- 06 Feb, 2020 7 commits
-
-
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommuLinus Torvalds authored
Pull m68knommu updates from Greg Ungerer: "A couple of changes: - remove old CONFIG options from the m68knommu defconfig files - fix a warning in the m68k non-MMU get_user() macro" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: fix memcpy() out of bounds warning in get_user() m68k: configs: Cleanup old Kconfig IO scheduler options
-
git://github.com/cschaufler/smack-nextLinus Torvalds authored
Pull smack fix from Casey Schaufler: "One fix for an obscure error found using an old version of ping(1) that did not use IPv6 sockets in the documented way" * tag 'Smack-for-5.6' of git://github.com/cschaufler/smack-next: broken ping to ipv6 linklocal addresses on debian buster
-
git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull moar xfs updates from Darrick Wong: "This contains the buffer error code refactoring I mentioned last week, now that it has had extra time to complete the full xfs fuzz testing suite to make sure there aren't any obvious new bugs" * tag 'xfs-5.6-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: fix xfs_buf_ioerror_alert location reporting xfs: remove unnecessary null pointer checks from _read_agf callers xfs: make xfs_*read_agf return EAGAIN to ALLOC_FLAG_TRYLOCK callers xfs: remove the xfs_btree_get_buf[ls] functions xfs: make xfs_trans_get_buf return an error code xfs: make xfs_trans_get_buf_map return an error code xfs: make xfs_buf_read return an error code xfs: make xfs_buf_get_uncached return an error code xfs: make xfs_buf_get return an error code xfs: make xfs_buf_read_map return an error code xfs: make xfs_buf_get_map return an error code xfs: make xfs_buf_alloc return an error code
-
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing updates from Steven Rostedt: - Added new "bootconfig". This looks for a file appended to initrd to add boot config options, and has been discussed thoroughly at Linux Plumbers. Very useful for adding kprobes at bootup. Only enabled if "bootconfig" is on the real kernel command line. - Created dynamic event creation. Merges common code between creating synthetic events and kprobe events. - Rename perf "ring_buffer" structure to "perf_buffer" - Rename ftrace "ring_buffer" structure to "trace_buffer" Had to rename existing "trace_buffer" to "array_buffer" - Allow trace_printk() to work withing (some) tracing code. - Sort of tracing configs to be a little better organized - Fixed bug where ftrace_graph hash was not being protected properly - Various other small fixes and clean ups * tag 'trace-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (88 commits) bootconfig: Show the number of nodes on boot message tools/bootconfig: Show the number of bootconfig nodes bootconfig: Add more parse error messages bootconfig: Use bootconfig instead of boot config ftrace: Protect ftrace_graph_hash with ftrace_sync ftrace: Add comment to why rcu_dereference_sched() is open coded tracing: Annotate ftrace_graph_notrace_hash pointer with __rcu tracing: Annotate ftrace_graph_hash pointer with __rcu bootconfig: Only load bootconfig if "bootconfig" is on the kernel cmdline tracing: Use seq_buf for building dynevent_cmd string tracing: Remove useless code in dynevent_arg_pair_add() tracing: Remove check_arg() callbacks from dynevent args tracing: Consolidate some synth_event_trace code tracing: Fix now invalid var_ref_vals assumption in trace action tracing: Change trace_boot to use synth_event interface tracing: Move tracing selftests to bottom of menu tracing: Move mmio tracer config up with the other tracers tracing: Move tracing test module configs together tracing: Move all function tracing configs together tracing: Documentation for in-kernel synthetic event API ...
-
git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull io_uring updates from Jens Axboe: "Some later fixes for io_uring: - Small cleanup series from Pavel - Belt and suspenders build time check of sqe size and layout (Stefan) - Addition of ->show_fdinfo() on request of Jann Horn, to aid in understanding mapped personalities - eventfd recursion/deadlock fix, for both io_uring and aio - Fixup for send/recv handling - Fixup for double deferral of read/write request - Fix for potential double completion event for close request - Adjust fadvise advice async/inline behavior - Fix for shutdown hang with SQPOLL thread - Fix for potential use-after-free of fixed file table" * tag 'io_uring-5.6-2020-02-05' of git://git.kernel.dk/linux-block: io_uring: cleanup fixed file data table references io_uring: spin for sq thread to idle on shutdown aio: prevent potential eventfd recursion on poll io_uring: put the flag changing code in the same spot io_uring: iterate req cache backwards io_uring: punt even fadvise() WILLNEED to async context io_uring: fix sporadic double CQE entry for close io_uring: remove extra ->file check io_uring: don't map read/write iovec potentially twice io_uring: use the proper helpers for io_send/recv io_uring: prevent potential eventfd recursion on poll eventfd: track eventfd_signal() recursion depth io_uring: add BUILD_BUG_ON() to assert the layout of struct io_uring_sqe io_uring: add ->show_fdinfo() for the io_uring file descriptor
-
git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull more block updates from Jens Axboe: "Some later arrivals, but all fixes at this point: - bcache fix series (Coly) - Series of BFQ fixes (Paolo) - NVMe pull request from Keith with a few minor NVMe fixes - Various little tweaks" * tag 'block-5.6-2020-02-05' of git://git.kernel.dk/linux-block: (23 commits) nvmet: update AEN list and array at one place nvmet: Fix controller use after free nvmet: Fix error print message at nvmet_install_queue function brd: check and limit max_part par nvme-pci: remove nvmeq->tags nvmet: fix dsm failure when payload does not match sgl descriptor nvmet: Pass lockdep expression to RCU lists block, bfq: clarify the goal of bfq_split_bfqq() block, bfq: get a ref to a group when adding it to a service tree block, bfq: remove ifdefs from around gets/puts of bfq groups block, bfq: extend incomplete name of field on_st block, bfq: get extra ref to prevent a queue from being freed during a group move block, bfq: do not insert oom queue into position tree block, bfq: do not plug I/O for bfq_queues with no proc refs bcache: check return value of prio_read() bcache: fix incorrect data type usage in btree_flush_write() bcache: add readahead cache policy options via sysfs interface bcache: explicity type cast in bset_bkey_last() bcache: fix memory corruption in bch_cache_accounting_clear() xen/blkfront: limit allocated memory size to actual use case ...
-
git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull libata updates from Jens Axboe: - Add a Sandisk CF card to supported pata_pcmcia list (Christian) - Move pata_arasan_cf away from legacy API (Peter) - Ensure ahci DMA/ints are shut down on shutdown (Prabhakar) * tag 'libata-5.6-2020-02-05' of git://git.kernel.dk/linux-block: ata: pata_arasan_cf: Use dma_request_chan() instead dma_request_slave_channel() ata: ahci: Add shutdown to freeze hardware resources of ahci pata_pcmia: add SanDisk High (>8G) CF card to supported list
-
- 05 Feb, 2020 22 commits
-
-
Masami Hiramatsu authored
Show the number of bootconfig nodes on boot message. Link: http://lkml.kernel.org/r/158091062297.27924.9051634676068550285.stgit@devnote2Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Masami Hiramatsu authored
Show the number of bootconfig nodes when applying new bootconfig to initrd. Since there are limitations of bootconfig not only in its filesize, but also the number of nodes, the number should be shown when applying so that user can get the feeling of scale of current bootconfig. Link: http://lkml.kernel.org/r/158091061337.27924.10886706631693823982.stgit@devnote2Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Masami Hiramatsu authored
Add more error messages for following cases. - Exceeding max number of nodes - Config tree data is empty (e.g. comment only) - Config data is empty or exceeding max size - bootconfig is already initialized Link: http://lkml.kernel.org/r/158091060401.27924.9024818742827122764.stgit@devnote2Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Masami Hiramatsu authored
Use "bootconfig" (1 word) instead of "boot config" (2 words) in the boot message. Link: http://lkml.kernel.org/r/158091059459.27924.14414336187441539879.stgit@devnote2Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Steven Rostedt (VMware) authored
As function_graph tracer can run when RCU is not "watching", it can not be protected by synchronize_rcu() it requires running a task on each CPU before it can be freed. Calling schedule_on_each_cpu(ftrace_sync) needs to be used. Link: https://lore.kernel.org/r/20200205131110.GT2935@paulmck-ThinkPad-P72 Cc: stable@vger.kernel.org Fixes: b9b0c831 ("ftrace: Convert graph filter to use hash tables") Reported-by: "Paul E. McKenney" <paulmck@kernel.org> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Casey Schaufler authored
I am seeing ping failures to IPv6 linklocal addresses with Debian buster. Easiest example to reproduce is: $ ping -c1 -w1 ff02::1%eth1 connect: Invalid argument $ ping -c1 -w1 ff02::1%eth1 PING ff02::01%eth1(ff02::1%eth1) 56 data bytes 64 bytes from fe80::e0:f9ff:fe0c:37%eth1: icmp_seq=1 ttl=64 time=0.059 ms git bisect traced the failure to commit b9ef5513 ("smack: Check address length before reading address family") Arguably ping is being stupid since the buster version is not setting the address family properly (ping on stretch for example does): $ strace -e connect ping6 -c1 -w1 ff02::1%eth1 connect(5, {sa_family=AF_UNSPEC, sa_data="\4\1\0\0\0\0\377\2\0\0\0\0\0\0\0\0\0\0\0\0\0\1\3\0\0\0"}, 28) = -1 EINVAL (Invalid argument) but the command works fine on kernels prior to this commit, so this is breakage which goes against the Linux paradigm of "don't break userspace" Cc: stable@vger.kernel.org Reported-by: David Ahern <dsahern@gmail.com> Suggested-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> security/smack/smack_lsm.c | 41 +++++++++++++++++++---------------------- 1 file changed, 19 insertions(+), 22 deletions(-)
-
Steven Rostedt (VMware) authored
Because the function graph tracer can execute in sections where RCU is not "watching", the rcu_dereference_sched() for the has needs to be open coded. This is fine because the RCU "flavor" of the ftrace hash is protected by its own RCU handling (it does its own little synchronization on every CPU and does not rely on RCU sched). Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Amol Grover authored
Fix following instances of sparse error kernel/trace/ftrace.c:5667:29: error: incompatible types in comparison kernel/trace/ftrace.c:5813:21: error: incompatible types in comparison kernel/trace/ftrace.c:5868:36: error: incompatible types in comparison kernel/trace/ftrace.c:5870:25: error: incompatible types in comparison Use rcu_dereference_protected to dereference the newly annotated pointer. Link: http://lkml.kernel.org/r/20200205055701.30195-1-frextrite@gmail.comSigned-off-by: Amol Grover <frextrite@gmail.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Amol Grover authored
Fix following instances of sparse error kernel/trace/ftrace.c:5664:29: error: incompatible types in comparison kernel/trace/ftrace.c:5785:21: error: incompatible types in comparison kernel/trace/ftrace.c:5864:36: error: incompatible types in comparison kernel/trace/ftrace.c:5866:25: error: incompatible types in comparison Use rcu_dereference_protected to access the __rcu annotated pointer. Link: http://lkml.kernel.org/r/20200201072703.17330-1-frextrite@gmail.comReviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Amol Grover <frextrite@gmail.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Linus Torvalds authored
Merge tag 'pwm/for-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "Mostly cleanups and minor improvements with some new chip support for some drivers" * tag 'pwm/for-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (37 commits) pwm: Remove set but not set variable 'pwm' pwm: sun4i: Initialize variables before use pwm: stm32: Remove automatic output enable pwm: sun4i: Narrow scope of local variable pwm: bcm2835: Allow building for ARCH_BRCMSTB pwm: imx27: Eliminate error message for defer probe pwm: sun4i: Fix inconsistent IS_ERR and PTR_ERR pwm: sun4i: Move pwm_calculate() out of spin_lock() pwm: omap-dmtimer: Allow compiling with COMPILE_TEST pwm: omap-dmtimer: put_device() after of_find_device_by_node() pwm: omap-dmtimer: Simplify error handling pwm: omap-dmtimer: Remove PWM chip in .remove before making it unfunctional pwm: Implement tracing for .get_state() and .apply_state() pwm: rcar: Document inability to set duty_cycle = 0 pwm: rcar: Drop useless call to pwm_get_state() pwm: Fix minor Kconfig whitespace issues pwm: atmel: Implement .get_state() pwm: atmel: Use register accessors for channels pwm: atmel: Document known weaknesses of both hardware and software pwm: atmel: Replace loop in prescale calculation by ad-hoc calculation ...
-
git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds authored
Pull dmaengine fixes from Vinod Koul: "Fixes for: - Documentation build error fix - Fix dma_request_chan() error return - Remove unneeded conversion in idxd driver - Fix pointer check for dma_async_device_channel_register() - Fix slave-channel symlink cleanup" * tag 'dmaengine-fix-5.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: Cleanups for the slave <-> channel symlink support dmaengine: fix null ptr check for __dma_async_device_channel_register() dmaengine: idxd: fix boolconv.cocci warnings dmaengine: Fix return value for dma_request_chan() in case of failure dmaengine: doc: Properly indent metadata title
-
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull iommu updates from Joerg Roedel: - Allow compiling the ARM-SMMU drivers as modules. - Fixes and cleanups for the ARM-SMMU drivers and io-pgtable code collected by Will Deacon. The merge-commit (6855d1ba) has all the details. - Cleanup of the iommu_put_resv_regions() call-backs in various drivers. - AMD IOMMU driver cleanups. - Update for the x2APIC support in the AMD IOMMU driver. - Preparation patches for Intel VT-d nested mode support. - RMRR and identity domain handling fixes for the Intel VT-d driver. - More small fixes and cleanups. * tag 'iommu-updates-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (87 commits) iommu/amd: Remove the unnecessary assignment iommu/vt-d: Remove unnecessary WARN_ON_ONCE() iommu/vt-d: Unnecessary to handle default identity domain iommu/vt-d: Allow devices with RMRRs to use identity domain iommu/vt-d: Add RMRR base and end addresses sanity check iommu/vt-d: Mark firmware tainted if RMRR fails sanity check iommu/amd: Remove unused struct member iommu/amd: Replace two consecutive readl calls with one readq iommu/vt-d: Don't reject Host Bridge due to scope mismatch PCI/ATS: Add PASID stubs iommu/arm-smmu-v3: Return -EBUSY when trying to re-add a device iommu/arm-smmu-v3: Improve add_device() error handling iommu/arm-smmu-v3: Use WRITE_ONCE() when changing validity of an STE iommu/arm-smmu-v3: Add second level of context descriptor table iommu/arm-smmu-v3: Prepare for handling arm_smmu_write_ctx_desc() failure iommu/arm-smmu-v3: Propagate ssid_bits iommu/arm-smmu-v3: Add support for Substream IDs iommu/arm-smmu-v3: Add context descriptor tables allocators iommu/arm-smmu-v3: Prepare arm_smmu_s1_cfg for SSID support ACPI/IORT: Parse SSID property of named component node ...
-
git://git.kernel.org/pub/scm/linux/kernel/git/xen/tipLinus Torvalds authored
Pull xen updates from Juergen Gross: - fix a bug introduced in 5.5 in the Xen gntdev driver - fix the Xen balloon driver when running on ancient Xen versions - allow Xen stubdoms to control interrupt enable flags of passed-through PCI cards - release resources in Xen backends under memory pressure * tag 'for-linus-5.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/blkback: Consistently insert one empty line between functions xen/blkback: Remove unnecessary static variable name prefixes xen/blkback: Squeeze page pools if a memory pressure is detected xenbus/backend: Protect xenbus callback with lock xenbus/backend: Add memory pressure handler callback xen/gntdev: Do not use mm notifiers with autotranslating guests xen/balloon: Support xend-based toolstack take two xen-pciback: optionally allow interrupt enable flag writes
-
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds authored
Pull devicetree fixes from Rob Herring: - Fix incorrect $id paths in schemas - Two fixes for Intel LGM SoC binding schemas * tag 'devicetree-fixes-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: Fix paths in schema $id fields dt-bindings: PCI: intel: Fix dt_binding_check compilation failure dt-bindings: phy: Fix errors in intel,lgm-emmc-phy example
-
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull more s390 updates from Vasily Gorbik: "The second round of s390 fixes and features for 5.6: - Add KPROBES_ON_FTRACE support - Add EP11 AES secure keys support - PAES rework and prerequisites for paes-s390 ciphers selftests - Fix page table upgrade for hugetlbfs" * tag 's390-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pkey/zcrypt: Support EP11 AES secure keys s390/zcrypt: extend EP11 card and queue sysfs attributes s390/zcrypt: add new low level ep11 functions support file s390/zcrypt: ep11 structs rework, export zcrypt_send_ep11_cprb s390/zcrypt: enable card/domain autoselect on ep11 cprbs s390/crypto: enable clear key values for paes ciphers s390/pkey: Add support for key blob with clear key value s390/crypto: Rework on paes implementation s390: support KPROBES_ON_FTRACE s390/mm: fix dynamic pagetable upgrade for hugetlbfs
-
Steven Rostedt (VMware) authored
As the bootconfig is appended to the initrd it is not as easy to modify as the kernel command line. If there's some issue with the kernel, and the developer wants to boot a pristine kernel, it should not be needed to modify the initrd to remove the bootconfig for a single boot. As bootconfig is silently added (if the admin does not know where to look they may not know it's being loaded). It should be explicitly added to the kernel cmdline. The loading of the bootconfig is only done if "bootconfig" is on the kernel command line. This will let admins know that the kernel command line is extended. Note, after adding printk()s for when the size is too great or the checksum is wrong, exposed that the current method always looked for the boot config, and if this size and checksum matched, it would parse it (as if either is wrong a printk has been added to show this). It's better to only check this if the boot config is asked to be looked for. Link: https://lore.kernel.org/r/CAHk-=wjfjO+h6bQzrTf=YCZA53Y3EDyAs3Z4gEsT7icA3u_Psw@mail.gmail.comAcked-by: Masami Hiramatsu <mhiramat@kernel.org> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-
Rob Herring authored
The $id path checks were inadequately checking the path part of the $id value. With the check fixed, there's a number of errors that need to be fixed. Most of the errors are including 'bindings/' in the path which should not be as that is considered the root. Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Pengutronix Kernel Team <kernel@pengutronix.de> Cc: Fabio Estevam <festevam@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: "Nuno Sá" <nuno.sa@analog.com> Cc: Jean Delvare <jdelvare@suse.com> Cc: Stefan Popa <stefan.popa@analog.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Cc: Marcus Folkesson <marcus.folkesson@gmail.com> Cc: Kent Gustavsson <kent@minoris.se> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: linux-clk@vger.kernel.org Cc: linux-iio@vger.kernel.org Cc: linux-input@vger.kernel.org Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Rob Herring <robh@kernel.org>
-
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds authored
Pull parisc updates from Helge Deller: "A page table initialization cleanup from Mike Rapoport and regenerated defconfig files from Helge Deller" * 'parisc-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Regenerate parisc defconfigs parisc: map_pages(): cleanup page table initialization
-
git://github.com/kleikamp/linux-shaggyLinus Torvalds authored
Pull jfs update from David Kleikamp: "Trivial cleanup for jfs" * tag 'jfs-5.6' of git://github.com/kleikamp/linux-shaggy: jfs: remove unused MAXL2PAGES
-
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs recursive removal updates from Al Viro: "We have quite a few places where synthetic filesystems do an equivalent of 'rm -rf', with varying amounts of code duplication, wrong locking, etc. That really ought to be a library helper. Only debugfs (and very similar tracefs) are converted here - I have more conversions, but they'd never been in -next, so they'll have to wait" * 'work.recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: simple_recursive_removal(): kernel-side rm -rf for ramfs-style filesystems
-
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs timestamp updates from Al Viro: "More 64bit timestamp work" * 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: kernfs: don't bother with timestamp truncation fs: Do not overload update_time fs: Delete timespec64_trunc() fs: ubifs: Eliminate timespec64_trunc() usage fs: ceph: Delete timespec64_trunc() usage fs: cifs: Delete usage of timespec64_trunc fs: fat: Eliminate timespec64_trunc() usage utimes: Clamp the timestamps in notify_change()
-
Jens Axboe authored
syzbot reports a use-after-free in io_ring_file_ref_switch() when it tries to switch back to percpu mode. When we put the final reference to the table by calling percpu_ref_kill_and_confirm(), we don't want the zero reference to queue async work for flushing the potentially queued up items. We currently do a few flush_work(), but they merely paper around the issue, since the work item may not have been queued yet depending on the when the percpu-ref callback gets run. Coming into the file unregister, we know we have the ring quiesced. io_ring_file_ref_switch() can check for whether or not the ref is dying or not, and not queue anything async at that point. Once the ref has been confirmed killed, flush any potential items manually. Reported-by: syzbot+7caeaea49c2c8a591e3d@syzkaller.appspotmail.com Fixes: 05f3fb3c ("io_uring: avoid ring quiesce for fixed file set unregister and update") Signed-off-by: Jens Axboe <axboe@kernel.dk>
-
- 04 Feb, 2020 11 commits
-
-
Jens Axboe authored
As part of io_uring shutdown, we cancel work that is pending and won't necessarily complete on its own. That includes requests like poll commands and timeouts. If we're using SQPOLL for kernel side submission and we shutdown the ring immediately after queueing such work, we can race with the sqthread doing the submission. This means we may miss cancelling some work, which results in the io_uring shutdown hanging forever. Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
-
Dilip Kota authored
Remove <dt-bindings/clock/intel,lgm-clk.h> dependency as it is not present in the mainline tree. Use numeric value instead of LGM_GCLK_PCIE10 macro. Signed-off-by: Dilip Kota <eswara.kota@linux.intel.com> [robh: Also drop interrupt-parent from example] Signed-off-by: Rob Herring <robh@kernel.org>
-
Rob Herring authored
DT labels can't have '-' in them causing a compile failure in the example. Fixing that leads to more warnings: Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dts:23.13-33: Warning (reg_format): /example-0/chiptop@e0200000/emmc-phy@a8:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format' Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format' Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format' Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dts:21.33-26.13: Warning (avoid_default_addr_size): /example-0/chiptop@e0200000/emmc-phy@a8: Relying on default #address-cells value Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.example.dts:21.33-26.13: Warning (avoid_default_addr_size): /example-0/chiptop@e0200000/emmc-phy@a8: Relying on default #size-cells value Fixes: 5bc99910 ("dt-bindings: phy: intel-emmc-phy: Add YAML schema for LGM eMMC PHY") Cc: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com> Cc: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Rob Herring <robh@kernel.org>
-
git://git.infradead.org/nvmeJens Axboe authored
Pull NVMe fixes from Keith. * 'nvme-5.6' of git://git.infradead.org/nvme: nvmet: update AEN list and array at one place nvmet: Fix controller use after free nvmet: Fix error print message at nvmet_install_queue function nvme-pci: remove nvmeq->tags nvmet: fix dsm failure when payload does not match sgl descriptor nvmet: Pass lockdep expression to RCU lists
-
Daniel Wagner authored
All async events are enqueued via nvmet_add_async_event() which updates the ctrl->async_event_cmds[] array and additionally an struct nvmet_async_event is added to the ctrl->async_events list. Under normal operations the nvmet_async_event_work() updates again the ctrl->async_event_cmds and removes the corresponding struct nvmet_async_event from the list again. Though nvmet_sq_destroy() could be called which calls nvmet_async_events_free() which only updates the ctrl->async_event_cmds[] array. Add new functions nvmet_async_events_process() and nvmet_async_events_free() to process async events, update an array and the list. When we destroy submission queue after clearing the aen present on the ctrl->async list we also loop over ctrl->async_event_cmds[] for any requests posted by the host for which we don't have the AEN in the ctrl->async_events list by calling nvmet_async_event_process() and nvmet_async_events_free(). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Daniel Wagner <dwagner@suse.de> [chaitanya.kulkarni@wdc.com * Loop over and clear out outstanding requests * Update changelog ] Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
-
Israel Rukshin authored
After nvmet_install_queue() sets sq->ctrl calling to nvmet_sq_destroy() reduces the controller refcount. In case nvmet_install_queue() fails, calling to nvmet_ctrl_put() is done twice (at nvmet_sq_destroy and nvmet_execute_io_connect/nvmet_execute_admin_connect) instead of once for the queue which leads to use after free of the controller. Fix this by set NULL at sq->ctrl in case of a failure at nvmet_install_queue(). The bug leads to the following Call Trace: [65857.994862] refcount_t: underflow; use-after-free. [65858.108304] Workqueue: events nvmet_rdma_release_queue_work [nvmet_rdma] [65858.115557] RIP: 0010:refcount_warn_saturate+0xe5/0xf0 [65858.208141] Call Trace: [65858.211203] nvmet_sq_destroy+0xe1/0xf0 [nvmet] [65858.216383] nvmet_rdma_release_queue_work+0x37/0xf0 [nvmet_rdma] [65858.223117] process_one_work+0x167/0x370 [65858.227776] worker_thread+0x49/0x3e0 [65858.232089] kthread+0xf5/0x130 [65858.235895] ? max_active_store+0x80/0x80 [65858.240504] ? kthread_bind+0x10/0x10 [65858.244832] ret_from_fork+0x1f/0x30 [65858.249074] ---[ end trace f82d59250b54beb7 ]--- Fixes: bb1cc747 ("nvmet: implement valid sqhd values in completions") Fixes: 1672ddb8 ("nvmet: Add install_queue callout") Signed-off-by: Israel Rukshin <israelr@mellanox.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
-
Israel Rukshin authored
Place the arguments in the correct order. Fixes: 1672ddb8 ("nvmet: Add install_queue callout") Signed-off-by: Israel Rukshin <israelr@mellanox.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>
-
Zhiqiang Liu authored
In brd_init func, rd_nr num of brd_device are firstly allocated and add in brd_devices, then brd_devices are traversed to add each brd_device by calling add_disk func. When allocating brd_device, the disk->first_minor is set to i * max_part, if rd_nr * max_part is larger than MINORMASK, two different brd_device may have the same devt, then only one of them can be successfully added. when rmmod brd.ko, it will cause oops when calling brd_exit. Follow those steps: # modprobe brd rd_nr=3 rd_size=102400 max_part=1048576 # rmmod brd then, the oops will appear. Oops log: [ 726.613722] Call trace: [ 726.614175] kernfs_find_ns+0x24/0x130 [ 726.614852] kernfs_find_and_get_ns+0x44/0x68 [ 726.615749] sysfs_remove_group+0x38/0xb0 [ 726.616520] blk_trace_remove_sysfs+0x1c/0x28 [ 726.617320] blk_unregister_queue+0x98/0x100 [ 726.618105] del_gendisk+0x144/0x2b8 [ 726.618759] brd_exit+0x68/0x560 [brd] [ 726.619501] __arm64_sys_delete_module+0x19c/0x2a0 [ 726.620384] el0_svc_common+0x78/0x130 [ 726.621057] el0_svc_handler+0x38/0x78 [ 726.621738] el0_svc+0x8/0xc [ 726.622259] Code: aa0203f6 aa0103f7 aa1e03e0 d503201f (7940e260) Here, we add brd_check_and_reset_par func to check and limit max_part par. -- V5->V6: - remove useless code V4->V5:(suggested by Ming Lei) - make sure max_part is not larger than DISK_MAX_PARTS V3->V4:(suggested by Ming Lei) - remove useless change - add one limit of max_part V2->V3: (suggested by Ming Lei) - clear .minors when running out of consecutive minor space in brd_alloc - remove limit of rd_nr V1->V2: - add more checks in brd_check_par_valid as suggested by Ming Lei. Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com> Reviewed-by: Bob Liu <bob.liu@oracle.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Use after free in rxrpc_put_local(), from David Howells. 2) Fix 64-bit division error in mlxsw, from Nathan Chancellor. 3) Make sure we clear various bits of TCP state in response to tcp_disconnect(). From Eric Dumazet. 4) Fix netlink attribute policy in cls_rsvp, from Eric Dumazet. 5) txtimer must be deleted in stmmac suspend(), from Nicolin Chen. 6) Fix TC queue mapping in bnxt_en driver, from Michael Chan. 7) Various netdevsim fixes from Taehee Yoo (use of uninitialized data, snapshot panics, stack out of bounds, etc.) 8) cls_tcindex changes hash table size after allocating the table, fix from Cong Wang. 9) Fix regression in the enforcement of session ID uniqueness in l2tp. We only have to enforce uniqueness for IP based tunnels not UDP ones. From Ridge Kennedy. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits) gtp: use __GFP_NOWARN to avoid memalloc warning l2tp: Allow duplicate session creation with UDP r8152: Add MAC passthrough support to new device net_sched: fix an OOB access in cls_tcindex qed: Remove set but not used variable 'p_link' tc-testing: add missing 'nsPlugin' to basic.json tc-testing: fix eBPF tests failure on linux fresh clones net: hsr: fix possible NULL deref in hsr_handle_frame() netdevsim: remove unused sdev code netdevsim: use __GFP_NOWARN to avoid memalloc warning netdevsim: use IS_ERR instead of IS_ERR_OR_NULL for debugfs netdevsim: fix stack-out-of-bounds in nsim_dev_debugfs_init() netdevsim: fix panic in nsim_dev_take_snapshot_write() netdevsim: disable devlink reload when resources are being used netdevsim: fix using uninitialized resources bnxt_en: Fix TC queue mapping. bnxt_en: Fix logic that disables Bus Master during firmware reset. bnxt_en: Fix RDMA driver failure with SRIOV after firmware reset. bnxt_en: Refactor logic to re-enable SRIOV after firmware reset detected. net: stmmac: Delete txtimer in suspend() ...
-
git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM updates from Russell King: - decompressor updates - prevention of out-of-bounds access while stacktracing - fix a section mismatch warning with free_memmap() - make kexec depend on MMU to avoid some build errors - remove swapops stubs * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8954/1: NOMMU: remove stubs for swapops ARM: 8952/1: Disable kmemleak on XIP kernels ARM: 8951/1: Fix Kexec compilation issue. ARM: 8949/1: mm: mark free_memmap as __init ARM: 8948/1: Prevent OOB access in stacktrace ARM: 8945/1: decompressor: use CONFIG option instead of cc-option ARM: 8942/1: Revert "8857/1: efi: enable CP15 DMB instructions before cleaning the cache" ARM: 8941/1: decompressor: enable CP15 barrier instructions in v7 cache setup code
-
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: "A pretty small batch for us, and apologies for it being a bit late, I wanted to sneak Christophe's user_access_begin() series in. Summary: - Implement user_access_begin() and friends for our platforms that support controlling kernel access to userspace. - Enable CONFIG_VMAP_STACK on 32-bit Book3S and 8xx. - Some tweaks to our pseries IOMMU code to allow SVMs ("secure" virtual machines) to use the IOMMU. - Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 32-bit VDSO, and some other improvements. - A series to use the PCI hotplug framework to control opencapi card's so that they can be reset and re-read after flashing a new FPGA image. As well as other minor fixes and improvements as usual. Thanks to: Alastair D'Silva, Alexandre Ghiti, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Bai Yingjie, Chen Zhou, Christophe Leroy, Frederic Barrat, Greg Kurz, Jason A. Donenfeld, Joel Stanley, Jordan Niethe, Julia Lawall, Krzysztof Kozlowski, Laurent Dufour, Laurentiu Tudor, Linus Walleij, Michael Bringmann, Nathan Chancellor, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Peter Ujfalusi, Pingfan Liu, Ram Pai, Randy Dunlap, Russell Currey, Sam Bobroff, Sebastian Andrzej Siewior, Shawn Anastasio, Stephen Rothwell, Steve Best, Sukadev Bhattiprolu, Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain" * tag 'powerpc-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (131 commits) powerpc: configs: Cleanup old Kconfig options powerpc/configs/skiroot: Enable some more hardening options powerpc/configs/skiroot: Disable xmon default & enable reboot on panic powerpc/configs/skiroot: Enable security features powerpc/configs/skiroot: Update for symbol movement only powerpc/configs/skiroot: Drop default n CONFIG_CRYPTO_ECHAINIV powerpc/configs/skiroot: Drop HID_LOGITECH powerpc/configs: Drop NET_VENDOR_HP which moved to staging powerpc/configs: NET_CADENCE became NET_VENDOR_CADENCE powerpc/configs: Drop CONFIG_QLGE which moved to staging powerpc: Do not consider weak unresolved symbol relocations as bad powerpc/32s: Fix kasan_early_hash_table() for CONFIG_VMAP_STACK powerpc: indent to improve Kconfig readability powerpc: Provide initial documentation for PAPR hcalls powerpc: Implement user_access_save() and user_access_restore() powerpc: Implement user_access_begin and friends powerpc/32s: Prepare prevent_user_access() for user_access_end() powerpc/32s: Drop NULL addr verification powerpc/kuap: Fix set direction in allow/prevent_user_access() powerpc/32s: Fix bad_kuap_fault() ...
-