A collection of HD-audio quirks for TAS2781 codec and device-specific
workarounds.
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Merge tag 'sound-6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of HD-audio quirks for TAS2781 codec and device-specific
workarounds"
* tag 'sound-6.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/tas2781: reset the amp before component_add
ALSA: hda/tas2781: call cleanup functions only once
ALSA: hda/tas2781: handle missing EFI calibration data
ALSA: hda/tas2781: leave hda_component in usable state
ALSA: hda/realtek: Apply mute LED quirk for HP15-db
ALSA: hda/hdmi: add force-connect quirks for ASUSTeK Z170 variants
ALSA: hda/hdmi: add force-connect quirk for NUC5CPYB
drm:
- fix uninit problems in crtc
- fix fd ownership check
- edid: add modes in fallback paths
panel:
- move LG panel into DSI yaml
- ltk050h3146w: set burst mode
mediatek:
- mtk_disp_gamma: Fix breakage due to merge issue
- fix kernel oops if no crtc is found
- Add spinlock for setting vblank event in atomic_begin
- Fix access violation in mtk_drm_crtc_dma_dev_get
i915:
- Fix selftest engine reset count storage for multi-tile
- Fix out-of-bounds reads for engine reset counts
- Fix ADL+ remapped stride with CCS
- Fix intel_atomic_setup_scalers() plane_state handling
- Fix ADL+ tiled plane stride when the POT stride is smaller than the original
- Fix eDP 1.4 rate select method link configuration
amdgpu:
- Fix suspend fix that got accidently mangled last week
- Fix OD regression
- PSR fixes
- OLED Backlight regression fix
- JPEG 4.0.5 fix
- Misc display fixes
- SDMA 5.2 fix
- SDMA 2.4 regression fix
- GPUVM race fix
nouveau:
- fix gk20a instobj hierarchy
- fix headless iors inheritance regression
ivpu:
- fix WA initialisation
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Merge tag 'drm-fixes-2023-12-15' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"More regular fixes, amdgpu, i915, mediatek and nouveau are most of
them this week. Nothing too major, then a few misc bits and pieces in
core, panel and ivpu.
drm:
- fix uninit problems in crtc
- fix fd ownership check
- edid: add modes in fallback paths
panel:
- move LG panel into DSI yaml
- ltk050h3146w: set burst mode
mediatek:
- mtk_disp_gamma: Fix breakage due to merge issue
- fix kernel oops if no crtc is found
- Add spinlock for setting vblank event in atomic_begin
- Fix access violation in mtk_drm_crtc_dma_dev_get
i915:
- Fix selftest engine reset count storage for multi-tile
- Fix out-of-bounds reads for engine reset counts
- Fix ADL+ remapped stride with CCS
- Fix intel_atomic_setup_scalers() plane_state handling
- Fix ADL+ tiled plane stride when the POT stride is smaller than the original
- Fix eDP 1.4 rate select method link configuration
amdgpu:
- Fix suspend fix that got accidently mangled last week
- Fix OD regression
- PSR fixes
- OLED Backlight regression fix
- JPEG 4.0.5 fix
- Misc display fixes
- SDMA 5.2 fix
- SDMA 2.4 regression fix
- GPUVM race fix
nouveau:
- fix gk20a instobj hierarchy
- fix headless iors inheritance regression
ivpu:
- fix WA initialisation"
* tag 'drm-fixes-2023-12-15' of git://anongit.freedesktop.org/drm/drm: (31 commits)
drm/nouveau/kms/nv50-: Don't allow inheritance of headless iors
drm/nouveau: Fixup gk20a instobj hierarchy
drm/amdgpu: warn when there are still mappings when a BO is destroyed v2
drm/amdgpu: fix tear down order in amdgpu_vm_pt_free
drm/amd: Fix a probing order problem on SDMA 2.4
drm/amdgpu/sdma5.2: add begin/end_use ring callbacks
drm/panel: ltk050h3146w: Set burst mode for ltk050h3148w
dt-bindings: panel-simple-dsi: move LG 5" HD TFT LCD panel into DSI yaml
drm/amd/display: Disable PSR-SU on Parade 0803 TCON again
drm/amd/display: Populate dtbclk from bounding box
drm/amd/display: Revert "Fix conversions between bytes and KB"
drm/amdgpu/jpeg: configure doorbell for each playback
drm/amd/display: Restore guard against default backlight value < 1 nit
drm/amd/display: fix hw rotated modes when PSR-SU is enabled
drm/amd/pm: fix pp_*clk_od typo
drm/amdgpu: fix buffer funcs setting order on suspend harder
drm/mediatek: Fix access violation in mtk_drm_crtc_dma_dev_get
drm/edid: also call add modes in EDID connector update fallback
drm/i915/edp: don't write to DP_LINK_BW_SET when using rate select
drm/i915: Fix ADL+ tiled plane stride when the POT stride is smaller than the original
...
apply_alternatives() treats alternatives with the ALT_FLAG_NOT flag set
special as it optimizes the existing NOPs in place.
Unfortunately, this happens with interrupts enabled and does not provide any
form of core synchronization.
So an interrupt hitting in the middle of the update and using the affected code
path will observe a half updated NOP and crash and burn. The following
3 NOP sequence was observed to expose this crash halfway reliably under QEMU
32bit:
0x90 0x90 0x90
which is replaced by the optimized 3 byte NOP:
0x8d 0x76 0x00
So an interrupt can observe:
1) 0x90 0x90 0x90 nop nop nop
2) 0x8d 0x90 0x90 undefined
3) 0x8d 0x76 0x90 lea -0x70(%esi),%esi
4) 0x8d 0x76 0x00 lea 0x0(%esi),%esi
Where only #1 and #4 are true NOPs. The same problem exists for 64bit obviously.
Disable interrupts around this NOP optimization and invoke sync_core()
before re-enabling them.
Fixes: 270a69c448 ("x86/alternative: Support relocations in alternatives")
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/ZT6narvE%2BLxX%2B7Be@windriver.com
text_poke_early() does:
local_irq_save(flags);
memcpy(addr, opcode, len);
local_irq_restore(flags);
sync_core();
That's not really correct because the synchronization should happen before
interrupts are re-enabled to ensure that a pending interrupt observes the
complete update of the opcodes.
It's not entirely clear whether the interrupt entry provides enough
serialization already, but moving the sync_core() invocation into interrupt
disabled region does no harm and is obviously correct.
Fixes: 6fffacb303 ("x86/alternatives, jumplabel: Use text_poke_early() before mm_init()")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/ZT6narvE%2BLxX%2B7Be@windriver.com
Chris reported that a Dell PowerEdge T340 system stopped to boot when upgrading
to a kernel which contains the parallel hotplug changes. Disabling parallel
hotplug on the kernel command line makes it boot again.
It turns out that the Dell BIOS has x2APIC enabled and the boot CPU comes up in
X2APIC mode, but the APs come up inconsistently in xAPIC mode.
Parallel hotplug requires that the upcoming CPU reads out its APIC ID from the
local APIC in order to map it to the Linux CPU number.
In this particular case the readout on the APs uses the MMIO mapped registers
because the BIOS failed to enable x2APIC mode. That readout results in a page
fault because the kernel does not have the APIC MMIO space mapped when X2APIC
mode was enabled by the BIOS on the boot CPU and the kernel switched to X2APIC
mode early. That page fault can't be handled on the upcoming CPU that early and
results in a silent boot failure.
If parallel hotplug is disabled the system boots because in that case the APIC
ID read is not required as the Linux CPU number is provided to the AP in the
smpboot control word. When the kernel uses x2APIC mode then the APs are
switched to x2APIC mode too slightly later in the bringup process, but there is
no reason to do it that late.
Cure the BIOS bogosity by checking in the parallel bootup path whether the
kernel uses x2APIC mode and if so switching over the APs to x2APIC mode before
the APIC ID readout.
Fixes: 0c7ffa32db ("x86/smpboot/64: Implement arch_cpuhp_init_parallel_bringup() and enable it")
Reported-by: Chris Lindee <chris.lindee@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Ashok Raj <ashok.raj@intel.com>
Tested-by: Chris Lindee <chris.lindee@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/CA%2B2tU59853R49EaU_tyvOZuOTDdcU0RshGyydccp9R1NX9bEeQ@mail.gmail.com
Remove double-mapping of DMA buffers as it can prevent page pool entries
from being freed. Mapping is managed by page pool infrastructure and
was previously managed by the driver in __bnxt_alloc_rx_page before
allowing the page pool infrastructure to manage it.
Fixes: 578fcfd26e ("bnxt_en: Let the page pool manage the DMA mapping")
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: David Wei <dw@davidwei.uk>
Link: https://lore.kernel.org/r/20231214213138.98095-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The SOC_HW_VERSION register in the BHI space is not correctly initialized
by the device and in many cases contains uninitialized data. The register
could contain 0xFFFFFFFF which is a special value to indicate a link
error in PCIe, therefore if observed, we could incorrectly think the
device is down.
Intercept reads for this register, and provide the correct value - every
production instance would read 0x60110200 if the device was operating as
intended.
Fixes: a36bf7af86 ("accel/qaic: Add MHI controller")
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231208163101.1295769-3-quic_jhugo@quicinc.com
Do not modify the size of dmabuf as it is immutable.
Fixes: ff13be8303 ("accel/qaic: Add datapath")
Signed-off-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231208163101.1295769-2-quic_jhugo@quicinc.com
This can cause a race with bt_sock_ioctl() because
bt_sock_recvmsg() gets the skb from sk->sk_receive_queue
and then frees it without holding lock_sock.
A use-after-free for a skb occurs with the following flow.
```
bt_sock_recvmsg() -> skb_recv_datagram() -> skb_free_datagram()
bt_sock_ioctl() -> skb_peek()
```
Add lock_sock to bt_sock_recvmsg() to fix this issue.
Cc: stable@vger.kernel.org
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
If two Bluetooth devices both support BR/EDR and BLE, and also
support Secure Connections, then they only need to pair once.
The LTK generated during the LE pairing process may be converted
into a BR/EDR link key for BR/EDR transport, and conversely, a
link key generated during the BR/EDR SSP pairing process can be
converted into an LTK for LE transport. Hence, the link type of
the link key and LTK is not fixed, they can be either an LE LINK
or an ACL LINK.
Currently, in the mgmt_new_irk/ltk/crsk/link_key functions, the
link type is fixed, which could lead to incorrect address types
being reported to the application layer. Therefore, it is necessary
to add link_type/addr_type to the smp_irk/ltk/crsk and link_key,
to ensure the generation of the correct address type.
SMP over BREDR:
Before Fix:
> ACL Data RX: Handle 11 flags 0x02 dlen 12
BR/EDR SMP: Identity Address Information (0x09) len 7
Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 00:00:00:00:00:00 (Non-Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
After Fix:
> ACL Data RX: Handle 11 flags 0x02 dlen 12
BR/EDR SMP: Identity Address Information (0x09) len 7
Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 00:00:00:00:00:00 (Non-Resolvable)
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
SMP over LE:
Before Fix:
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 5F:5C:07:37:47:D5 (Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
@ MGMT Event: New Link Key (0x0009) plen 26
BR/EDR Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated Combination key from P-256 (0x08)
After Fix:
@ MGMT Event: New Identity Resolving Key (0x0018) plen 30
Random address: 5E:03:1C:00:38:21 (Resolvable)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
@ MGMT Event: New Long Term Key (0x000a) plen 37
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated key from P-256 (0x03)
@ MGMT Event: New Link Key (0x0009) plen 26
Store hint: Yes (0x01)
LE Address: F8:7D:76:F2:12:F3 (OUI F8-7D-76)
Key type: Authenticated Combination key from P-256 (0x08)
Cc: stable@vger.kernel.org
Signed-off-by: Xiao Yao <xiaoyao@rock-chips.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
L2CAP/COS/CED/BI-02-C PTS test send a malformed L2CAP signaling packet
with 2 commands in it (a connection request and an unknown command) and
expect to get a connection response packet and a command reject packet.
The second is currently not sent.
Cc: stable@vger.kernel.org
Signed-off-by: Frédéric Danis <frederic.danis@collabora.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
hci_conn_hash_lookup_cis shall always match the requested CIG and CIS
ids even when they are unset as otherwise it result in not being able
to bind/connect different sockets to the same address as that would
result in having multiple sockets mapping to the same hci_conn which
doesn't really work and prevents BAP audio configuration such as
AC 6(i) when CIG and CIS are left unset.
Fixes: c14516faed ("Bluetooth: hci_conn: Fix not matching by CIS ID")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Turning on -Wstringop-overflow globally exposed a misleading compiler
warning in bluetooth:
net/bluetooth/hci_event.c: In function 'hci_cc_read_class_of_dev':
net/bluetooth/hci_event.c:524:9: error: 'memcpy' writing 3 bytes into a
region of size 0 overflows the destination [-Werror=stringop-overflow=]
524 | memcpy(hdev->dev_class, rp->dev_class, 3);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The problem here is the check for hdev being NULL in bt_dev_dbg() that
leads the compiler to conclude that hdev->dev_class might be an invalid
pointer access.
Add another explicit check for the same condition to make sure gcc sees
this cannot happen.
Fixes: a9de924806 ("[Bluetooth] Switch from OGF+OCF to using only opcodes")
Fixes: 1b56c90018f0 ("Makefile: Enable -Wstringop-overflow globally")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Before setting HCI_INQUIRY bit check if HCI_OP_INQUIRY was really sent
otherwise the controller maybe be generating invalid events or, more
likely, it is a result of fuzzing tools attempting to test the right
behavior of the stack when unexpected events are generated.
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218151
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Some layers such as SMP depend on getting notified about encryption
changes immediately as they only allow certain PDU to be transmitted
over an encrypted link which may cause SMP implementation to reject
valid PDUs received thus causing pairing to fail when it shouldn't.
Fixes: 7aca0ac479 ("Bluetooth: Wait for HCI_OP_WRITE_AUTH_PAYLOAD_TO to complete")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Rather than using svc_get() and svc_put() to hold a stable reference to
the nfsd_svc for netlink lookups, simply hold the mutex for the entire
time.
The "entire" time isn't very long, and the mutex is not often contented.
This makes way for us to remove the refcounts of svc, which is more
confusing than useful.
Reported-by: Jeff Layton <jlayton@kernel.org>
Closes: https://lore.kernel.org/linux-nfs/5d9bbb599569ce29f16e4e0eef6b291eda0f375b.camel@kernel.org/T/#u
Fixes: bd9d6a3efa ("NFSD: add rpc_status netlink support")
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
If write_ports_addfd or write_ports_addxprt fail, they call nfsd_put()
without calling nfsd_last_thread(). This leaves nn->nfsd_serv pointing
to a structure that has been freed.
So remove 'static' from nfsd_last_thread() and call it when the
nfsd_serv is about to be destroyed.
Fixes: ec52361df9 ("SUNRPC: stop using ->sv_nrthreads as a refcount")
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
As the ring buffer recording requires cmpxchg() to work, if the
architecture does not support cmpxchg in NMI, then do not do any recording
within an NMI.
Link: https://lore.kernel.org/linux-trace-kernel/20231213175403.6fc18540@gandalf.local.home
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The rb_time_cmpxchg() on 32-bit architectures requires setting three
32-bit words to represent the 64-bit timestamp, with some salt for
synchronization. Those are: msb, top, and bottom
The issue is, the rb_time_cmpxchg() did not properly salt the msb portion,
and the msb that was written was stale.
Link: https://lore.kernel.org/linux-trace-kernel/20231215084114.20899342@rorschach.local.home
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fixes: f03f2abce4 ("ring-buffer: Have 32 bit time stamps use all 64 bits")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The following race can cause rb_time_read() to observe a corrupted time
stamp:
rb_time_cmpxchg()
[...]
if (!rb_time_read_cmpxchg(&t->msb, msb, msb2))
return false;
if (!rb_time_read_cmpxchg(&t->top, top, top2))
return false;
<interrupted before updating bottom>
__rb_time_read()
[...]
do {
c = local_read(&t->cnt);
top = local_read(&t->top);
bottom = local_read(&t->bottom);
msb = local_read(&t->msb);
} while (c != local_read(&t->cnt));
*cnt = rb_time_cnt(top);
/* If top and msb counts don't match, this interrupted a write */
if (*cnt != rb_time_cnt(msb))
return false;
^ this check fails to catch that "bottom" is still not updated.
So the old "bottom" value is returned, which is wrong.
Fix this by checking that all three of msb, top, and bottom 2-bit cnt
values match.
The reason to favor checking all three fields over requiring a specific
update order for both rb_time_set() and rb_time_cmpxchg() is because
checking all three fields is more robust to handle partial failures of
rb_time_cmpxchg() when interrupted by nested rb_time_set().
Link: https://lore.kernel.org/lkml/20231211201324.652870-1-mathieu.desnoyers@efficios.com/
Link: https://lore.kernel.org/linux-trace-kernel/20231212193049.680122-1-mathieu.desnoyers@efficios.com
Fixes: f458a14534 ("ring-buffer: Test last update in 32bit version of __rb_time_read()")
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Mathieu Desnoyers pointed out an issue in the rb_time_cmpxchg() for 32 bit
architectures. That is:
static bool rb_time_cmpxchg(rb_time_t *t, u64 expect, u64 set)
{
unsigned long cnt, top, bottom, msb;
unsigned long cnt2, top2, bottom2, msb2;
u64 val;
/* The cmpxchg always fails if it interrupted an update */
if (!__rb_time_read(t, &val, &cnt2))
return false;
if (val != expect)
return false;
<<<< interrupted here!
cnt = local_read(&t->cnt);
The problem is that the synchronization counter in the rb_time_t is read
*after* the value of the timestamp is read. That means if an interrupt
were to come in between the value being read and the counter being read,
it can change the value and the counter and the interrupted process would
be clueless about it!
The counter needs to be read first and then the value. That way it is easy
to tell if the value is stale or not. If the counter hasn't been updated,
then the value is still good.
Link: https://lore.kernel.org/linux-trace-kernel/20231211201324.652870-1-mathieu.desnoyers@efficios.com/
Link: https://lore.kernel.org/linux-trace-kernel/20231212115301.7a9c9a64@gandalf.local.home
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Fixes: 10464b4aa6 ("ring-buffer: Add rb_time_t 64 bit operations for speeding up 32 bit")
Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
When filtering is enabled, a temporary buffer is created to place the
content of the trace event output so that the filter logic can decide
from the trace event output if the trace event should be filtered out or
not. If it is to be filtered out, the content in the temporary buffer is
simply discarded, otherwise it is written into the trace buffer.
But if an interrupt were to come in while a previous event was using that
temporary buffer, the event written by the interrupt would actually go
into the ring buffer itself to prevent corrupting the data on the
temporary buffer. If the event is to be filtered out, the event in the
ring buffer is discarded, or if it fails to discard because another event
were to have already come in, it is turned into padding.
The update to the write_stamp in the rb_try_to_discard() happens after a
fix was made to force the next event after the discard to use an absolute
timestamp by setting the before_stamp to zero so it does not match the
write_stamp (which causes an event to use the absolute timestamp).
But there's an effort in rb_try_to_discard() to put back the write_stamp
to what it was before the event was added. But this is useless and
wasteful because nothing is going to be using that write_stamp for
calculations as it still will not match the before_stamp.
Remove this useless update, and in doing so, we remove another
cmpxchg64()!
Also update the comments to reflect this change as well as remove some
extra white space in another comment.
Link: https://lore.kernel.org/linux-trace-kernel/20231215081810.1f4f38fe@rorschach.local.home
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Fixes: b2dd797543 ("ring-buffer: Force absolute timestamp on discard of event")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
If an update to an event is interrupted by another event between the time
the initial event allocated its buffer and where it wrote to the
write_stamp, the code try to reset the write stamp back to the what it had
just overwritten. It knows that it was overwritten via checking the
before_stamp, and if it didn't match what it wrote to the before_stamp
before it allocated its space, it knows it was overwritten.
To put back the write_stamp, it uses the before_stamp it read. The problem
here is that by writing the before_stamp to the write_stamp it makes the
two equal again, which means that the write_stamp can be considered valid
as the last timestamp written to the ring buffer. But this is not
necessarily true. The event that interrupted the event could have been
interrupted in a way that it was interrupted as well, and can end up
leaving with an invalid write_stamp. But if this happens and returns to
this context that uses the before_stamp to update the write_stamp again,
it can possibly incorrectly make it valid, causing later events to have in
correct time stamps.
As it is OK to leave this function with an invalid write_stamp (one that
doesn't match the before_stamp), there's no reason to try to make it valid
again in this case. If this race happens, then just leave with the invalid
write_stamp and the next event to come along will just add a absolute
timestamp and validate everything again.
Bonus points: This gets rid of another cmpxchg64!
Link: https://lore.kernel.org/linux-trace-kernel/20231214222921.193037a7@gandalf.local.home
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Vincent Donnefort <vdonnefort@google.com>
Fixes: a389d86f7f ("ring-buffer: Have nested events still record running time stamp")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Here "temp" is the number of characters that we have written and "size"
is the size of the buffer. The intent was clearly to say that if we have
written to the end of the buffer then stop.
However, for that to work the comparison should have been done on the
original "size" value instead of the "size -= temp" value. Not only
will that not trigger when we want to, but there is a small chance that
it will trigger incorrectly before we want it to and we break from the
loop slightly earlier than intended.
This code was recently changed from using snprintf() to scnprintf(). With
snprintf() we likely would have continued looping and passed a negative
size parameter to snprintf(). This would have triggered an annoying
WARN(). Now that we have converted to scnprintf() "size" will never
drop below 1 and there is no real need for this test. We could change
the condition to "if (temp <= 1) goto done;" but just deleting the test
is cleanest.
Fixes: 7d50195f6c ("usb: host: Faraday fotg210-hcd driver")
Cc: stable <stable@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/ZXmwIwHe35wGfgzu@suswa
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This flash drive reports write protect during the first mode sense.
In the past this was not an issue as the kernel called revalidate twice,
thus asking the device for its write protect status twice, with write
protect being disabled in the second mode sense.
However, since commit 1e029397d1 ("scsi: sd: Reorganize DIF/DIX code to
avoid calling revalidate twice") that is no longer the case, thus the
device shows up read only.
[490891.289495] sd 12:0:0:0: [sdl] Write Protect is on
[490891.289497] sd 12:0:0:0: [sdl] Mode Sense: 2b 00 80 08
This does not appear to be a timing issue, as enabling the usbcore quirk
USB_QUIRK_DELAY_INIT has no effect on write protect.
Fixes: 1e029397d1 ("scsi: sd: Reorganize DIF/DIX code to avoid calling revalidate twice")
Cc: stable <stable@kernel.org>
Signed-off-by: Tasos Sahanidis <tasos@tasossah.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20231207134441.298131-1-tasos@tasossah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the recently added connector sanity check which was off by one and
prevented orientation notifications from being handled correctly for the
second port when using GPIOs to determine orientation.
Fixes: c6165ed2f4 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
Cc: stable <stable@kernel.org>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20231208123603.29957-1-johan+linaro@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When the device is disconnected we get the following messages showing
failed operations:
Nov 28 20:22:11 localhost kernel: usb 2-3: USB disconnect, device number 2
Nov 28 20:22:11 localhost kernel: ax88179_178a 2-3:1.0 enp2s0u3: unregister 'ax88179_178a' usb-0000:02:00.0-3, ASIX AX88179 USB 3.0 Gigabit Ethernet
Nov 28 20:22:11 localhost kernel: ax88179_178a 2-3:1.0 enp2s0u3: Failed to read reg index 0x0002: -19
Nov 28 20:22:11 localhost kernel: ax88179_178a 2-3:1.0 enp2s0u3: Failed to write reg index 0x0002: -19
Nov 28 20:22:11 localhost kernel: ax88179_178a 2-3:1.0 enp2s0u3 (unregistered): Failed to write reg index 0x0002: -19
Nov 28 20:22:11 localhost kernel: ax88179_178a 2-3:1.0 enp2s0u3 (unregistered): Failed to write reg index 0x0001: -19
Nov 28 20:22:11 localhost kernel: ax88179_178a 2-3:1.0 enp2s0u3 (unregistered): Failed to write reg index 0x0002: -19
The reason is that although the device is detached, normal stop and
unbind operations are commanded from the driver. These operations are
not necessary in this situation, so avoid these logs when the device is
detached if the result of the operation is -ENODEV and if the new flag
informing about the disconnecting status is enabled.
cc: <stable@vger.kernel.org>
Fixes: e2ca90c276 ("ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver")
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20231207175007.263907-1-jtornosm@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver uses MMIO access for reading NVRAM from a flash device.
Underneath there is a flash controller that reads data and provides
mapping window.
Using MMIO interface affects controller configuration and may break real
controller driver. It was reported by multiple users of devices with
NVRAM stored on NAND.
Modify driver to read & cache NVRAM content during init and use that
copy to provide NVMEM data when requested. On NAND flashes due to their
alignment NVRAM partitions can be quite big (1 MiB and more) while
actual NVRAM content stays quite small (usually 16 to 32 KiB). To avoid
allocating so much memory check for actual data length.
Link: https://lore.kernel.org/linux-mtd/CACna6rwf3_9QVjYcM+847biTX=K0EoWXuXcSMkJO1Vy_5vmVqA@mail.gmail.com/
Fixes: 3fef9ed062 ("nvmem: brcm_nvram: new driver exposing Broadcom's NVRAM")
Cc: <Stable@vger.kernel.org>
Cc: Arınç ÜNAL <arinc.unal@arinc9.com>
Cc: Florian Fainelli <florian.fainelli@broadcom.com>
Cc: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20231215111358.316727-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Both imx23.dtsi and imx28.dtsi describe the OCOTP nodes in
the format:
compatible = "fsl,imx28-ocotp", "fsl,ocotp";
Document the "fsl,ocotp" entry to fix the following schema
warning:
efuse@8002c000: compatible: ['fsl,imx23-ocotp', 'fsl,ocotp'] is too long
from schema $id: http://devicetree.org/schemas/nvmem/mxs-ocotp.yaml#
Fixes: 2c504460f5 ("dt-bindings: nvmem: Convert MXS OCOTP to json-schema")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20231215111358.316727-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When lockdep is enabled, the for_each_sibling_event(sibling, event)
macro checks that event->ctx->mutex is held. When creating a new group
leader event, we call perf_event_validate_size() on a partially
initialized event where event->ctx is NULL, and so when
for_each_sibling_event() attempts to check event->ctx->mutex, we get a
splat, as reported by Lucas De Marchi:
WARNING: CPU: 8 PID: 1471 at kernel/events/core.c:1950 __do_sys_perf_event_open+0xf37/0x1080
This only happens for a new event which is its own group_leader, and in
this case there cannot be any sibling events. Thus it's safe to skip the
check for siblings, which avoids having to make invasive and ugly
changes to for_each_sibling_event().
Avoid the splat by bailing out early when the new event is its own
group_leader.
Fixes: 382c27f4ed ("perf: Fix perf_event_validate_size()")
Closes: https://lore.kernel.org/lkml/20231214000620.3081018-1-lucas.demarchi@intel.com/
Closes: https://lore.kernel.org/lkml/ZXpm6gQ%2Fd59jGsuW@xpf.sh.intel.com/
Reported-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20231215112450.3972309-1-mark.rutland@arm.com
In the error handling of 'offset > adapter->ring_size', the
tx_ring->tx_buffer allocated by kzalloc should be freed,
instead of 'goto failed' instantly.
Fixes: a6a5325239 ("atl1e: Atheros L1E Gigabit Ethernet driver")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Reviewed-by: Suman Ghosh <sumang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The following NULL pointer dereference issue occurred:
BUG: kernel NULL pointer dereference, address: 0000000000000000
<...>
RIP: 0010:ccid_hc_tx_send_packet net/dccp/ccid.h:166 [inline]
RIP: 0010:dccp_write_xmit+0x49/0x140 net/dccp/output.c:356
<...>
Call Trace:
<TASK>
dccp_sendmsg+0x642/0x7e0 net/dccp/proto.c:801
inet_sendmsg+0x63/0x90 net/ipv4/af_inet.c:846
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x83/0xe0 net/socket.c:745
____sys_sendmsg+0x443/0x510 net/socket.c:2558
___sys_sendmsg+0xe5/0x150 net/socket.c:2612
__sys_sendmsg+0xa6/0x120 net/socket.c:2641
__do_sys_sendmsg net/socket.c:2650 [inline]
__se_sys_sendmsg net/socket.c:2648 [inline]
__x64_sys_sendmsg+0x45/0x50 net/socket.c:2648
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x43/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
sk_wait_event() returns an error (-EPIPE) if disconnect() is called on the
socket waiting for the event. However, sk_stream_wait_connect() returns
success, i.e. zero, even if sk_wait_event() returns -EPIPE, so a function
that waits for a connection with sk_stream_wait_connect() may misbehave.
In the case of the above DCCP issue, dccp_sendmsg() is waiting for the
connection. If disconnect() is called in concurrently, the above issue
occurs.
This patch fixes the issue by returning error from sk_stream_wait_connect()
if sk_wait_event() fails.
Fixes: 419ce133ab ("tcp: allow again tcp_disconnect() when threads are waiting")
Signed-off-by: Shigeru Yoshida <syoshida@redhat.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reported-by: syzbot+c71bc336c5061153b502@syzkaller.appspotmail.com
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: syzkaller <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
During PFC configuration failure the code was not handling a graceful
exit. This patch fixes the same and add proper code for a graceful exit.
Fixes: 99c969a83d ("octeontx2-pf: Add egress PFC support")
Signed-off-by: Suman Ghosh <sumang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ifconfig ethx up, will set page->refcount larger than 1,
and then ifconfig ethx down, calling __page_frag_cache_drain()
to free pages, it is not compatible with page pool.
So deleting codes which changing page->refcount.
Fixes: 3c47e8ae11 ("net: libwx: Support to receive packets in NAPI")
Signed-off-by: duanqiangwen <duanqiangwen@net-swift.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, cur_prog/cur_conf remains at the default value (-1), while
program 0 has been loaded into the amplifiers.
In the playback hook, tasdevice_tuning_switch tries to restore the
cur_prog/cur_conf. In the runtime_resume/system_resume,
tasdevice_prmg_load tries to load the cur_prog as well.
Set cur_prog and cur_conf to 0 if available in the firmware.
Fixes: 5be27f1e3e ("ALSA: hda/tas2781: Add tas2781 HDA driver")
CC: stable@vger.kernel.org
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Link: https://lore.kernel.org/r/038add0bdca1f979cc7abcce8f24cbcd3544084b.1702596646.git.soyer@irl.hu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Turns out we made a silly mistake when coming up with OR inheritance on
nouveau. On pre-DCB 4.1, iors are statically routed to output paths via the
DCB. On later generations iors are only routed to an output path if they're
actually being used. Unfortunately, it appears with NVIF_OUTP_INHERIT_V0 we
make the mistake of assuming the later is true on all generations, which is
currently leading us to return bogus ior -> head assignments through nvif,
which causes WARN_ON().
So - fix this by verifying that we actually know that there's a head
assigned to an ior before allowing it to be inherited through nvif. This
-should- hopefully fix the WARN_ON on GT218 reported by Borislav.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Reported-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231214004359.1028109-1-lyude@redhat.com
Commit 12c9b05da9 ("drm/nouveau/imem: support allocations not
preserved across suspend") uses container_of() to cast from struct
nvkm_memory to struct nvkm_instobj, assuming that all instance objects
are derived from struct nvkm_instobj. For the gk20a family that's not
the case and they are derived from struct nvkm_memory instead. This
causes some subtle data corruption (nvkm_instobj.preserve ends up
mapping to gk20a_instobj.vaddr) that causes a NULL pointer dereference
in gk20a_instobj_acquire_iommu() (and possibly elsewhere) and also
prevents suspend/resume from working.
Fix this by making struct gk20a_instobj derive from struct nvkm_instobj
instead.
Fixes: 12c9b05da9 ("drm/nouveau/imem: support allocations not preserved across suspend")
Reported-by: Jonathan Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231208104653.1917055-1-thierry.reding@gmail.com
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Merge tag '6.7-rc5-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Address OOBs and NULL dereference found by Dr. Morris's recent
analysis and fuzzing.
All marked for stable as well"
* tag '6.7-rc5-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: fix OOB in smb2_query_reparse_point()
smb: client: fix NULL deref in asn1_ber_decoder()
smb: client: fix potential OOBs in smb2_parse_contexts()
smb: client: fix OOB in receive_encrypted_standard()
