCH DEFINITIONS
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%endif
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@ -1748,6 +1752,9 @@ fi
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#
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#
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%changelog
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* Wed Oct 02 2019 Jeremy Cline <jcline@redhat.com> - 5.4.0-0.rc1.git0.1
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- Linux v5.4-rc1
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* Wed Oct 02 2019 Jeremy Cline <jcline@redhat.com>
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- Disable debugging options.
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2
sources
2
sources
@ -1,2 +1,2 @@
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SHA512 (linux-5.3.tar.xz) = 6b5edef47c319a3fa7f6c20a3e0903a5acd89ec75e32dc5f99adcb60c9fe118ea312722d9c3d27e2e3900afa2455afb86e83a8b6bb131009bc79ddbe6fb0595d
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SHA512 (patch-5.3-git9.xz) = 47761a6fb683ba11c648df4fe542f13b90f1bc3bdeba236ea0be4df12c7ce7373f5841e194641023370bf52d94ad8660dc85bf51d44942c7c2508b996e365c88
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SHA512 (patch-5.4-rc1.xz) = 78185a0f56244148d3d5f904f08d2aebbaa325bb58323f5922b2a1d53dea3eef3f4ae10de8d801970a457647c3d34f89c27b54192661e54566d5eb6e715eb46c
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