- Nov 21, 2020
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengineLinus Torvalds authored
Pull dmaengine fixes from Vinod Koul: "A solitary core fix and a few driver fixes: Core: - channel_register error handling Driver fixes: - idxd: wq config registers programming and mapping of portal size - ioatdma: unused fn removal - pl330: fix burst size - ti: pm fix on busy and -Wenum-conversion warns - xilinx: SG capability check, usage of xilinx_aximcdma_tx_segment, readl_poll_timeout_atomic variant" * tag 'dmaengine-fix-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: dmaengine: fix error codes in channel_register() dmaengine: pl330: _prep_dma_memcpy: Fix wrong burst size dmaengine: ioatdma: remove unused function missed during dma_v2 removal dmaengine: idxd: fix mapping of portal size dmaengine: ti: omap-dma: Block PM if SDMA is busy to fix audio dmaengine: xilinx_dma: Fix SG capability check for MCDMA dmaengine: xilinx_dma: Fix usage of xilinx_aximcdma_tx_segment dmaengine: xilinx_dma: use readl_poll_timeout_atomic variant dmaengine: ti: k3-udma: fix -Wenum-conversion warning dmaengine: idxd: fix wq config registers offset programming
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull iommu fixes from Will Deacon: "Two straightforward vt-d fixes: - Fix boot when intel iommu initialisation fails under TXT (tboot) - Fix intel iommu compilation error when DMAR is enabled without ATS and temporarily update IOMMU MAINTAINERs entry" * tag 'iommu-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: MAINTAINERS: Temporarily add myself to the IOMMU entry iommu/vt-d: Fix compile error with CONFIG_PCI_ATS not set iommu/vt-d: Avoid panic if iommu init fails in tboot system
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds authored
Pull MMC fixes from Ulf Hansson: "A couple of MMC fixes: - sdhci-of-arasan: Stabilize communication by fixing tap value configs - sdhci-pci: Use SDR25 timing for HS mode for BYT-based Intel HWs" * tag 'mmc-v5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: mmc: sdhci-of-arasan: Issue DLL reset explicitly mmc: sdhci-of-arasan: Use Mask writes for Tap delays mmc: sdhci-of-arasan: Allow configuring zero tap values mmc: sdhci-pci: Prefer SDR25 timing for High Speed mode for BYT-based Intel controllers
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "A collection of small fixes: the only core change is a minor error code handling in the control API, and all the rest are device-specific fixes, mostly quirks, fixups and ASoC Intel fixes. It looks boring, and good so" * tag 'sound-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: mixart: Fix mutex deadlock ALSA: hda/ca0132: Fix compile warning without PCI ASOC: Intel: kbl_rt5663_rt5514_max98927: Do not try to disable disabled clock ALSA: usb-audio: Add delay quirk for all Logitech USB devices ASoC: Intel: catpt: Correct clock selection for dai trigger ASoC: Intel: catpt: Skip position update for unprepared streams ASoC: qcom: lpass-platform: Fix memory leak ASoC: Intel: KMB: Fix S24_LE configuration ALSA: hda: Add Alderlake-S PCI ID and HDMI codec vid ALSA: usb-audio: Use ALC1220-VB-DT mapping for ASUS ROG Strix TRX40 mobo ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() ASoC: rt1015: increase the time to detect BCLK ALSA: ctl: fix error path at adding user-defined element set ALSA: hda/realtek - HP Headset Mic can't detect after boot ALSA: hda/realtek - Add supported mute Led for HP ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) ALSA: hda/realtek - Add supported for Lenovo ThinkPad Headset Button ASoC: rt1015: add delay to fix pop noise from speaker
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git://anongit.freedesktop.org/drm/drmLinus Torvalds authored
Pull drm fixes from Dave Airlie: "Weekly fixes pull. This contains some fixes for sun4i/dw-hdmi probing, then amdgpu enables arcturus hw without experimental flag and two other fixes and a group of i915 fixes. It also has a backported from next fix for the warn on reported in ast/drm_gem_vram_helper code in the merge window. There's a separate report which initially looked to be the same problem, but I'm going to chase that up next week a bit more as I don't think the bisect landed anywhere useful. Summary: core: - vram helper TTM regression fix amdgpu: - Pageflip fix for navi1x with 5 or 6 displays - Remove experimental flag for Arcturus - Fix regression in atomic commit tail rework i915: - Fix tgl power gating issue - Memory leak fixes - Selftest fixes - Display bpc fix - Fix TGL MOCS for PTE tracking dw-hdmi: - probing fix sun4i: - probing fix" * tag 'drm-fixes-2020-11-20-2' of git://anongit.freedesktop.org/drm/drm: drm/i915/gt: Fixup tgl mocs for PTE tracking drm/vram-helper: Fix use of top-down placement drm/i915/gt: Remember to free the virtual breadcrumbs drm/i915: Handle max_bpc==16 drm/amd/display: Always get CRTC updated constant values inside commit tail drm/sun4i: backend: Fix probe failure with multiple backends drm/sun4i: dw-hdmi: fix error return code in sun8i_dw_hdmi_bind() drm/i915/selftests: Fix wrong return value of perf_request_latency() drm/i915/selftests: Fix wrong return value of perf_series_engines() drm/i915: Avoid memory leak with more than 16 workarounds on a list drm/i915/tgl: Fix Media power gate sequence. drm/amdgpu: remove experimental flag from arcturus drm/amd/display: Add missing pflip irq for dcn2.0 drm/i915/gvt: return error when failing to take the module reference drm: bridge: dw-hdmi: Avoid resetting force in the detect function drm/i915/gvt: Set ENHANCED_FRAME_CAP bit drm/i915/gvt: Temporarily disable vfio_edid for BXT/APL
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- Nov 20, 2020
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Dave Airlie authored
Merge tag 'drm-intel-fixes-2020-11-19' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - Fix tgl power gating issue (Rodrigo) - Memory leak fixes (Tvrtko, Chris) - Selftest fixes (Zhang) - Display bpc fix (Ville) - Fix TGL MOCS for PTE tracking (Chris) GVT Fixes: It temporarily disables VFIO edid feature on BXT/APL until its virtual display is really fixed to make it work properly. And fixes for DPCD 1.2 and error return in taking module reference. Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201119203417.GA1795798@intel.com
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git://anongit.freedesktop.org/drm/drm-miscDave Airlie authored
two patches to fix dw-hdmi bind and detection code, and one fix for sun4i shared with arm-soc Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20201119083939.ddj3saipyg5iwvb4@gilmour
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.10-rc5, including fixes from the WiFi (mac80211), can and bpf (including the strncpy_from_user fix). Current release - regressions: - mac80211: fix memory leak of filtered powersave frames - mac80211: free sta in sta_info_insert_finish() on errors to avoid sleeping in atomic context - netlabel: fix an uninitialized variable warning added in -rc4 Previous release - regressions: - vsock: forward all packets to the host when no H2G is registered, un-breaking AWS Nitro Enclaves - net: Exempt multicast addresses from five-second neighbor lifetime requirement, decreasing the chances neighbor tables fill up - net/tls: fix corrupted data in recvmsg - qed: fix ILT configuration of SRC block - can: m_can: process interrupt only when not runtime suspended Previous release - always broken: - page_frag: Recover from memory pressure by not recycling pages allocating from the reserves - strncpy_from_user: Mask out bytes after NUL terminator - ip_tunnels: Set tunnel option flag only when tunnel metadata is present, always setting it confuses Open vSwitch - bpf, sockmap: - Fix partial copy_page_to_iter so progress can still be made - Fix socket memory accounting and obeying SO_RCVBUF - net: Have netpoll bring-up DSA management interface - net: bridge: add missing counters to ndo_get_stats64 callback - tcp: brr: only postpone PROBE_RTT if RTT is < current min_rtt - enetc: Workaround MDIO register access HW bug - net/ncsi: move netlink family registration to a subsystem init, instead of tying it to driver probe - net: ftgmac100: unregister NC-SI when removing driver to avoid crash - lan743x: - prevent interrupt storm on open - fix freeing skbs in the wrong context - net/mlx5e: Fix socket refcount leak on kTLS RX resync - net: dsa: mv88e6xxx: Avoid VLAN database corruption on 6097 - fix 21 unset return codes and other mistakes on error paths, mostly detected by the Hulk Robot" * tag 'net-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (115 commits) fail_function: Remove a redundant mutex unlock selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL lib/strncpy_from_user.c: Mask out bytes after NUL terminator. net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid() net/smc: fix matching of existing link groups ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module libbpf: Fix VERSIONED_SYM_COUNT number parsing net/mlx4_core: Fix init_hca fields offset atm: nicstar: Unmap DMA on send error page_frag: Recover from memory pressure net: dsa: mv88e6xxx: Wait for EEPROM done after HW reset mlxsw: core: Use variable timeout for EMAD retries mlxsw: Fix firmware flashing net: Have netpoll bring-up DSA management interface atl1e: fix error return code in atl1e_probe() atl1c: fix error return code in atl1c_probe() ah6: fix error return code in ah6_input() net: usb: qmi_wwan: Set DTR quirk for MR400 can: m_can: process interrupt only when not runtime suspended can: flexcan: flexcan_chip_start(): fix erroneous flexcan_transceiver_enable() during bus-off recovery ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds authored
Pull rdma fixes from Jason Gunthorpe: "The last two weeks have been quiet here, just the usual smattering of long standing bug fixes. A collection of error case bug fixes: - Improper nesting of spinlock types in cm - Missing error codes and kfree() - Ensure dma_virt_ops users have the right kconfig symbols to work properly - Compilation failure of tools/testing" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: tools/testing/scatterlist: Fix test to compile and run IB/hfi1: Fix error return code in hfi1_init_dd() RMDA/sw: Don't allow drivers using dma_virt_ops on highmem configs RDMA/pvrdma: Fix missing kfree() in pvrdma_register_device() RDMA/cm: Make the local_id_table xarray non-irq
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfJakub Kicinski authored
Alexei Starovoitov says: ==================== 1) libbpf should not attempt to load unused subprogs, from Andrii. 2) Make strncpy_from_user() mask out bytes after NUL terminator, from Daniel. 3) Relax return code check for subprograms in the BPF verifier, from Dmitrii. 4) Fix several sockmap issues, from John. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: fail_function: Remove a redundant mutex unlock selftest/bpf: Test bpf_probe_read_user_str() strips trailing bytes after NUL lib/strncpy_from_user.c: Mask out bytes after NUL terminator. libbpf: Fix VERSIONED_SYM_COUNT number parsing bpf, sockmap: Avoid failures from skb_to_sgvec when skb has frag_list bpf, sockmap: Handle memory acct if skb_verdict prog redirects to self bpf, sockmap: Avoid returning unneeded EAGAIN when redirecting to self bpf, sockmap: Use truesize with sk_rmem_schedule() bpf, sockmap: Ensure SO_RCVBUF memory is observed on ingress redirect bpf, sockmap: Fix partial copy_page_to_iter so progress can still be made selftests/bpf: Fix error return code in run_getsockopt_test() bpf: Relax return code check for subprograms tools, bpftool: Add missing close before bpftool net attach exit MAINTAINERS/bpf: Update Andrii's entry. selftests/bpf: Fix unused attribute usage in subprogs_unused test bpf: Fix unsigned 'datasec_id' compared with zero in check_pseudo_btf_id bpf: Fix passing zero to PTR_ERR() in bpf_btf_printf_prepare libbpf: Don't attempt to load unused subprog as an entry-point BPF program ==================== Link: https://lore.kernel.org/r/20201119200721.288-1-alexei.starovoitov@gmail.com Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Chris Wilson authored
Forcing mocs:1 [used for our winsys follows-pte mode] to be cached caused display glitches. Though it is documented as deprecated (and so likely behaves as uncached) use the follow-pte bit and force it out of L3 cache. Testcase: igt/kms_frontbuffer_tracking Testcase: igt/kms_big_fb Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Ayaz A Siddiqui <ayaz.siddiqui@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201015122138.30161-4-chris@chris-wilson.co.uk (cherry picked from commit a04ac827) Fixes: 849c0fe9 ("drm/i915/gt: Initialize reserved and unspecified MOCS indices") Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> [Rodrigo: Updated Fixes tag]
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Dave Airlie authored
Merge tag 'amd-drm-fixes-5.10-2020-11-18' of git://people.freedesktop.org/~agd5f/linux into drm-fixes amd-drm-fixes-5.10-2020-11-18: amdgpu: - Pageflip fix for navi1x with 5 or 6 displays - Remove experimental flag for Arcturus - Fix regression in atomic commit tail rework Signed-off-by:
Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201118213646.4015-1-alexander.deucher@amd.com
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Luo Meng authored
Fix a mutex_unlock() issue where before copy_from_user() is not called mutex_locked. Fixes: 4b1a29a7 ("error-injection: Support fault injection framework") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Luo Meng <luomeng12@huawei.com> Signed-off-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/bpf/160570737118.263807.8358435412898356284.stgit@devnote2
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Alexei Starovoitov authored
Daniel Xu says: ==================== 6ae08ae3 ("bpf: Add probe_read_{user, kernel} and probe_read_{user, kernel}_str helpers") introduced a subtle bug where bpf_probe_read_user_str() would potentially copy a few extra bytes after the NUL terminator. This issue is particularly nefarious when strings are used as map keys, as seemingly identical strings can occupy multiple entries in a map. This patchset fixes the issue and introduces a selftest to prevent future regressions. v6 -> v7: * Add comments v5 -> v6: * zero-pad up to sizeof(unsigned long) after NUL v4 -> v5: * don't read potentially uninitialized memory v3 -> v4: * directly pass userspace pointer to prog * test more strings of different length v2 -> v3: * set pid filter before attaching prog in selftest * use long instead of int as bpf_probe_read_user_str() retval * style changes v1 -> v2: * add Fixes: tag * add selftest ==================== Signed-off-by:
Alexei Starovoitov <ast@kernel.org>
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Daniel Xu authored
Previously, bpf_probe_read_user_str() could potentially overcopy the trailing bytes after the NUL due to how do_strncpy_from_user() does the copy in long-sized strides. The issue has been fixed in the previous commit. This commit adds a selftest that ensures we don't regress bpf_probe_read_user_str() again. Signed-off-by:
Daniel Xu <dxu@dxuuu.xyz> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
Song Liu <songliubraving@fb.com> Acked-by:
Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/4d977508fab4ec5b7b574b85bdf8b398868b6ee9.1605642949.git.dxu@dxuuu.xyz
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Daniel Xu authored
do_strncpy_from_user() may copy some extra bytes after the NUL terminator into the destination buffer. This usually does not matter for normal string operations. However, when BPF programs key BPF maps with strings, this matters a lot. A BPF program may read strings from user memory by calling the bpf_probe_read_user_str() helper which eventually calls do_strncpy_from_user(). The program can then key a map with the destination buffer. BPF map keys are fixed-width and string-agnostic, meaning that map keys are treated as a set of bytes. The issue is when do_strncpy_from_user() overcopies bytes after the NUL terminator, it can result in seemingly identical strings occupying multiple slots in a BPF map. This behavior is subtle and totally unexpected by the user. This commit masks out the bytes following the NUL while preserving long-sized stride in the fast path. Fixes: 6ae08ae3 ("bpf: Add probe_read_{user, kernel} and probe_read_{user, ke...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: "Fixes for CVE-2020-4788. From Daniel's cover letter: IBM Power9 processors can speculatively operate on data in the L1 cache before it has been completely validated, via a way-prediction mechanism. It is not possible for an attacker to determine the contents of impermissible memory using this method, since these systems implement a combination of hardware and software security measures to prevent scenarios where protected data could be leaked. However these measures don't address the scenario where an attacker induces the operating system to speculatively execute instructions using data that the attacker controls. This can be used for example to speculatively bypass "kernel user access prevention" techniques, as discovered by Anthony Steinhauser of Google's Safeside Project. This is not an attack by itself, but there is a possibility it could be used in conjunction with side-channels or other weaknesses in the privileged code to construct an attack. This issue can be mitigated by flushing the L1 cache between privilege boundaries of concern. This patch series flushes the L1 cache on kernel entry (patch 2) and after the kernel performs any user accesses (patch 3). It also adds a self-test and performs some related cleanups" * tag 'powerpc-cve-2020-4788' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: rename pnv|pseries_setup_rfi_flush to _setup_security_mitigations selftests/powerpc: refactor entry and rfi_flush tests selftests/powerpc: entry flush test powerpc: Only include kup-radix.h for 64-bit Book3S powerpc/64s: flush L1D after user accesses powerpc/64s: flush L1D on kernel entry selftests/powerpc: rfi_flush: disable entry flush if present
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git://github.com/jcmvbkbc/linux-xtensaLinus Torvalds authored
Pull xtensa fixes from Max Filippov: - fix placement of cache alias remapping area - disable preemption around cache alias management calls - add missing __user annotation to strncpy_from_user argument * tag 'xtensa-20201119' of git://github.com/jcmvbkbc/linux-xtensa: xtensa: uaccess: Add missing __user to strncpy_from_user() prototype xtensa: disable preemption around cache alias management calls xtensa: fix TLBTEMP area placement
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Thomas Zimmermann authored
Commit 7053e0ea ("drm/vram-helper: stop using TTM placement flags") cleared the BO placement flags if top-down placement had been selected. Hence, BOs that were supposed to go into VRAM are now placed in a default location in system memory. Trying to scanout the incorrectly pinned BO results in displayed garbage and an error message. [ 146.108127] ------------[ cut here ]------------ [ 146.1V08180] WARNING: CPU: 0 PID: 152 at drivers/gpu/drm/drm_gem_vram_helper.c:284 drm_gem_vram_offset+0x59/0x60 [drm_vram_helper] ... [ 146.108591] ast_cursor_page_flip+0x3e/0x150 [ast] [ 146.108622] ast_cursor_plane_helper_atomic_update+0x8a/0xc0 [ast] [ 146.108654] drm_atomic_helper_commit_planes+0x197/0x4c0 [ 146.108699] drm_atomic_helper_commit_tail_rpm+0x59/0xa0 [ 146.108718] commit_tail+0x103/0x1c0 ... [ 146.109302] ---[ end trace d901a1ba1d949036 ]--- Fix the bug by keeping the placement flags. The top-down placement flag is stored in a separate variable. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Christian König <christian.koenig@amd.com> Fixes: 7053e0ea ("drm/vram-helper: stop using TTM placement flags") Reported-by: Pu Wen <puwen@hygon.cn> [for 5.10-rc1] Tested-by:
Pu Wen <puwen@hygon.cn> Cc: Christian König <christian.koenig@amd.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20200921142536.4392-1-tzimmermann@suse.de (cherry picked from commit b8f8dbf6 ) [pulled into fixes from drm-next] Signed-off-by:
Dave Airlie <airlied@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI fixes from Rafael Wysocki: "These fix recent regression in the APEI code and initialization issue in the ACPI fan driver. Specifics: - Make the APEI code avoid attempts to obtain logical addresses for registers located in the I/O address space to fix initialization issues (Aili Yao) - Fix sysfs attribute initialization in the ACPI fan driver (Guenter Roeck)" * tag 'acpi-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI, APEI, Fix error return value in apei_map_generic_address() ACPI: fan: Initialize performance state sysfs attribute
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management fixes from Rafael Wysocki: "These fix two issues in ARM cpufreq drivers and one cpuidle driver issue. Specifics: - Add missing RCU_NONIDLE() annotations to the Tegra cpuidle driver (Dmitry Osipenko) - Fix boot frequency computation in the tegra186 cpufreq driver (Jon Hunter) - Make the SCMI cpufreq driver register a dummy clock provider to avoid OPP addition failures (Sudeep Holla)" * tag 'pm-5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpufreq: scmi: Fix OPP addition failure with a dummy clock provider cpufreq: tegra186: Fix get frequency callback cpuidle: tegra: Annotate tegra_pm_set_cpu_in_lp2() with RCU_NONIDLE
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi fixes from Mark Brown: "This is a relatively large set of fixes, the bulk of it being a series from Lukas Wunner which fixes confusion with the lifetime of driver data allocated along with the SPI controller structure that's been created as part of the conversion to devm APIs. The simplest fix, explained in detail in Lukas' commit message, is to move to a devm_ function for allocation of the controller and hence driver data in order to push the free of that after anything tries to reference the driver data in the remove path. This results in a relatively large diff due to the addition of a new function but isn't particularly complex. There's also a fix from Sven van Asbroeck which fixes yet more fallout from the conflicts between the various different places one can configure the polarity of GPIOs in modern systems. Otherwise everything is fairly small and driver specific" * tag 'spi-fix-v5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: npcm-fiu: Don't leak SPI master in probe error path spi: dw: Set transfer handler before unmasking the IRQs spi: cadence-quadspi: Fix error return code in cqspi_probe spi: bcm2835aux: Restore err assignment in bcm2835aux_spi_probe spi: lpspi: Fix use-after-free on unbind spi: bcm-qspi: Fix use-after-free on unbind spi: bcm2835aux: Fix use-after-free on unbind spi: bcm2835: Fix use-after-free on unbind spi: Introduce device-managed SPI controller allocation spi: fsi: Fix transfer returning without finalizing message spi: fix client driver breakages when using GPIO descriptors
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Jakub Kicinski authored
Karsten Graul says: ==================== net/smc: fixes 2020-11-18 Patch 1 fixes the matching of link groups because with SMC-Dv2 the vlanid should no longer be part of this matching. Patch 2 removes a sparse message. ==================== Link: https://lore.kernel.org/r/20201118214038.24039-1-kgraul@linux.ibm.com Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Karsten Graul authored
Sparse complaints 3 times about: net/smc/smc_ib.c:203:52: warning: incorrect type in argument 1 (different address spaces) net/smc/smc_ib.c:203:52: expected struct net_device const *dev net/smc/smc_ib.c:203:52: got struct net_device [noderef] __rcu *const ndev Fix that by using the existing and validated ndev variable instead of accessing attr->ndev directly. Fixes: 5102eca9 ("net/smc: Use rdma_read_gid_l2_fields to L2 fields") Signed-off-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Karsten Graul authored
With the multi-subnet support of SMC-Dv2 the match for existing link groups should not include the vlanid of the network device. Set ini->smcd_version accordingly before the call to smc_conn_create() and use this value in smc_conn_create() to skip the vlanid check. Fixes: 5c21c4cc ("net/smc: determine accepted ISM devices") Signed-off-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Takashi Iwai authored
Merge tag 'asoc-fix-v5.10-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.11 A collection of driver specific fixes, mostly for x86 systems (or CODECs used mostly on x86) and all for relatively minor issues, the biggest one being fixing S24_LE format on Keem Bay systems.
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Linus Torvalds authored
Merge tag 'regulator-fix-v5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fixes from Mark Brown: "Mostly core fixes here, one set from Michał Mirosław which cleans up some issues introduced as part of the coupled regulators work, one memory leak during probe and two due to regulators which have an input supply name and regulator name which are identical, which is very unusual. There's also a fix for our handling of the similarly unusual case where we can't determine if a regulator is enabled during boot" * tag 'regulator-fix-v5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: ti-abb: Fix array out of bound read access on the first transition regulator: workaround self-referent regulators regulator: avoid resolve_supply() infinite recursion regulator: fix memory leak with repeated set_machine_constraints() regulator: pfuze100: limit pfuze-support-disable-sw to pfuze{100,200} regulator: core: don't disable regulator if is_enabled return error.
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Georg Kohmann authored
IPV6=m NF_DEFRAG_IPV6=y ld: net/ipv6/netfilter/nf_conntrack_reasm.o: in function `nf_ct_frag6_gather': net/ipv6/netfilter/nf_conntrack_reasm.c:462: undefined reference to `ipv6_frag_thdr_truncated' Netfilter is depending on ipv6 symbol ipv6_frag_thdr_truncated. This dependency is forcing IPV6=y. Remove this dependency by moving ipv6_frag_thdr_truncated out of ipv6. This is the same solution as used with a similar issues: Referring to commit 70b095c8 ("ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module") Fixes: 9d9e937b ("ipv6/netfilter: Discard first fragment not including all headers") Reported-by:
Randy Dunlap <rdunlap@infradead.org> Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Georg Kohmann <geokohma@cisco.com> Acked-by:
Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Link: https://lore.kernel.org/r/20201119095833.8409-1-geokohma@cisco.com Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linuxLinus Torvalds authored
Pull thermal fix from Daniel Lezcano: "Disable the CPU PM notifier for OMAP4430 for suspend in order to prevent wrong temperature leading to a critical shutdown (Peter Ujfalusi)" * tag 'thermal-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: thermal: ti-soc-thermal: Disable the CPU PM notifier for OMAP4430
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Takashi Iwai authored
The code change for switching to non-atomic mode brought the unexpected mutex deadlock in get_msg(). It converted the spinlock with the existing mutex, but there were calls with the already holding the mutex. Since the only place that needs the extra lock is the code path from snd_mixart_send_msg(), remove the mutex lock in get_msg() and apply in the caller side for fixing the mutex deadlock. Fixes: 8d3a8b5c ("ALSA: mixart: Use nonatomic PCM ops") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201119121440.18945-1-tiwai@suse.de Signed-off-by:
Takashi Iwai <tiwai@suse.de>
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Jiri Olsa authored
We remove "other info" from "readelf -s --wide" output when parsing GLOBAL_SYM_COUNT variable, which was added in [1]. But we don't do that for VERSIONED_SYM_COUNT and it's failing the check_abi target on powerpc Fedora 33. The extra "other info" wasn't problem for VERSIONED_SYM_COUNT parsing until commit [2] added awk in the pipe, which assumes that the last column is symbol, but it can be "other info". Adding "other info" removal for VERSIONED_SYM_COUNT the same way as we did for GLOBAL_SYM_COUNT parsing. [1] aa915931 ("libbpf: Fix readelf output parsing for Fedora") [2] 746f534a ("tools/libbpf: Avoid counting local symbols in ABI check") Fixes: 746f534a ("tools/libbpf: Avoid counting local symbols in ABI check") Signed-off-by:
Jiri Olsa <jolsa@kernel.org> Signed-off-by:
Alexei Starovoitov <ast@kernel.org> Acked-by:
Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20201118211350.1493421-1-jolsa@kernel.org
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- Nov 19, 2020
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Rafael J. Wysocki authored
* acpi-fan: ACPI: fan: Initialize performance state sysfs attribute
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Rafael J. Wysocki authored
* pm-cpuidle: cpuidle: tegra: Annotate tegra_pm_set_cpu_in_lp2() with RCU_NONIDLE
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Daniel Axtens authored
pseries|pnv_setup_rfi_flush already does the count cache flush setup, and we just added entry and uaccess flushes. So the name is not very accurate any more. In both platforms we then also immediately setup the STF flush. Rename them to _setup_security_mitigations and fold the STF flush in. Signed-off-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Daniel Axtens authored
For simplicity in backporting, the original entry_flush test contained a lot of duplicated code from the rfi_flush test. De-duplicate that code. Signed-off-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Daniel Axtens authored
Add a test modelled on the RFI flush test which counts the number of L1D misses doing a simple syscall with the entry flush on and off. For simplicity of backporting, this test duplicates a lot of code from rfi_flush. We clean that up in the next patch. Signed-off-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Michael Ellerman authored
In kup.h we currently include kup-radix.h for all 64-bit builds, which includes Book3S and Book3E. The latter doesn't make sense, Book3E never uses the Radix MMU. This has worked up until now, but almost by accident, and the recent uaccess flush changes introduced a build breakage on Book3E because of the bad structure of the code. So disentangle things so that we only use kup-radix.h for Book3S. This requires some more stubs in kup.h and fixing an include in syscall_64.c. Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Nicholas Piggin authored
IBM Power9 processors can speculatively operate on data in the L1 cache before it has been completely validated, via a way-prediction mechanism. It is not possible for an attacker to determine the contents of impermissible memory using this method, since these systems implement a combination of hardware and software security measures to prevent scenarios where protected data could be leaked. However these measures don't address the scenario where an attacker induces the operating system to speculatively execute instructions using data that the attacker controls. This can be used for example to speculatively bypass "kernel user access prevention" techniques, as discovered by Anthony Steinhauser of Google's Safeside Project. This is not an attack by itself, but there is a possibility it could be used in conjunction with side-channels or other weaknesses in the privileged code to construct an attack. This issue can be mitigated by flushing the L1 cache between privilege boundaries of concern. This patch flushes the L1 cache after user accesses. This is part of the fix for CVE-2020-4788. Signed-off-by:
Nicholas Piggin <npiggin@gmail.com> Signed-off-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Nicholas Piggin authored
IBM Power9 processors can speculatively operate on data in the L1 cache before it has been completely validated, via a way-prediction mechanism. It is not possible for an attacker to determine the contents of impermissible memory using this method, since these systems implement a combination of hardware and software security measures to prevent scenarios where protected data could be leaked. However these measures don't address the scenario where an attacker induces the operating system to speculatively execute instructions using data that the attacker controls. This can be used for example to speculatively bypass "kernel user access prevention" techniques, as discovered by Anthony Steinhauser of Google's Safeside Project. This is not an attack by itself, but there is a possibility it could be used in conjunction with side-channels or other weaknesses in the privileged code to construct an attack. This issue can be mitigated by flushing the L1 cache between privilege boundaries of concern. This patch flushes the L1 cache on kernel entry. This is part of the fix for CVE-2020-4788. Signed-off-by:
Nicholas Piggin <npiggin@gmail.com> Signed-off-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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Russell Currey authored
We are about to add an entry flush. The rfi (exit) flush test measures the number of L1D flushes over a syscall with the RFI flush enabled and disabled. But if the entry flush is also enabled, the effect of enabling and disabling the RFI flush is masked. If there is a debugfs entry for the entry flush, disable it during the RFI flush and restore it later. Reported-by:
Spoorthy S <spoorts2@in.ibm.com> Signed-off-by:
Russell Currey <ruscur@russell.cc> Signed-off-by:
Daniel Axtens <dja@axtens.net> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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