In early erratas this issue only covered port 0 when changing from
[x]MII (rev A 3.6). In subsequent errata versions this errata changed to
cover the additional "Hardware reset in CPU managed mode" condition, and
removed the note specifying that it only applied to port 0.
In designs where the device is configured with CPU managed mode
(CPU_MGD), on reset all SERDES ports (p0, p9, p10) have a stuck power
down bit and require this initial power up procedure. As such apply this
errata to all three SERDES ports of the mv88e6393x.
Signed-off-by: Nathan Rossi <nathan.rossi@digi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
correct comments in set and get fn_sernum
Signed-off-by: zhang kai <zhangkaiheb@126.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
For VFs we should return with an error in case we didn't get the exact
number of msix vectors as we requested.
Not doing that will lead to a crash when starting queues for this VF.
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Shai Malin <smalin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
"Ma, XinjianX" <xinjianx.ma@intel.com> reported:
> When lkp team run kernel selftests, we found after these series of patches, testcase mqueue: mq_perf_tests
> in kselftest failed with following message.
>
> # selftests: mqueue: mq_perf_tests
> #
> # Initial system state:
> # Using queue path: /mq_perf_tests
> # RLIMIT_MSGQUEUE(soft): 819200
> # RLIMIT_MSGQUEUE(hard): 819200
> # Maximum Message Size: 8192
> # Maximum Queue Size: 10
> # Nice value: 0
> #
> # Adjusted system state for testing:
> # RLIMIT_MSGQUEUE(soft): (unlimited)
> # RLIMIT_MSGQUEUE(hard): (unlimited)
> # Maximum Message Size: 16777216
> # Maximum Queue Size: 65530
> # Nice value: -20
> # Continuous mode: (disabled)
> # CPUs to pin: 3
> # ./mq_perf_tests: mq_open() at 296: Too many open files
> not ok 2 selftests: mqueue: mq_perf_tests # exit=1
> ```
>
> Test env:
> rootfs: debian-10
> gcc version: 9
After investigation the problem turned out to be that ucount_max for
the rlimits in init_user_ns was being set to the initial rlimit value.
The practical problem is that ucount_max provides a limit that
applications inside the user namespace can not exceed. Which means in
practice that rlimits that have been converted to use the ucount
infrastructure were not able to exceend their initial rlimits.
Solve this by setting the relevant values of ucount_max to
RLIM_INIFINITY. A limit in init_user_ns is pointless so the code
should allow the values to grow as large as possible without riscking
an underflow or an overflow.
As the ltp test case was a bit of a pain I have reproduced the rlimit failure
and tested the fix with the following little C program:
> #include <stdio.h>
> #include <fcntl.h>
> #include <sys/stat.h>
> #include <mqueue.h>
> #include <sys/time.h>
> #include <sys/resource.h>
> #include <errno.h>
> #include <string.h>
> #include <stdlib.h>
> #include <limits.h>
> #include <unistd.h>
>
> int main(int argc, char **argv)
> {
> struct mq_attr mq_attr;
> struct rlimit rlim;
> mqd_t mqd;
> int ret;
>
> ret = getrlimit(RLIMIT_MSGQUEUE, &rlim);
> if (ret != 0) {
> fprintf(stderr, "getrlimit(RLIMIT_MSGQUEUE) failed: %s\n", strerror(errno));
> exit(EXIT_FAILURE);
> }
> printf("RLIMIT_MSGQUEUE %lu %lu\n",
> rlim.rlim_cur, rlim.rlim_max);
> rlim.rlim_cur = RLIM_INFINITY;
> rlim.rlim_max = RLIM_INFINITY;
> ret = setrlimit(RLIMIT_MSGQUEUE, &rlim);
> if (ret != 0) {
> fprintf(stderr, "setrlimit(RLIMIT_MSGQUEUE, RLIM_INFINITY) failed: %s\n", strerror(errno));
> exit(EXIT_FAILURE);
> }
>
> memset(&mq_attr, 0, sizeof(struct mq_attr));
> mq_attr.mq_maxmsg = 65536 - 1;
> mq_attr.mq_msgsize = 16*1024*1024 - 1;
>
> mqd = mq_open("/mq_rlimit_test", O_RDONLY|O_CREAT, 0600, &mq_attr);
> if (mqd == (mqd_t)-1) {
> fprintf(stderr, "mq_open failed: %s\n", strerror(errno));
> exit(EXIT_FAILURE);
> }
> ret = mq_close(mqd);
> if (ret) {
> fprintf(stderr, "mq_close failed; %s\n", strerror(errno));
> exit(EXIT_FAILURE);
> }
>
> return EXIT_SUCCESS;
> }
Fixes: 6e52a9f053 ("Reimplement RLIMIT_MSGQUEUE on top of ucounts")
Fixes: d7c9e99aee ("Reimplement RLIMIT_MEMLOCK on top of ucounts")
Fixes: d646969055 ("Reimplement RLIMIT_SIGPENDING on top of ucounts")
Fixes: 21d1c5e386 ("Reimplement RLIMIT_NPROC on top of ucounts")
Reported-by: kernel test robot lkp@intel.com
Acked-by: Alexey Gladkov <legion@kernel.org>
Link: https://lkml.kernel.org/r/87eeajswfc.fsf_-_@disp2133
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Commit 457f44363a ("bpf: Implement BPF ring buffer and verifier support
for it") extended check_map_func_compatibility() by enforcing map -> helper
function match, but not helper -> map type match.
Due to this all of the bpf_ringbuf_*() helper functions could be used with
a wrong map type such as array or hash map, leading to invalid access due
to type confusion.
Also, both BPF_FUNC_ringbuf_{submit,discard} have ARG_PTR_TO_ALLOC_MEM as
argument and not a BPF map. Therefore, their check_map_func_compatibility()
presence is incorrect since it's only for map type checking.
Fixes: 457f44363a ("bpf: Implement BPF ring buffer and verifier support for it")
Reported-by: Ryota Shiga (Flatt Security)
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
This reverts commit 819fbd3d8e.
It turns out that some user-space applications use these uapi header
files, so even though the only user of the interface is an old driver
that was moved to staging, moving the header files causes unnecessary
pain.
Generally, we really don't want user space to use kernel headers
directly (exactly because it causes pain when we re-organize), and
instead copy them as needed. But these things happen, and the headers
were in the uapi directory, so I guess it's not entirely unreasonable.
Link: https://lore.kernel.org/lkml/4e3e0d40-df4a-94f8-7c2d-85010b0873c4@web.de/
Reported-by: Soeren Moch <smoch@web.de>
Cc: stable@kernel.org # 5.13
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull regression fix for the operating performance points (OPP)
framework for v5.15 from Viresh Kumar:
"This fixes regression in the OPP core for a corner case."
* 'opp/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
opp: core: Check for pending links before reading required_opp pointers
Oleksij Rempel says:
====================
asix fixes
changes v2:
- rebase against current net
- add one more fix for the ax88178 variant
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix crash on reboot on a system with ASIX AX88178 USB adapter attached
to it:
| asix 1-1.4:1.0 eth0: unregister 'asix' usb-ci_hdrc.0-1.4, ASIX AX88178 USB 2.0 Ethernet
| 8<--- cut here ---
| Unable to handle kernel NULL pointer dereference at virtual address 0000028c
| pgd = 5ec93aee
| [0000028c] *pgd=00000000
| Internal error: Oops: 5 [#1] PREEMPT SMP ARM
| Modules linked in:
| CPU: 1 PID: 1 Comm: systemd-shutdow Not tainted 5.14.0-rc1-20210811-1 #4
| Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
| PC is at phy_disconnect+0x8/0x48
| LR is at ax88772_unbind+0x14/0x20
| [<80650d04>] (phy_disconnect) from [<80741aa4>] (ax88772_unbind+0x14/0x20)
| [<80741aa4>] (ax88772_unbind) from [<8074e250>] (usbnet_disconnect+0x48/0xd8)
| [<8074e250>] (usbnet_disconnect) from [<807655e0>] (usb_unbind_interface+0x78/0x25c)
| [<807655e0>] (usb_unbind_interface) from [<805b03a0>] (__device_release_driver+0x154/0x20c)
| [<805b03a0>] (__device_release_driver) from [<805b0478>] (device_release_driver+0x20/0x2c)
| [<805b0478>] (device_release_driver) from [<805af944>] (bus_remove_device+0xcc/0xf8)
| [<805af944>] (bus_remove_device) from [<805ab26c>] (device_del+0x178/0x4b0)
| [<805ab26c>] (device_del) from [<807634a4>] (usb_disable_device+0xcc/0x178)
| [<807634a4>] (usb_disable_device) from [<8075a060>] (usb_disconnect+0xd8/0x238)
| [<8075a060>] (usb_disconnect) from [<8075a02c>] (usb_disconnect+0xa4/0x238)
| [<8075a02c>] (usb_disconnect) from [<8075a02c>] (usb_disconnect+0xa4/0x238)
| [<8075a02c>] (usb_disconnect) from [<80af3520>] (usb_remove_hcd+0xa0/0x198)
| [<80af3520>] (usb_remove_hcd) from [<807902e0>] (host_stop+0x38/0xa8)
| [<807902e0>] (host_stop) from [<8078d9e4>] (ci_hdrc_remove+0x3c/0x118)
| [<8078d9e4>] (ci_hdrc_remove) from [<805b27ec>] (platform_remove+0x20/0x50)
| [<805b27ec>] (platform_remove) from [<805b03a0>] (__device_release_driver+0x154/0x20c)
| [<805b03a0>] (__device_release_driver) from [<805b0478>] (device_release_driver+0x20/0x2c)
| [<805b0478>] (device_release_driver) from [<805af944>] (bus_remove_device+0xcc/0xf8)
| [<805af944>] (bus_remove_device) from [<805ab26c>] (device_del+0x178/0x4b0)
For this adapter we call ax88178_bind() and ax88772_unbind(), which is
related to different chip version and different counter part *bind()
function.
Since this chip is currently not ported to the PHYLIB, we do not need to
call phy_disconnect() here. So, to fix this crash, we need to add
ax88178_unbind().
Fixes: e532a096be ("net: usb: asix: ax88772: add phylib support")
Reported-by: Robin van der Gracht <robin@protonic.nl>
Tested-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some HW revisions need additional MAC configuration before the embedded PHY
can be enabled. If this is not done, we won't be able to get response
from the internal PHY.
This issue was detected on chipcode == AX_AX88772_CHIPCODE variant,
where ax88772_hw_reset() was executed with missing embd_phy flag.
Fixes: e532a096be ("net: usb: asix: ax88772: add phylib support")
Reported-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch changes the data type of the variable 'val' from
int to u32.
Addresses-Coverity: argument of type "int *" is incompatible with parameter of type "u32 *"
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/925cebbe4eb73c7d0a536da204748d33c7100d8c.1624448778.git.michal.simek@xilinx.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
According to Armada XP datasheet bit at 0 position is corresponding for
TxInProg indication.
Fixes: c5aff18204 ("net: mvneta: driver for Marvell Armada 370/XP network unit")
Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the case of taprio offload is not enabled, the error handling path
causes a kernel crash due to kernel NULL pointer deference.
Fix this by adding check for NULL before attempt to access 'plat->est'
on the mutex_lock() call.
The following kernel panic is observed without this patch:
RIP: 0010:mutex_lock+0x10/0x20
Call Trace:
tc_setup_taprio+0x482/0x560 [stmmac]
kmem_cache_alloc_trace+0x13f/0x490
taprio_disable_offload.isra.0+0x9d/0x180 [sch_taprio]
taprio_destroy+0x6c/0x100 [sch_taprio]
qdisc_create+0x2e5/0x4f0
tc_modify_qdisc+0x126/0x740
rtnetlink_rcv_msg+0x12b/0x380
_raw_spin_lock_irqsave+0x19/0x40
_raw_spin_unlock_irqrestore+0x18/0x30
create_object+0x212/0x340
rtnl_calcit.isra.0+0x110/0x110
netlink_rcv_skb+0x50/0x100
netlink_unicast+0x191/0x230
netlink_sendmsg+0x243/0x470
sock_sendmsg+0x5e/0x60
____sys_sendmsg+0x20b/0x280
copy_msghdr_from_user+0x5c/0x90
__mod_memcg_state+0x87/0xf0
___sys_sendmsg+0x7c/0xc0
lru_cache_add+0x7f/0xa0
_raw_spin_unlock+0x16/0x30
wp_page_copy+0x449/0x890
handle_mm_fault+0x921/0xfc0
__sys_sendmsg+0x59/0xa0
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
---[ end trace b1f19b24368a96aa ]---
Fixes: b60189e039 ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Cc: <stable@vger.kernel.org> # 5.10.x
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2021-08-20
This series contains updates to igc and e1000e drivers.
Aaron Ma resolves a page fault which occurs when thunderbolt is
unplugged for igc.
Toshiki Nishioka fixes Tx queue looping to use actual number of queues
instead of max value for igc.
Sasha fixes an incorrect latency comparison by decoding the values before
comparing and prevents attempted writes to read-only NVMs for e1000e.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A successful 'xge_mdio_config()' call should be balanced by a corresponding
'xge_mdio_remove()' call in the error handling path of the probe, as
already done in the remove function.
Update the error handling path accordingly.
Fixes: ea8ab16ab2 ("drivers: net: xgene-v2: Add MDIO support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 4fa82a87ba ("opp: Allow required-opps to be used for non genpd
use cases") dereferences the pointers in required_opp_tables but these
might be set to an ERR_PTR if the list still has lazy links pending,
resulting in segfaults. Prior to this patch IS_ERR was also checked on
required_opp_tables[i] before reading ->is_genpd inside
_opp_table_alloc_required_tables, which is at the same time the
predicate to add this table to the lazy list. This segfault is solved
by reordering the checks to bail on lazy pending tables before reading
->is_genpd.
Fixes: 4fa82a87ba ("opp: Allow required-opps to be used for non genpd use cases")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Validate csum_start in gre_handle_offloads before we call _gre_xmit so
that we do not crash later when the csum_start value is used in the
lco_csum function call.
This patch deals with ipv6 code.
Fixes: Fixes: b05229f442 ("gre6: Cleanup GREv6 transmit path, call common
GRE functions")
Reported-by: syzbot+ff8e1b9f2f36481e2efc@syzkaller.appspotmail.com
Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Validate csum_start in gre_handle_offloads before we call _gre_xmit so
that we do not crash later when the csum_start value is used in the
lco_csum function call.
This patch deals with ipv4 code.
Fixes: c544193214 ("GRE: Refactor GRE tunneling code.")
Reported-by: syzbot+ff8e1b9f2f36481e2efc@syzkaller.appspotmail.com
Signed-off-by: Shreyansh Chouhan <chouhan.shreyansh630@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix random crashes on some 32-bit CPUs by adding isync() after locking/unlocking KUEP
- Fix intermittent crashes when loading modules with strict module RWX
- Fix a section mismatch introduce by a previous fix.
Thanks to: Christophe Leroy, Fabiano Rosas, Laurent Vivier, Murilo Opsfelder Araújo,
Nathan Chancellor, Stan Johnson.
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Merge tag 'powerpc-5.14-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix random crashes on some 32-bit CPUs by adding isync() after
locking/unlocking KUEP
- Fix intermittent crashes when loading modules with strict module RWX
- Fix a section mismatch introduce by a previous fix.
Thanks to Christophe Leroy, Fabiano Rosas, Laurent Vivier, Murilo
Opsfelder Araújo, Nathan Chancellor, and Stan Johnson.
h# -----BEGIN PGP SIGNATURE-----
* tag 'powerpc-5.14-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix set_memory_*() against concurrent accesses
powerpc/32s: Fix random crashes by adding isync() after locking/unlocking KUEP
powerpc/xive: Do not mark xive_request_ipi() as __init
The recent commit
064855a690 ("x86/resctrl: Fix default monitoring groups reporting")
caused a RHEL build failure with an uninitialized variable warning
treated as an error because it removed the default case snippet.
The RHEL Makefile uses '-Werror=maybe-uninitialized' to force possibly
uninitialized variable warnings to be treated as errors. This is also
reported by smatch via the 0day robot.
The error from the RHEL build is:
arch/x86/kernel/cpu/resctrl/monitor.c: In function ‘__mon_event_count’:
arch/x86/kernel/cpu/resctrl/monitor.c:261:12: error: ‘m’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
m->chunks += chunks;
^~
The upstream Makefile does not build using '-Werror=maybe-uninitialized'.
So, the problem is not seen there. Fix the problem by putting back the
default case snippet.
[ bp: note that there's nothing wrong with the code and other compilers
do not trigger this warning - this is being done just so the RHEL compiler
is happy. ]
Fixes: 064855a690 ("x86/resctrl: Fix default monitoring groups reporting")
Reported-by: Terry Bowman <Terry.Bowman@amd.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/162949631908.23903.17090272726012848523.stgit@bmoger-ubuntu
- Make the regulator state match the GDSC power domain state at boot
on Qualcomm SoCs so that the regulator isn't turned off
inadvertently.
- Fix earlycon on i.MX6Q SoCs
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk driver fixes from Stephen Boyd:
- Make the regulator state match the GDSC power domain state at boot on
Qualcomm SoCs so that the regulator isn't turned off inadvertently.
- Fix earlycon on i.MX6Q SoCs
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: gdsc: Ensure regulator init state matches GDSC state
clk: imx6q: fix uart earlycon unwork
Here are some small driver fixes for 5.14-rc7.
They consist of:
- revert for an interconnect patch that was found to have
problems.
- ipack tpci200 driver fixes for reported problems
- slimbus messaging and ngd fixes for reported problems.
All are small and have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small driver fixes for 5.14-rc7.
They consist of:
- revert for an interconnect patch that was found to have problems
- ipack tpci200 driver fixes for reported problems
- slimbus messaging and ngd fixes for reported problems
All are small and have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
ipack: tpci200: fix memory leak in the tpci200_register
ipack: tpci200: fix many double free issues in tpci200_pci_probe
slimbus: ngd: reset dma setup during runtime pm
slimbus: ngd: set correct device for pm
slimbus: messaging: check for valid transaction id
slimbus: messaging: start transaction ids from 1 instead of zero
Revert "interconnect: qcom: icc-rpmh: Add BCMs to commit list in pre_aggregate"
Here is a single USB typec tcpm fix for a reported problem for 5.14-rc7.
It showed up in 5.13 and resolves an issue that Hans found. It has been
in linux-next this week with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fix from Greg KH:
"Here is a single USB typec tcpm fix for a reported problem for
5.14-rc7. It showed up in 5.13 and resolves an issue that Hans found.
It has been in linux-next this week with no reported problems"
* tag 'usb-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: typec: tcpm: Fix VDMs sometimes not being forwarded to alt-mode drivers
* A fix to the sifive-l2-cache device tree bindings, for json-schema
compatibility. This does not change the intended behavior of the
binding.
* A fix to avoid improperly freeing necessary resources during early
boot.
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Merge tag 'riscv-for-linus-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- fix the sifive-l2-cache device tree bindings for json-schema
compatibility. This does not change the intended behavior of the
binding.
- avoid improperly freeing necessary resources during early boot.
* tag 'riscv-for-linus-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix a number of free'd resources in init_resources()
dt-bindings: sifive-l2-cache: Fix 'select' matching
- fix use after free of zpci_dev in pci code
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Merge tag 's390-5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fix from Vasily Gorbik:
- fix use after free of zpci_dev in pci code
* tag 's390-5.14-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/pci: fix use after free of zpci_dev
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Merge tag 'locks-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull mandatory file locking deprecation warning from Jeff Layton:
"As discussed on the list, this patch just adds a new warning for folks
who still have mandatory locking enabled and actually mount with '-o
mand'. I'd like to get this in for v5.14 so we can push this out into
stable kernels and hopefully reach folks who have mounts with -o mand.
For now, I'm operating under the assumption that we'll fully remove
this support in v5.15, but we can move that out if any legitimate
users of this facility speak up between now and then"
* tag 'locks-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
fs: warn about impending deprecation of mandatory locks
Commit
79419e13e8 ("x86/boot/compressed/64: Setup IDT in startup_32 boot path")
introduced an IDT into the 32-bit boot path of the decompressor stub.
But the IDT is set up before ExitBootServices() is called, and some UEFI
firmwares rely on their own IDT.
Save the firmware IDT on boot and restore it before calling into EFI
functions to fix boot failures introduced by above commit.
Fixes: 79419e13e8 ("x86/boot/compressed/64: Setup IDT in startup_32 boot path")
Reported-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Cc: stable@vger.kernel.org # 5.13+
Link: https://lkml.kernel.org/r/20210820125703.32410-1-joro@8bytes.org
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Merge tag 'block-5.14-2021-08-20' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Three fixes from Ming Lei that should go into 5.14:
- Fix for a kernel panic when iterating over tags for some cases
where a flush request is present, a regression in this cycle.
- Request timeout fix
- Fix flush request checking"
* tag 'block-5.14-2021-08-20' of git://git.kernel.dk/linux-block:
blk-mq: fix is_flush_rq
blk-mq: fix kernel panic during iterating over flush request
blk-mq: don't grab rq's refcount in blk_mq_check_expired()
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Merge tag 'io_uring-5.14-2021-08-20' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A few small fixes that should go into this release:
- Fix never re-assigning an initial error value for io_uring_enter()
for SQPOLL, if asked to do nothing
- Fix xa_alloc_cycle() return value checking, for cases where we have
wrapped around
- Fix for a ctx pin issue introduced in this cycle (Pavel)"
* tag 'io_uring-5.14-2021-08-20' of git://git.kernel.dk/linux-block:
io_uring: fix xa_alloc_cycle() error return value check
io_uring: pin ctx on fallback execution
io_uring: only assign io_uring_enter() SQPOLL error in actual error case
We've had CONFIG_MANDATORY_FILE_LOCKING since 2015 and a lot of distros
have disabled it. Warn the stragglers that still use "-o mand" that
we'll be dropping support for that mount option.
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Layton <jlayton@kernel.org>
This reverts commit a955318fe6 ("stmmac: align RX buffers"),
which breaks at least one platform (Nvidia Jetson-X1), causing
packet corruption. This is 100% reproducible, and reverting
the patch results in a working system again.
Given that it is "only" a performance optimisation, let's
return to a known working configuration until we can have a
good understanding of what is happening here.
Fixes: a955318fe6 ("stmmac: align RX buffers")
Cc: Matteo Croce <mcroce@linux.microsoft.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Link: https://lore.kernel.org/netdev/871r71azjw.wl-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210820183002.457226-1-maz@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
We currently check for ret != 0 to indicate error, but '1' is a valid
return and just indicates that the allocation succeeded with a wrap.
Correct the check to be for < 0, like it was before the xarray
conversion.
Cc: stable@vger.kernel.org
Fixes: 61cf93700f ("io_uring: Convert personality_idr to XArray")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
- Prevent confusing messages from being printed if the PRMT table
is not present or there are no PRM modules (Aubrey Li).
- Fix the handling of suspend-to-idle entry and exit in the case
when the Microsoft UUID is used with the Low-Power S0 Idle _DSM
interface (Mario Limonciello).
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Merge tag 'acpi-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix two mistakes in new code.
Specifics:
- Prevent confusing messages from being printed if the PRMT table is
not present or there are no PRM modules (Aubrey Li).
- Fix the handling of suspend-to-idle entry and exit in the case when
the Microsoft UUID is used with the Low-Power S0 Idle _DSM
interface (Mario Limonciello)"
* tag 'acpi-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: s2idle: Invert Microsoft UUID entry and exit
ACPI: PRM: Deal with table not present or no module found
- Fix unuseful WARN() in the OPP core and prevent a noisy warning
from being printed by OPP _put functions (Dmitry Osipenko).
- Fix error path when allocation failed in the arm_scmi cpufreq
driver (Lukasz Luba).
- Blacklist Qualcomm sc8180x and Qualcomm sm8150 in
cpufreq-dt-platdev (Bjorn Andersson, Thara Gopinath).
- Forbid cpufreq for 1.2 GHz variant in the armada-37xx cpufreq
driver (Marek Behún).
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Merge tag 'pm-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix some issues in the ARM cpufreq drivers and in the operating
performance points (OPP) framework.
Specifics:
- Fix useless WARN() in the OPP core and prevent a noisy warning
from being printed by OPP _put functions (Dmitry Osipenko).
- Fix error path when allocation failed in the arm_scmi cpufreq
driver (Lukasz Luba).
- Blacklist Qualcomm sc8180x and Qualcomm sm8150 in
cpufreq-dt-platdev (Bjorn Andersson, Thara Gopinath).
- Forbid cpufreq for 1.2 GHz variant in the armada-37xx cpufreq
driver (Marek Behún)"
* tag 'pm-5.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
opp: Drop empty-table checks from _put functions
cpufreq: armada-37xx: forbid cpufreq for 1.2 GHz variant
cpufreq: blocklist Qualcomm sm8150 in cpufreq-dt-platdev
cpufreq: arm_scmi: Fix error path when allocation failed
opp: remove WARN when no valid OPPs remain
cpufreq: blacklist Qualcomm sc8180x in cpufreq-dt-platdev
core:
- fix drm_wait_vblank uapi copying bug
ttm:
- fix debugfs init when debugfs is off
amdgpu:
- vega10 SMU workload fix
- DCN VM fix
- DCN 3.01 watermark fix
amdkfd:
- SVM fix
nouveau:
- ampere display fixes
- remove MM misfeature to fix a longstanding race condition
i915:
- tweaked display workaround for all PCHs
- eDP MSO pipe sanity for ADL-P fix
- remove unused symbol export
mediatek:
- AAL output size setting
- Delete component in remove function
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Merge tag 'drm-fixes-2021-08-20-3' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Regularly scheduled fixes. The ttm one solves a problem of GPU drivers
failing to load if debugfs is off in Kconfig, otherwise the i915 and
mediatek, and amdgpu fixes all fairly normal.
Nouveau has a couple of display fixes, but it has a fix for a
longstanding race condition in it's memory manager code, and the fix
mostly removes some code that wasn't working properly and has no
userspace users. This fix makes the diffstat kinda larger but in a
good (negative line-count) way.
core:
- fix drm_wait_vblank uapi copying bug
ttm:
- fix debugfs init when debugfs is off
amdgpu:
- vega10 SMU workload fix
- DCN VM fix
- DCN 3.01 watermark fix
amdkfd:
- SVM fix
nouveau:
- ampere display fixes
- remove MM misfeature to fix a longstanding race condition
i915:
- tweaked display workaround for all PCHs
- eDP MSO pipe sanity for ADL-P fix
- remove unused symbol export
mediatek:
- AAL output size setting
- Delete component in remove function"
* tag 'drm-fixes-2021-08-20-3' of git://anongit.freedesktop.org/drm/drm:
drm/amd/display: Use DCN30 watermark calc for DCN301
drm/i915/dp: remove superfluous EXPORT_SYMBOL()
drm/i915/edp: fix eDP MSO pipe sanity checks for ADL-P
drm/i915: Tweaked Wa_14010685332 for all PCHs
drm/nouveau: rip out nvkm_client.super
drm/nouveau: block a bunch of classes from userspace
drm/nouveau/fifo/nv50-: rip out dma channels
drm/nouveau/kms/nv50: workaround EFI GOP window channel format differences
drm/nouveau/disp: power down unused DP links during init
drm/nouveau: recognise GA107
drm: Copy drm_wait_vblank to user before returning
drm/amd/display: Ensure DCN save after VM setup
drm/amdkfd: fix random KFDSVMRangeTest.SetGetAttributesTest test failure
drm/amd/pm: change the workload type for some cards
Revert "drm/amd/pm: fix workload mismatch on vega10"
drm: ttm: Don't bail from ttm_global_init if debugfs_create_dir fails
drm/mediatek: Add component_del in OVL and COLOR remove function
drm/mediatek: Add AAL output size configuration
- dw_mmc: Fix hang on data CRC error
- mmci: Fix voltage switch procedure for the stm32 variant
- sdhci-iproc: Fix some clock issues for BCM2711
- sdhci-msm: Fixup software timeout value
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Merge tag 'mmc-v5.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC host fixes from Ulf Hansson:
- dw_mmc: Fix hang on data CRC error
- mmci: Fix voltage switch procedure for the stm32 variant
- sdhci-iproc: Fix some clock issues for BCM2711
- sdhci-msm: Fixup software timeout value
* tag 'mmc-v5.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-iproc: Set SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN on BCM2711
mmc: sdhci-iproc: Cap min clock frequency on BCM2711
mmc: sdhci-msm: Update the software timeout value for sdhc
mmc: mmci: stm32: Check when the voltage switch procedure should be done
mmc: dw_mmc: Fix hang on data CRC error
This is a quick follow up for 5.14: a fix for a very recently
introduced regression on ASoC Intel Atom driver, and another
trivial HD-audio quirk for HP laptops.
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Merge tag 'sound-5.14-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull more sound fixes from Takashi Iwai:
"This is a quick follow up for 5.14: a fix for a very recently
introduced regression on ASoC Intel Atom driver, and another trivial
HD-audio quirk for HP laptops"
* tag 'sound-5.14-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: intel: atom: Fix breakage for PCM buffer address setup
ALSA: hda/realtek: Limit mic boost on HP ProBook 445 G8
- Fix cleaning of vDSO directories
- Ensure CNTHCTL_EL2 is fully initialised when booting at EL2
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Fix cleaning of vDSO directories
- Ensure CNTHCTL_EL2 is fully initialised when booting at EL2
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: initialize all of CNTHCTL_EL2
arm64: clean vdso & vdso32 files
Including:
- Fix for a potential NULL-ptr dereference in IOMMU core code
- Two resource leak fixes
- Cache flush fix in the Intel VT-d driver
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Merge tag 'iommu-fixes-v5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- Fix for a potential NULL-ptr dereference in IOMMU core code
- Two resource leak fixes
- Cache flush fix in the Intel VT-d driver
* tag 'iommu-fixes-v5.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Fix incomplete cache flush in intel_pasid_tear_down_entry()
iommu/vt-d: Fix PASID reference leak
iommu: Check if group is NULL before remove device
iommu/dma: Fix leak in non-contiguous API
1) New index member of struct rxe_queue was introduced but not zeroed so
the initial value of index may be random.
2) The current index is not masked off to index_mask.
In this case producer_addr() and consumer_addr() will get an invalid
address by the random index and then accessing the invalid address
triggers the following panic:
"BUG: unable to handle page fault for address: ffff9ae2c07a1414"
Fix the issue by using kzalloc() to zero out index member.
Fixes: 5bcf5a59c4 ("RDMA/rxe: Protext kernel index from user space")
Link: https://lore.kernel.org/r/20210820111509.172500-1-yangx.jy@fujitsu.com
Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
syzbot hit kernel BUG at fs/hugetlbfs/inode.c:532 as described in [1].
This BUG triggers if the HPageRestoreReserve flag is set on a page in
the page cache. It should never be set, as the routine
huge_add_to_page_cache explicitly clears the flag after adding a page to
the cache.
The only code other than huge page allocation which sets the flag is
restore_reserve_on_error. It will potentially set the flag in rare out
of memory conditions. syzbot was injecting errors to cause memory
allocation errors which exercised this specific path.
The code in restore_reserve_on_error is doing the right thing. However,
there are instances where pages in the page cache were being passed to
restore_reserve_on_error. This is incorrect, as once a page goes into
the cache reservation information will not be modified for the page
until it is removed from the cache. Error paths do not remove pages
from the cache, so even in the case of error, the page will remain in
the cache and no reservation adjustment is needed.
Modify routines that potentially call restore_reserve_on_error with a
page cache page to no longer do so.
Note on fixes tag: Prior to commit 846be08578 ("mm/hugetlb: expand
restore_reserve_on_error functionality") the routine would not process
page cache pages because the HPageRestoreReserve flag is not set on such
pages. Therefore, this issue could not be trigggered. The code added
by commit 846be08578 ("mm/hugetlb: expand restore_reserve_on_error
functionality") is needed and correct. It exposed incorrect calls to
restore_reserve_on_error which is the root cause addressed by this
commit.
[1] https://lore.kernel.org/linux-mm/00000000000050776d05c9b7c7f0@google.com/
Link: https://lkml.kernel.org/r/20210818213304.37038-1-mike.kravetz@oracle.com
Fixes: 846be08578 ("mm/hugetlb: expand restore_reserve_on_error functionality")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: <syzbot+67654e51e54455f1c585@syzkaller.appspotmail.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Originally the addr != NULL check was meant to take care of the case
where __kfence_pool == NULL (KFENCE is disabled). However, this does
not work for addresses where addr > 0 && addr < KFENCE_POOL_SIZE.
This can be the case on NULL-deref where addr > 0 && addr < PAGE_SIZE or
any other faulting access with addr < KFENCE_POOL_SIZE. While the
kernel would likely crash, the stack traces and report might be
confusing due to double faults upon KFENCE's attempt to unprotect such
an address.
Fix it by just checking that __kfence_pool != NULL instead.
Link: https://lkml.kernel.org/r/20210818130300.2482437-1-elver@google.com
Fixes: 0ce20dd840 ("mm: add Kernel Electric-Fence infrastructure")
Signed-off-by: Marco Elver <elver@google.com>
Reported-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Acked-by: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org> [5.12+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In a debugging session the other day, Rik noticed that node_reclaim()
was missing memstall annotations. This means we'll miss pressure and
lost productivity resulting from reclaim on an overloaded local NUMA
node when vm.zone_reclaim_mode is enabled.
There haven't been any reports, but that's likely because
vm.zone_reclaim_mode hasn't been a commonly used feature recently, and
the intersection between such setups and psi users is probably nil.
But secondary memory such as CXL-connected DIMMS, persistent memory etc,
and the page demotion patches that handle them
(https://lore.kernel.org/lkml/20210401183216.443C4443@viggo.jf.intel.com/)
could soon make this a more common codepath again.
Link: https://lkml.kernel.org/r/20210818152457.35846-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reported-by: Rik van Riel <riel@surriel.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
HWPoisonHandlable() sometimes returns false for typical user pages due
to races with average memory events like transfers over LRU lists. This
causes failures in hwpoison handling.
There's retry code for such a case but does not work because the retry
loop reaches the retry limit too quickly before the page settles down to
handlable state. Let get_any_page() call shake_page() to fix it.
[naoya.horiguchi@nec.com: get_any_page(): return -EIO when retry limit reached]
Link: https://lkml.kernel.org/r/20210819001958.2365157-1-naoya.horiguchi@linux.dev
Link: https://lkml.kernel.org/r/20210817053703.2267588-1-naoya.horiguchi@linux.dev
Fixes: 25182f05ff ("mm,hwpoison: fix race with hugetlb page allocation")
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reported-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org> [5.13+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
