Linux v4.5.4
This commit is contained in:
Justin M. Forbes
parent
ed0df02784
commit
8cbd263769
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@ -1,37 +0,0 @@
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From 88fd0f33c3cc5aa6a26f56902241941ac717e9f8 Mon Sep 17 00:00:00 2001
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From: Peter Robinson <pbrobinson@gmail.com>
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Date: Wed, 27 Apr 2016 13:44:05 +0100
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Subject: [PATCH] gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading
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---
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drivers/gpu/ipu-v3/ipu-common.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
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index e00db3f..abb98c7 100644
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--- a/drivers/gpu/ipu-v3/ipu-common.c
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+++ b/drivers/gpu/ipu-v3/ipu-common.c
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@@ -1068,7 +1068,6 @@ static int ipu_add_client_devices(struct ipu_soc *ipu, unsigned long ipu_base)
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goto err_register;
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}
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- pdev->dev.of_node = of_node;
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pdev->dev.parent = dev;
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ret = platform_device_add_data(pdev, ®->pdata,
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@@ -1079,6 +1078,12 @@ static int ipu_add_client_devices(struct ipu_soc *ipu, unsigned long ipu_base)
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platform_device_put(pdev);
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goto err_register;
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}
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+
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+ /*
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+ * Set of_node only after calling platform_device_add. Otherwise
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+ * the platform:imx-ipuv3-crtc modalias won't be used.
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+ */
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+ pdev->dev.of_node = of_node;
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}
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return 0;
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--
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2.7.4
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14
kernel.spec
14
kernel.spec
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@ -54,7 +54,7 @@ Summary: The Linux kernel
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%if 0%{?released_kernel}
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# Do we have a -stable update to apply?
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%define stable_update 3
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%define stable_update 4
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# Set rpm version accordingly
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%if 0%{?stable_update}
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%define stablerev %{stable_update}
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@ -506,9 +506,6 @@ Patch422: geekbox-v4-device-tree-support.patch
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# http://www.spinics.net/lists/arm-kernel/msg483898.html
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Patch423: Initial-AllWinner-A64-and-PINE64-support.patch
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# rhbz 1321330 http://www.spinics.net/lists/dri-devel/msg105829.html
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Patch425: 0001-gpu-ipu-v3-Fix-imx-ipuv3-crtc-module-autoloading.patch
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# http://www.spinics.net/lists/linux-tegra/msg26029.html
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Patch426: usb-phy-tegra-Add-38.4MHz-clock-table-entry.patch
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@ -632,9 +629,6 @@ Patch665: netfilter-x_tables-deal-with-bogus-nextoffset-values.patch
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# CVE-2016-3672 rhbz 1324749 1324750
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Patch689: x86-mm-32-Enable-full-randomization-on-i386-and-X86_.patch
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#rhbz 1309980
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Patch698: 0001-ACPI-processor-Request-native-thermal-interrupt-hand.patch
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#rhbz 1309487
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Patch701: antenna_select.patch
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@ -657,9 +651,6 @@ Patch706: USB-usbfs-fix-potential-infoleak-in-devio.patch
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Patch707: net-fix-infoleak-in-llc.patch
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Patch708: net-fix-infoleak-in-rtnetlink.patch
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#CVE-2016-xxxx rhbz 1333712 1333713
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Patch709: propogate_mnt-Handle-the-first-propogated-copy-being.patch
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#CVE-2016-4557 CVE-2016-4558 rhbz 1334307 1334303 1334311
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Patch711: bpf-fix-double-fdput-in-replace_map_fd_with_map_ptr.patch
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Patch712: bpf-fix-refcnt-overflow.patch
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@ -2193,6 +2184,9 @@ fi
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#
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#
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%changelog
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* Wed May 11 2016 Justin M. Forbes <jforbes@fedoraproject.org> - 4.5.4-300
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- Linux v4.5.4
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* Tue May 10 2016 Josh Boyer <jwboyer@fedoraproject.org>
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- Enable XEN SCSI front and backend (rhbz 1334512)
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- CVE-2016-4569 info leak in sound module (rhbz 1334643 1334645)
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@ -1,131 +0,0 @@
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From ba23dd7749dfeab511f2eab29eef21dde31ad480 Mon Sep 17 00:00:00 2001
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From: "Eric W. Biederman" <ebiederm@xmission.com>
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Date: Thu, 5 May 2016 09:29:29 -0500
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Subject: [PATCH] propogate_mnt: Handle the first propogated copy being a slave
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When the first propgated copy was a slave the following oops would result:
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> BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
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> IP: [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0
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> PGD bacd4067 PUD bac66067 PMD 0
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> Oops: 0000 [#1] SMP
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> Modules linked in:
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> CPU: 1 PID: 824 Comm: mount Not tainted 4.6.0-rc5userns+ #1523
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> Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
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> task: ffff8800bb0a8000 ti: ffff8800bac3c000 task.ti: ffff8800bac3c000
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> RIP: 0010:[<ffffffff811fba4e>] [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0
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> RSP: 0018:ffff8800bac3fd38 EFLAGS: 00010283
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> RAX: 0000000000000000 RBX: ffff8800bb77ec00 RCX: 0000000000000010
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> RDX: 0000000000000000 RSI: ffff8800bb58c000 RDI: ffff8800bb58c480
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> RBP: ffff8800bac3fd48 R08: 0000000000000001 R09: 0000000000000000
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> R10: 0000000000001ca1 R11: 0000000000001c9d R12: 0000000000000000
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> R13: ffff8800ba713800 R14: ffff8800bac3fda0 R15: ffff8800bb77ec00
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> FS: 00007f3c0cd9b7e0(0000) GS:ffff8800bfb00000(0000) knlGS:0000000000000000
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> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
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> CR2: 0000000000000010 CR3: 00000000bb79d000 CR4: 00000000000006e0
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> Stack:
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> ffff8800bb77ec00 0000000000000000 ffff8800bac3fd88 ffffffff811fbf85
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> ffff8800bac3fd98 ffff8800bb77f080 ffff8800ba713800 ffff8800bb262b40
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> 0000000000000000 0000000000000000 ffff8800bac3fdd8 ffffffff811f1da0
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> Call Trace:
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> [<ffffffff811fbf85>] propagate_mnt+0x105/0x140
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> [<ffffffff811f1da0>] attach_recursive_mnt+0x120/0x1e0
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> [<ffffffff811f1ec3>] graft_tree+0x63/0x70
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> [<ffffffff811f1f6b>] do_add_mount+0x9b/0x100
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> [<ffffffff811f2c1a>] do_mount+0x2aa/0xdf0
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> [<ffffffff8117efbe>] ? strndup_user+0x4e/0x70
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> [<ffffffff811f3a45>] SyS_mount+0x75/0xc0
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> [<ffffffff8100242b>] do_syscall_64+0x4b/0xa0
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> [<ffffffff81988f3c>] entry_SYSCALL64_slow_path+0x25/0x25
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> Code: 00 00 75 ec 48 89 0d 02 22 22 01 8b 89 10 01 00 00 48 89 05 fd 21 22 01 39 8e 10 01 00 00 0f 84 e0 00 00 00 48 8b 80 d8 00 00 00 <48> 8b 50 10 48 89 05 df 21 22 01 48 89 15 d0 21 22 01 8b 53 30
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> RIP [<ffffffff811fba4e>] propagate_one+0xbe/0x1c0
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> RSP <ffff8800bac3fd38>
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> CR2: 0000000000000010
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> ---[ end trace 2725ecd95164f217 ]---
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This oops happens with the namespace_sem held and can be triggered by
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non-root users. An all around not pleasant experience.
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To avoid this scenario when finding the appropriate source mount to
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copy stop the walk up the mnt_master chain when the first source mount
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is encountered.
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Further rewrite the walk up the last_source mnt_master chain so that
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it is clear what is going on.
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The reason why the first source mount is special is that it it's
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mnt_parent is not a mount in the dest_mnt propagation tree, and as
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such termination conditions based up on the dest_mnt mount propgation
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tree do not make sense.
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To avoid other kinds of confusion last_dest is not changed when
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computing last_source. last_dest is only used once in propagate_one
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and that is above the point of the code being modified, so changing
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the global variable is meaningless and confusing.
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Cc: stable@vger.kernel.org
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fixes: f2ebb3a921c1ca1e2ddd9242e95a1989a50c4c68 ("smarter propagate_mnt()")
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Reported-by: Tycho Andersen <tycho.andersen@canonical.com>
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Reviewed-by: Seth Forshee <seth.forshee@canonical.com>
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Tested-by: Seth Forshee <seth.forshee@canonical.com>
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Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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---
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fs/pnode.c | 25 ++++++++++++++-----------
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1 file changed, 14 insertions(+), 11 deletions(-)
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diff --git a/fs/pnode.c b/fs/pnode.c
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index c524fdddc7fb..99899705b105 100644
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--- a/fs/pnode.c
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+++ b/fs/pnode.c
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@@ -198,7 +198,7 @@ static struct mount *next_group(struct mount *m, struct mount *origin)
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/* all accesses are serialized by namespace_sem */
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static struct user_namespace *user_ns;
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-static struct mount *last_dest, *last_source, *dest_master;
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+static struct mount *last_dest, *first_source, *last_source, *dest_master;
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static struct mountpoint *mp;
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static struct hlist_head *list;
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@@ -221,20 +221,22 @@ static int propagate_one(struct mount *m)
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type = CL_MAKE_SHARED;
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} else {
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struct mount *n, *p;
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+ bool done;
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for (n = m; ; n = p) {
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p = n->mnt_master;
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- if (p == dest_master || IS_MNT_MARKED(p)) {
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- while (last_dest->mnt_master != p) {
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- last_source = last_source->mnt_master;
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- last_dest = last_source->mnt_parent;
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- }
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- if (!peers(n, last_dest)) {
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- last_source = last_source->mnt_master;
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- last_dest = last_source->mnt_parent;
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- }
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+ if (p == dest_master || IS_MNT_MARKED(p))
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break;
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- }
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}
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+ do {
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+ struct mount *parent = last_source->mnt_parent;
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+ if (last_source == first_source)
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+ break;
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+ done = parent->mnt_master == p;
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+ if (done && peers(n, parent))
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+ break;
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+ last_source = last_source->mnt_master;
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+ } while (!done);
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+
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type = CL_SLAVE;
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/* beginning of peer group among the slaves? */
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if (IS_MNT_SHARED(m))
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@@ -286,6 +288,7 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
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*/
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user_ns = current->nsproxy->mnt_ns->user_ns;
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last_dest = dest_mnt;
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+ first_source = source_mnt;
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last_source = source_mnt;
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mp = dest_mp;
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list = tree_list;
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--
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2.5.5
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