Backport upstream patch:
Commit 65cab850f0ee ("net: Allow class-e address assignment via ifconfig
ioctl") modified the IN_BADCLASS macro a bit, but unfortunatly one too
many '(' characters were added to the line, making any code that used
it, not build properly.
Also, the macro now compares an unsigned with a signed value, which
isn't ok, so fix that up by making both types match properly.
Reported-by: Christopher Ferris <cferris@google.com>
Fixes: 65cab850f0ee ("net: Allow class-e address assignment via ifconfig ioctl")
Cc: Dave Taht <dave.taht@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
upstream commit 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
reimplemented cns3xxx_pci_read_config() using pci_generic_config_read32(),
which preserved the property of only doing 32-bit reads.
It also replaced cns3xxx_pci_write_config() with pci_generic_config_write(),
so it changed writes from always being 32 bits to being the actual size,
which works just fine.
Due to:
- The documentation does not mention that only 32 bit access is allowed.
- Writes are already executed using the actual size
- Extensive testing shows that 8b, 16b and 32b reads work as intended
It makes perfectly sense to also swap 32 bit reading in favor of actual size.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Backport https://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git/commit/?id=adcc81f148d733b7e8e641300c5590a2cdc13bf3
"Mapping the delay slot emulation page as both writeable & executable
presents a security risk, in that if an exploit can write to & jump into
the page then it can be used as an easy way to execute arbitrary code.
Prevent this by mapping the page read-only for userland, and using
access_process_vm() with the FOLL_FORCE flag to write to it from
mips_dsemul().
This will likely be less efficient due to copy_to_user_page() performing
cache maintenance on a whole page, rather than a single line as in the
previous use of flush_cache_sigtramp(). However this delay slot
emulation code ought not to be running in any performance critical paths
anyway so this isn't really a problem, and we can probably do better in
copy_to_user_page() anyway in future.
A major advantage of this approach is that the fix is small & simple to
backport to stable kernels.
Reported-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 432c6bacbd0c ("MIPS: Use per-mm page to execute branch delay slot instructions")"
Without patch:
cat /proc/self/maps
00400000-0047a000 r-xp 00000000 1f:03 1823 /bin/busybox
00489000-0048a000 r-xp 00079000 1f:03 1823 /bin/busybox
0048a000-0048b000 rwxp 0007a000 1f:03 1823 /bin/busybox
77ec8000-77eed000 r-xp 00000000 1f:03 2296 /lib/libgcc_s.so.1
77eed000-77eee000 rwxp 00015000 1f:03 2296 /lib/libgcc_s.so.1
77eee000-77f81000 r-xp 00000000 1f:03 2470 /lib/libc.so
77f90000-77f92000 rwxp 00092000 1f:03 2470 /lib/libc.so
77f92000-77f94000 rwxp 00000000 00:00 0
7f946000-7f967000 rw-p 00000000 00:00 0 [stack]
7fefb000-7fefc000 rwxp 00000000 00:00 0
7ffac000-7ffad000 r--p 00000000 00:00 0 [vvar]
7ffad000-7ffae000 r-xp 00000000 00:00 0 [vdso]
Patch applied:
cat /proc/self/maps
00400000-0047a000 r-xp 00000000 1f:03 1825 /bin/busybox
00489000-0048a000 r-xp 00079000 1f:03 1825 /bin/busybox
0048a000-0048b000 rwxp 0007a000 1f:03 1825 /bin/busybox
77ed0000-77ef5000 r-xp 00000000 1f:03 2298 /lib/libgcc_s.so.1
77ef5000-77ef6000 rwxp 00015000 1f:03 2298 /lib/libgcc_s.so.1
77ef6000-77f89000 r-xp 00000000 1f:03 2474 /lib/libc.so
77f98000-77f9a000 rwxp 00092000 1f:03 2474 /lib/libc.so
77f9a000-77f9c000 rwxp 00000000 00:00 0
7fbed000-7fc0e000 rw-p 00000000 00:00 0 [stack]
7fefb000-7fefc000 r-xp 00000000 00:00 0
7fff6000-7fff7000 r--p 00000000 00:00 0 [vvar]
7fff7000-7fff8000 r-xp 00000000 00:00 0 [vdso]
Note lack of write permission to 7fefb000-7fefc000
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Originally, cns3xxx used it's own functions for mapping, reading and writing registers.
Upstream commit 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
removed the internal PCI config write function in favor of the generic one:
cns3xxx_pci_write_config() --> pci_generic_config_write()
cns3xxx_pci_write_config() expected aligned addresses, being produced by cns3xxx_pci_map_bus()
while the generic one pci_generic_config_write() actually expects the real address
as both the function and hardware are capable of byte-aligned writes.
This currently leads to pci_generic_config_write() writing
to the wrong registers on some ocasions.
First issue seen due to this:
- driver ath9k gets loaded
- The driver wants to write value 0xA8 to register PCI_LATENCY_TIMER, located at 0x0D
- cns3xxx_pci_map_bus() aligns the address to 0x0C
- pci_generic_config_write() effectively writes 0xA8 into register 0x0C (CACHE_LINE_SIZE)
This seems to cause some slight instability when certain PCI devices are used.
Another issue example caused by this this is the PCI bus numbering,
where the primary bus is higher than the secondary, which is impossible.
Before:
00:00.0 PCI bridge: Cavium, Inc. Device 3400 (rev 01) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 255
Bus: primary=02, secondary=01, subordinate=ff, sec-latency=0
After fix:
00:00.0 PCI bridge: Cavium, Inc. Device 3400 (rev 01) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 255
Bus: primary=00, secondary=01, subordinate=02, sec-latency=0
And very likely some more ..
Fix all by omitting the alignment being done in the mapping function.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Backort upstream patch which preserves oif of IPv6 link scoped packets.
The outgoing interface of IPv6 link scope packets can be changed by the
function ip6_route_me_harder. This is unwanted behavior for link local
packets and multicast packets as the outgoing interface is fixed and must
not be altered as it can break neighbor discovery and multicast listener
discovery.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Backport net: Allow class-e address assignment via ifconfig ioctl
While most distributions long ago switched to the iproute2 suite
of utilities, which allow class-e (240.0.0.0/4) address assignment,
distributions relying on busybox, toybox and other forms of
ifconfig cannot assign class-e addresses without this kernel patch.
While CIDR has been obsolete for 2 decades, and a survey of all the
open source code in the world shows the IN_whatever macros are also
obsolete... rather than obsolete CIDR from this ioctl entirely, this
patch merely enables class-e assignment, sanely.
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=65cab850f0eeaa9180bd2e10a231964f33743edf
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Disable Marvell's hardware level MAC learning because it breaks station roaming.
When enabled it drops all frames that arrive from a MAC address
that is on a different port at learning table.
Problem description:
Multiple APs with inter-AP roaming connected to different ports,
when station moves from one AP on one port to another AP on another port,
traffic flow breaks down because the learning table is not updated.
Signed-off-by: Anderson Luiz Alves <alacn1@gmail.com>
[Replaced with upstream version, move to generic]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The ledtrig-netdev was added to upstream Linux kernel 4.16, replace our
own version with the patch based on the upstream version.
This will remove the ledtrig-netdev support from kernel 3.18, because I
not want to spend time on backporting it to 3.18. This will make it
easier to use the upstream version with kernel 4.19, by just not
applying this patch.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The following patch was integrated upstream:
* target/linux/generic/backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch
This fixes tries to work around the following security problems:
* CVE-2018-3620 L1 Terminal Fault OS, SMM related aspects
* CVE-2018-3646 L1 Terminal Fault Virtualization related aspects
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Backport an upstream fix for a remotely exploitable TCP denial of service
flaw in Linux 4.9+.
The fixes are included in Linux 4.14.59 and later but did not yet end up in
version 4.9.118.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Refreshed all patches
Remove upstreamed patches.
- 103-MIPS-ath79-fix-register-address-in-ath79_ddr_wb_flus.patch
- 403-mtd_fix_cfi_cmdset_0002_status_check.patch
- 001-4.11-01-mtd-m25p80-consider-max-message-size-in-m25p80_read.patch
- 001-4.15-08-bcm63xx_enet-correct-clock-usage.patch
- 001-4.15-09-bcm63xx_enet-do-not-write-to-random-DMA-channel-on-B.patch
- 900-gen_stats-fix-netlink-stats-padding.patch
Introduce a new backported patch to address ext4 breakage, introduced in 4.9.112
- backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch
This patch has been slightly altered to compensate for a new helper function
introduced in later kernels.
Also add ARM64_SSBD symbol to ARM64 targets still running kernel 4.9
Compile-tested on: ar71xx, bcm2710
Runtime-tested on: ar71xx
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
This is a new & warm feature that allows nesting partiitons in DT and
mixing their types (e.g. static vs. dynamic). It's very useful for
boards that have most partitions static but some of them require extra
parsing (e.g. a "firmware" partition).
It's required to successfully backport support for new devices using
that new syntax in their DT files.
Since brcm63xx has a custom alternative patch the upstream one is being
reverted for it. The plan is to make brcm63xx use the upstream
implementation.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
The patch got removed by commit 7dca1bae82 (kernel: bump to 4.9.105)
but is still required as ipv6_push_frag_opts needs to be exported.
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Refresh patches.
Drop patches that have been upstreamed:
target/linux/ar71xx/patches-4.9/106-01-MIPS-ath79-fix-AR724X_PLL_REG_PCIE_CONFIG-offset.patch
target/linux/generic/backport-4.9/095-v4.12-ipv6-Need-to-export-ipv6_push_frag_opts-for-tunnelin.patch
target/linux/generic/pending-4.9/180-net-phy-at803x-add-support-for-AT8032.patch
target/linux/generic/pending-4.9/181-net-usb-add-lte-modem-wistron-neweb-d18q1.patch
target/linux/generic/pending-4.9/182-net-qmi_wwan-add-BroadMobi-BM806U-2020-2033.patch
Compile & run tested: ar71xx Archer C7 v2
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
This reverts commit daa73b63d5.
The fix has already been imported by
commit b7735d8113 ("kernel: import follow-up fix for previous backport").
The patch won't apply twice.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Patch is required on top of commit 6c81c27efa as ipv6_push_frag_opts needs to
be exported for usage in ip6_tunnel.c
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
Koen Vandeputte