Linux v4.3-rc6-108-gce1fad2
- Reenable debugging options.
This commit is contained in:
Laura Abbott
parent
4c186b32b1
commit
cdab736f84
@ -1,78 +0,0 @@
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From e2293f0c696f863c3175c199b96de3711019352f Mon Sep 17 00:00:00 2001
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From: David Howells <dhowells@redhat.com>
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Date: Thu, 15 Oct 2015 17:21:37 +0100
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Subject: [PATCH 1/2] KEYS: Fix crash when attempt to garbage collect an
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uninstantiated keyring
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The following sequence of commands:
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i=`keyctl add user a a @s`
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keyctl request2 keyring foo bar @t
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keyctl unlink $i @s
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tries to invoke an upcall to instantiate a keyring if one doesn't already
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exist by that name within the user's keyring set. However, if the upcall
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fails, the code sets keyring->type_data.reject_error to -ENOKEY or some
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other error code. When the key is garbage collected, the key destroy
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function is called unconditionally and keyring_destroy() uses list_empty()
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on keyring->type_data.link - which is in a union with reject_error.
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Subsequently, the kernel tries to unlink the keyring from the keyring names
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list - which oopses like this:
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BUG: unable to handle kernel paging request at 00000000ffffff8a
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IP: [<ffffffff8126e051>] keyring_destroy+0x3d/0x88
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...
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Workqueue: events key_garbage_collector
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...
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RIP: 0010:[<ffffffff8126e051>] keyring_destroy+0x3d/0x88
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RSP: 0018:ffff88003e2f3d30 EFLAGS: 00010203
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RAX: 00000000ffffff82 RBX: ffff88003bf1a900 RCX: 0000000000000000
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RDX: 0000000000000000 RSI: 000000003bfc6901 RDI: ffffffff81a73a40
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RBP: ffff88003e2f3d38 R08: 0000000000000152 R09: 0000000000000000
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R10: ffff88003e2f3c18 R11: 000000000000865b R12: ffff88003bf1a900
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R13: 0000000000000000 R14: ffff88003bf1a908 R15: ffff88003e2f4000
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...
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CR2: 00000000ffffff8a CR3: 000000003e3ec000 CR4: 00000000000006f0
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...
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Call Trace:
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[<ffffffff8126c756>] key_gc_unused_keys.constprop.1+0x5d/0x10f
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[<ffffffff8126ca71>] key_garbage_collector+0x1fa/0x351
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[<ffffffff8105ec9b>] process_one_work+0x28e/0x547
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[<ffffffff8105fd17>] worker_thread+0x26e/0x361
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[<ffffffff8105faa9>] ? rescuer_thread+0x2a8/0x2a8
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[<ffffffff810648ad>] kthread+0xf3/0xfb
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[<ffffffff810647ba>] ? kthread_create_on_node+0x1c2/0x1c2
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[<ffffffff815f2ccf>] ret_from_fork+0x3f/0x70
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[<ffffffff810647ba>] ? kthread_create_on_node+0x1c2/0x1c2
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Note the value in RAX. This is a 32-bit representation of -ENOKEY.
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The solution is to only call ->destroy() if the key was successfully
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instantiated.
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Reported-by: Dmitry Vyukov <dvyukov@google.com>
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Signed-off-by: David Howells <dhowells@redhat.com>
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---
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security/keys/gc.c | 6 ++++--
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1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/security/keys/gc.c b/security/keys/gc.c
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index 39eac1fd5706..addf060399e0 100644
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--- a/security/keys/gc.c
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+++ b/security/keys/gc.c
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@@ -134,8 +134,10 @@ static noinline void key_gc_unused_keys(struct list_head *keys)
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kdebug("- %u", key->serial);
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key_check(key);
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- /* Throw away the key data */
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- if (key->type->destroy)
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+ /* Throw away the key data if the key is instantiated */
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+ if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&
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+ !test_bit(KEY_FLAG_NEGATIVE, &key->flags) &&
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+ key->type->destroy)
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key->type->destroy(key);
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security_key_free(key);
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--
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2.4.3
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@ -1,34 +0,0 @@
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From 637114624bcf468a32af842a4356aab607457e62 Mon Sep 17 00:00:00 2001
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From: David Howells <dhowells@redhat.com>
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Date: Mon, 19 Oct 2015 11:33:38 +0100
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Subject: [PATCH 2/2] KEYS: Don't permit request_key() to construct a new
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keyring
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If request_key() is used to find a keyring, only do the search part - don't
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do the construction part if the keyring was not found by the search. We
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don't really want keyrings in the negative instantiated state since the
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rejected/negative instantiation error value in the payload is unioned with
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keyring metadata.
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Signed-off-by: David Howells <dhowells@redhat.com>
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---
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security/keys/request_key.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/security/keys/request_key.c b/security/keys/request_key.c
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index 486ef6fa393b..0d6253124278 100644
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--- a/security/keys/request_key.c
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+++ b/security/keys/request_key.c
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@@ -440,6 +440,9 @@ static struct key *construct_key_and_link(struct keyring_search_context *ctx,
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kenter("");
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+ if (ctx->index_key.type == &key_type_keyring)
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+ return ERR_PTR(-EPERM);
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+
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user = key_user_lookup(current_fsuid());
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if (!user)
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return ERR_PTR(-ENOMEM);
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--
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2.4.3
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@ -1783,13 +1783,13 @@ CONFIG_B43_PCMCIA=y
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CONFIG_B43_SDIO=y
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CONFIG_B43_BCMA=y
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CONFIG_B43_BCMA_PIO=y
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# CONFIG_B43_DEBUG is not set
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CONFIG_B43_DEBUG=y
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CONFIG_B43_PHY_LP=y
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CONFIG_B43_PHY_N=y
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CONFIG_B43_PHY_HT=y
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CONFIG_B43_PHY_G=y
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CONFIG_B43LEGACY=m
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# CONFIG_B43LEGACY_DEBUG is not set
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CONFIG_B43LEGACY_DEBUG=y
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CONFIG_B43LEGACY_DMA=y
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CONFIG_B43LEGACY_PIO=y
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CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
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@ -4991,7 +4991,7 @@ CONFIG_PM_DEBUG=y
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# CONFIG_DPM_WATCHDOG is not set # revisit this in debug
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CONFIG_PM_TRACE=y
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CONFIG_PM_TRACE_RTC=y
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# CONFIG_PM_TEST_SUSPEND is not set
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CONFIG_PM_TEST_SUSPEND=y
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# CONFIG_PM_OPP is not set
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# CONFIG_PM_AUTOSLEEP is not set
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# CONFIG_PM_WAKELOCKS is not set
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112
config-nodebug
112
config-nodebug
@ -2,100 +2,100 @@ CONFIG_SND_VERBOSE_PRINTK=y
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CONFIG_SND_DEBUG=y
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CONFIG_SND_PCM_XRUN_DEBUG=y
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# CONFIG_DEBUG_ATOMIC_SLEEP is not set
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CONFIG_DEBUG_ATOMIC_SLEEP=y
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# CONFIG_DEBUG_MUTEXES is not set
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# CONFIG_DEBUG_RT_MUTEXES is not set
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# CONFIG_DEBUG_LOCK_ALLOC is not set
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# CONFIG_LOCK_TORTURE_TEST is not set
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# CONFIG_PROVE_LOCKING is not set
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# CONFIG_DEBUG_SPINLOCK is not set
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# CONFIG_PROVE_RCU is not set
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CONFIG_DEBUG_MUTEXES=y
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CONFIG_DEBUG_RT_MUTEXES=y
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CONFIG_DEBUG_LOCK_ALLOC=y
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CONFIG_LOCK_TORTURE_TEST=m
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CONFIG_PROVE_LOCKING=y
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CONFIG_DEBUG_SPINLOCK=y
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CONFIG_PROVE_RCU=y
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# CONFIG_PROVE_RCU_REPEATEDLY is not set
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# CONFIG_DEBUG_PER_CPU_MAPS is not set
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CONFIG_DEBUG_PER_CPU_MAPS=y
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CONFIG_CPUMASK_OFFSTACK=y
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# CONFIG_CPU_NOTIFIER_ERROR_INJECT is not set
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CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
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# CONFIG_FAULT_INJECTION is not set
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# CONFIG_FAILSLAB is not set
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# CONFIG_FAIL_PAGE_ALLOC is not set
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# CONFIG_FAIL_MAKE_REQUEST is not set
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# CONFIG_FAULT_INJECTION_DEBUG_FS is not set
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# CONFIG_FAULT_INJECTION_STACKTRACE_FILTER is not set
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# CONFIG_FAIL_IO_TIMEOUT is not set
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# CONFIG_FAIL_MMC_REQUEST is not set
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CONFIG_FAULT_INJECTION=y
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CONFIG_FAILSLAB=y
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CONFIG_FAIL_PAGE_ALLOC=y
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CONFIG_FAIL_MAKE_REQUEST=y
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CONFIG_FAULT_INJECTION_DEBUG_FS=y
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CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
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CONFIG_FAIL_IO_TIMEOUT=y
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CONFIG_FAIL_MMC_REQUEST=y
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# CONFIG_LOCK_STAT is not set
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CONFIG_LOCK_STAT=y
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# CONFIG_DEBUG_STACK_USAGE is not set
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CONFIG_DEBUG_STACK_USAGE=y
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# CONFIG_ACPI_DEBUG is not set
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CONFIG_ACPI_DEBUG=y
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# CONFIG_DEBUG_SG is not set
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# CONFIG_DEBUG_PI_LIST is not set
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CONFIG_DEBUG_SG=y
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CONFIG_DEBUG_PI_LIST=y
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# CONFIG_PAGE_EXTENSION is not set
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# CONFIG_PAGE_OWNER is not set
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# CONFIG_DEBUG_PAGEALLOC is not set
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# CONFIG_DEBUG_OBJECTS is not set
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CONFIG_DEBUG_OBJECTS=y
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# CONFIG_DEBUG_OBJECTS_SELFTEST is not set
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# CONFIG_DEBUG_OBJECTS_FREE is not set
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# CONFIG_DEBUG_OBJECTS_TIMERS is not set
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# CONFIG_DEBUG_OBJECTS_RCU_HEAD is not set
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CONFIG_DEBUG_OBJECTS_FREE=y
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CONFIG_DEBUG_OBJECTS_TIMERS=y
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CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
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CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
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CONFIG_X86_PTDUMP=y
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# CONFIG_ARM64_PTDUMP is not set
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# CONFIG_EFI_PGT_DUMP is not set
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CONFIG_ARM64_PTDUMP=y
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CONFIG_EFI_PGT_DUMP=y
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# CONFIG_CAN_DEBUG_DEVICES is not set
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CONFIG_CAN_DEBUG_DEVICES=y
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# CONFIG_MODULE_FORCE_UNLOAD is not set
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CONFIG_MODULE_FORCE_UNLOAD=y
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# CONFIG_DEBUG_NOTIFIERS is not set
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CONFIG_DEBUG_NOTIFIERS=y
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# CONFIG_DMA_API_DEBUG is not set
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CONFIG_DMA_API_DEBUG=y
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# CONFIG_MMIOTRACE is not set
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CONFIG_MMIOTRACE=y
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# CONFIG_DEBUG_CREDENTIALS is not set
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CONFIG_DEBUG_CREDENTIALS=y
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# off in both production debug and nodebug builds,
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# on in rawhide nodebug builds
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# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
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CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
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# CONFIG_EXT4_DEBUG is not set
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CONFIG_EXT4_DEBUG=y
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# CONFIG_XFS_WARN is not set
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# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
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CONFIG_DEBUG_PERF_USE_VMALLOC=y
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# CONFIG_JBD2_DEBUG is not set
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CONFIG_JBD2_DEBUG=y
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# CONFIG_NFSD_FAULT_INJECTION is not set
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CONFIG_NFSD_FAULT_INJECTION=y
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# CONFIG_DEBUG_BLK_CGROUP is not set
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CONFIG_DEBUG_BLK_CGROUP=y
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# CONFIG_DRBD_FAULT_INJECTION is not set
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CONFIG_DRBD_FAULT_INJECTION=y
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# CONFIG_ATH_DEBUG is not set
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# CONFIG_CARL9170_DEBUGFS is not set
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# CONFIG_IWLWIFI_DEVICE_TRACING is not set
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CONFIG_ATH_DEBUG=y
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CONFIG_CARL9170_DEBUGFS=y
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CONFIG_IWLWIFI_DEVICE_TRACING=y
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# CONFIG_RTLWIFI_DEBUG is not set
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# CONFIG_DEBUG_OBJECTS_WORK is not set
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CONFIG_DEBUG_OBJECTS_WORK=y
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# CONFIG_DMADEVICES_DEBUG is not set
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# CONFIG_DMADEVICES_VDEBUG is not set
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CONFIG_DMADEVICES_DEBUG=y
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CONFIG_DMADEVICES_VDEBUG=y
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CONFIG_PM_ADVANCED_DEBUG=y
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# CONFIG_CEPH_LIB_PRETTYDEBUG is not set
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# CONFIG_QUOTA_DEBUG is not set
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CONFIG_CEPH_LIB_PRETTYDEBUG=y
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CONFIG_QUOTA_DEBUG=y
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CONFIG_KGDB_KDB=y
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@ -103,18 +103,18 @@ CONFIG_KDB_DEFAULT_ENABLE=0x0
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CONFIG_KDB_KEYBOARD=y
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CONFIG_KDB_CONTINUE_CATASTROPHIC=0
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# CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER is not set
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CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y
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# CONFIG_PERCPU_TEST is not set
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# CONFIG_TEST_LIST_SORT is not set
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CONFIG_TEST_LIST_SORT=y
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# CONFIG_TEST_STRING_HELPERS is not set
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# CONFIG_DETECT_HUNG_TASK is not set
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CONFIG_DETECT_HUNG_TASK=y
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CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
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# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
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# CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK is not set
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CONFIG_X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK=y
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# CONFIG_DEBUG_KMEMLEAK is not set
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CONFIG_DEBUG_KMEMLEAK=y
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CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=1024
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# CONFIG_DEBUG_KMEMLEAK_TEST is not set
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CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y
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@ -125,4 +125,4 @@ CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y
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# CONFIG_SPI_DEBUG is not set
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# CONFIG_X86_DEBUG_STATIC_CPU_HAS is not set
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CONFIG_X86_DEBUG_STATIC_CPU_HAS=y
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@ -361,7 +361,7 @@ CONFIG_SP5100_TCO=m
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# CONFIG_MEMTEST is not set
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# CONFIG_DEBUG_TLBFLUSH is not set
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# CONFIG_MAXSMP is not set
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CONFIG_MAXSMP=y
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CONFIG_HP_ILO=m
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2
gitrev
2
gitrev
@ -1 +1 @@
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69984b64440729bf6b08d1ddc1b3ee8282a2c846
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ce1fad2740c648a4340f6f6c391a8a83769d2e8c
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12
kernel.spec
12
kernel.spec
@ -67,7 +67,7 @@ Summary: The Linux kernel
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# The rc snapshot level
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%define rcrev 6
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# The git snapshot level
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%define gitrev 0
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%define gitrev 1
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# Set rpm version accordingly
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%define rpmversion 4.%{upstream_sublevel}.0
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%endif
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@ -122,7 +122,7 @@ Summary: The Linux kernel
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# Set debugbuildsenabled to 1 for production (build separate debug kernels)
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# and 0 for rawhide (all kernels are debug kernels).
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# See also 'make debug' and 'make release'.
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%define debugbuildsenabled 1
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%define debugbuildsenabled 0
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# Want to build a vanilla kernel build without any non-upstream patches?
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%define with_vanilla %{?_with_vanilla: 1} %{?!_with_vanilla: 0}
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@ -587,10 +587,6 @@ Patch508: kexec-uefi-copy-secure_boot-flag-in-boot-params.patch
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#rhbz 1239050
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Patch509: ideapad-laptop-Add-Lenovo-Yoga-3-14-to-no_hw_rfkill-.patch
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#rhbz 1272172
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Patch510: 0001-KEYS-Fix-crash-when-attempt-to-garbage-collect-an-un.patch
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Patch511: 0002-KEYS-Don-t-permit-request_key-to-construct-a-new-key.patch
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Patch904: kdbus.patch
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# END OF PATCH DEFINITIONS
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@ -2036,6 +2032,10 @@ fi
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#
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#
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%changelog
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* Tue Oct 20 2015 Laura Abbott <labbott@redhat.com> - 4.3.0-0.rc6.git1.1
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- Linux v4.3-rc6-108-gce1fad2
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- Reenable debugging options.
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* Mon Oct 19 2015 Laura Abbott <labbott@redhat.com> - 4.3.0-0.rc6.git0.1
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- Linux v4.3-rc6
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- Disable debugging options.
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