- Jul 01, 2020
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Greg Kroah-Hartman authored
Changes in 4.4.229 s390: fix syscall_get_error for compat processes clk: sunxi: Fix incorrect usage of round_down() i2c: piix4: Detect secondary SMBus controller on AMD AM4 chipsets clk: qcom: msm8916: Fix the address location of pll->config_reg ALSA: isa/wavefront: prevent out of bounds write in ioctl scsi: qla2xxx: Fix issue with adapter's stopping state i2c: pxa: clear all master action bits in i2c_pxa_stop_message() usblp: poison URBs upon disconnect ps3disk: use the default segment boundary vfio/pci: fix memory leaks in alloc_perm_bits() mfd: wm8994: Fix driver operation if loaded as modules scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event nfsd: Fix svc_xprt refcnt leak when setup callback client failed powerpc/crashkernel: Take "mem=" option into account yam: fix possible memory leak in yam_init_driver mksysmap: Fix the mismatch of '.L' symbols in System.map scsi: sr: Fix sr_probe() missing deallocate of device minor scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM ALSA: usb-audio: Improve frames size computation s390/qdio: put thinint indicator after early error tty: hvc: Fix data abort due to race in hvc_open staging: sm750fb: add missing case while setting FB_VISUAL i2c: pxa: fix i2c_pxa_scream_blue_murder() debug output serial: amba-pl011: Make sure we initialize the port.lock spinlock drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish PCI/ASPM: Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges power: supply: smb347-charger: IRQSTAT_D is volatile scsi: mpt3sas: Fix double free warnings dlm: remove BUG() before panic() clk: ti: composite: fix memory leak tty: n_gsm: Fix SOF skipping tty: n_gsm: Fix waking up upper tty layer when room available powerpc/pseries/ras: Fix FWNMI_VALID off by one powerpc/ps3: Fix kexec shutdown hang vfio-pci: Mask cap zero usb/ohci-platform: Fix a warning when hibernating USB: host: ehci-mxc: Add error handling in ehci_mxc_drv_probe() tty: n_gsm: Fix bogus i++ in gsm_data_kick clk: samsung: exynos5433: Add IGNORE_UNUSED flag to sclk_i2s1 watchdog: da9062: No need to ping manually before setting timeout usb: dwc2: gadget: move gadget resume after the core is in L0 state USB: gadget: udc: s3c2410_udc: Remove pointless NULL check in s3c2410_udc_nuke usb: gadget: lpc32xx_udc: don't dereference ep pointer before null check usb: gadget: fix potential double-free in m66592_probe. net: sunrpc: Fix off-by-one issues in 'rpc_ntop6' ASoC: fsl_asrc_dma: Fix dma_chan leak when config DMA channel failed openrisc: Fix issue with argument clobbering for clone/fork gfs2: Allow lock_nolock mount to specify jid=X scsi: iscsi: Fix reference count leak in iscsi_boot_create_kobj lib/zlib: remove outdated and incorrect pre-increment optimization include/linux/bitops.h: avoid clang shift-count-overflow warnings elfnote: mark all .note sections SHF_ALLOC selftests/net: in timestamping, strncpy needs to preserve null byte scsi: acornscsi: Fix an error handling path in acornscsi_probe() usb/xhci-plat: Set PM runtime as active on resume usb/ehci-platform: Set PM runtime as active on resume perf report: Fix NULL pointer dereference in hists__fprintf_nr_sample_events() bcache: fix potential deadlock problem in btree_gc_coalesce block: Fix use-after-free in blkdev_get() libata: Use per port sync for detach drm: encoder_slave: fix refcouting error for modules drm/dp_mst: Reformat drm_dp_check_act_status() a bit drm/qxl: Use correct notify port address when creating cursor ring selinux: fix double free ext4: fix partial cluster initialization when splitting extent drm/dp_mst: Increase ACT retry timeout to 3s sparc64: fix misuses of access_process_vm() in genregs32_[sg]et() block: nr_sects_write(): Disable preemption on seqcount write crypto: algboss - don't wait during notifier callback kprobes: Fix to protect kick_kprobe_optimizer() by kprobe_mutex powerpc/kprobes: Fixes for kprobe_lookup_name() on BE x86/kprobes: Avoid kretprobe recursion bug kretprobe: Prevent triggering kretprobe from within kprobe_flush_task e1000e: Do not wake up the system via WOL if device wakeup is disabled sched/rt, net: Use CONFIG_PREEMPTION.patch net: core: device_rename: Use rwsem instead of a seqcount net: Revert "pkt_sched: fq: use proper locking in fq_dump_stats()" scsi: scsi_devinfo: handle non-terminated strings l2tp: Allow duplicate session creation with UDP net: sched: export __netdev_watchdog_up() fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()" net: fix memleak in register_netdevice() net: usb: ax88179_178a: fix packet alignment padding tg3: driver sleeps indefinitely when EEH errors exceed eeh_max_freezes ip_tunnel: fix use-after-free in ip_tunnel_lookup() tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT ip6_gre: fix use-after-free in ip6gre_tunnel_lookup() tcp: grow window for OOO packets only for SACK flows sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket net: Fix the arp error in some cases net: Do not clear the sock TX queue in sk_set_socket() net: core: reduce recursion limit value mld: fix memory leak in ipv6_mc_destroy_dev() USB: ohci-sm501: Add missed iounmap() in remove usb: dwc2: Postponed gadget registration to the udc class driver usb: add USB_QUIRK_DELAY_INIT for Logitech C922 PCI: Disable MSI for HiSilicon Hip06/Hip07 Root Ports USB: ehci: reopen solution for Synopsys HC bug usb: host: ehci-exynos: Fix error check in exynos_ehci_probe() ALSA: usb-audio: add quirk for Denon DCD-1500RE xhci: Fix incorrect EP_STATE_MASK xhci: Fix enumeration issue when setting max packet size for FS devices. cdc-acm: Add DISABLE_ECHO quirk for Microchip/SMSC chip ALSA: usb-audio: uac1: Invalidate ctl on interrupt ALSA: usb-audio: allow clock source validity interrupts ALSA: usb-audio: Clean up mixer element list traverse ALSA: usb-audio: Fix OOB access of mixer element list xhci: Poll for U0 after disabling USB2 LPM cifs/smb3: Fix data inconsistent when punch hole cifs/smb3: Fix data inconsistent when zero file range efi/esrt: Fix reference count leak in esre_create_sysfs_entry. RDMA/mad: Fix possible memory leak in ib_mad_post_receive_mads() ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram() usb: gadget: udc: Potential Oops in error handling code netfilter: ipset: fix unaligned atomic access sched/core: Fix PI boosting between RT and DEADLINE tasks net: alx: fix race condition in alx_remove kbuild: improve cc-option to clean up all temporary files blktrace: break out of blktrace setup on concurrent calls ACPI: sysfs: Fix pm_profile_attr type KVM: X86: Fix MSR range of APIC registers in X2APIC mode mm/slab: use memzero_explicit() in kzfree() ocfs2: load global_inode_alloc ocfs2: fix value of OCFS2_INVALID_SLOT ocfs2: fix panic on nfs server over ocfs2 arm64: perf: Report the PC value in REGS_ABI_32 mode tracing: Fix event trigger to accept redundant spaces drm/radeon: fix fb_div check in ni_init_smc_spll_table() sunrpc: fixed rollback in rpc_gssd_dummy_populate() SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment() pNFS/flexfiles: Fix list corruption if the mirror count changes NFSv4 fix CLOSE not waiting for direct IO compeletion PCI: Disable MSI for HiSilicon Hip06/Hip07 only in Root Port mode ALSA: usb-audio: Fix invalid NULL check in snd_emuusb_set_samplerate() Linux 4.4.229 Signed-off-by:Greg Kroah-Hartman <gregkh@google.com> Change-Id: I0b8ca375236d216ff88d90e11ad5294fc3979f21
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- Jun 30, 2020
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Sasha Levin authored
Signed-off-by:Sasha Levin <sashal@kernel.org>
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Takashi Iwai authored
commit 6de3c9e3 upstream. The quirk function snd_emuusb_set_samplerate() has a NULL check for the mixer element, but this is useless in the current code. It used to be a check against mixer->id_elems[unitid] but it was changed later to the value after mixer_eleme_list_to_info() which is always non-NULL due to the container_of() usage. This patch fixes the check before the conversion. While we're at it, correct a typo in the comment in the function, too. Fixes: 8c558076 ("ALSA: usb-audio: Clean up mixer element list traverse") Cc: <stable@vger.kernel.org> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Dongdong Liu authored
commit deb86999 upstream. HiSilicon Hip06/Hip07 can operate as either a Root Port or an Endpoint. It always advertises an MSI capability, but it can only generate MSIs when in Endpoint mode. The device has the same Vendor and Device IDs in both modes, so check the Class Code and disable MSI only when operating as a Root Port. [bhelgaas: changelog] Fixes: 72f2ff0d ("PCI: Disable MSI for HiSilicon Hip06/Hip07 Root Ports") Signed-off-by:
Dongdong Liu <liudongdong3@huawei.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Reviewed-by:
Zhou Wang <wangzhou1@hisilicon.com> Cc: stable@vger.kernel.org # v4.11+ Signed-off-by:
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Olga Kornievskaia authored
commit d03727b2 upstream. Figuring out the root case for the REMOVE/CLOSE race and suggesting the solution was done by Neil Brown. Currently what happens is that direct IO calls hold a reference on the open context which is decremented as an asynchronous task in the nfs_direct_complete(). Before reference is decremented, control is returned to the application which is free to close the file. When close is being processed, it decrements its reference on the open_context but since directIO still holds one, it doesn't sent a close on the wire. It returns control to the application which is free to do other operations. For instance, it can delete a file. Direct IO is finally releasing its reference and triggering an asynchronous close. Which races with the REMOVE. On the server, REMOVE can be processed before the CLOSE, failing the REMOVE with EACCES as the file is still opened. Signed-off-by:
Olga Kornievskaia <kolga@netapp.com> Suggested-by:
Neil Brown <neilb@suse.com> CC: stable@vger.kernel.org Signed-off-by:
Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by:
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Trond Myklebust authored
commit 8b040137 upstream. If the mirror count changes in the new layout we pick up inside ff_layout_pg_init_write(), then we can end up adding the request to the wrong mirror and corrupting the mirror->pg_list. Fixes: d600ad1f ("NFS41: pop some layoutget errors to application") Cc: stable@vger.kernel.org Signed-off-by:
Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by:
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Chuck Lever authored
commit 89a3c9f5 upstream. @subbuf is an output parameter of xdr_buf_subsegment(). A survey of call sites shows that @subbuf is always uninitialized before xdr_buf_segment() is invoked by callers. There are some execution paths through xdr_buf_subsegment() that do not set all of the fields in @subbuf, leaving some pointer fields containing garbage addresses. Subsequent processing of that buffer then results in a page fault. Signed-off-by:
Chuck Lever <chuck.lever@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Vasily Averin authored
commit b7ade381 upstream. __rpc_depopulate(gssd_dentry) was lost on error path cc: stable@vger.kernel.org Fixes: commit 4b9a445e ("sunrpc: create a new dummy pipe for gssd to hold open") Signed-off-by:
Vasily Averin <vvs@virtuozzo.com> Reviewed-by:
Jeff Layton <jlayton@redhat.com> Signed-off-by:
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Denis Efremov authored
commit 35f760b4 upstream. clk_s is checked twice in a row in ni_init_smc_spll_table(). fb_div should be checked instead. Fixes: 69e0b57a ("drm/radeon/kms: add dpm support for cayman (v5)") Cc: stable@vger.kernel.org Signed-off-by:
Denis Efremov <efremov@linux.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Masami Hiramatsu authored
commit 6784bead upstream. Fix the event trigger to accept redundant spaces in the trigger input. For example, these return -EINVAL echo " traceon" > events/ftrace/print/trigger echo "traceon if common_pid == 0" > events/ftrace/print/trigger echo "disable_event:kmem:kmalloc " > events/ftrace/print/trigger But these are hard to find what is wrong. To fix this issue, use skip_spaces() to remove spaces in front of actual tokens, and set NULL if there is no token. Link: http://lkml.kernel.org/r/159262476352.185015.5261566783045364186.stgit@devnote2 Cc: Tom Zanussi <zanussi@kernel.org> Cc: stable@vger.kernel.org Fixes: 85f2b082 ("tracing: Add basic event trigger framework") Reviewed-by:
Tom Zanussi <zanussi@kernel.org> Signed-off-by:
Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by:
Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by:
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Jiping Ma authored
commit 8dfe804a upstream. A 32-bit perf querying the registers of a compat task using REGS_ABI_32 will receive zeroes from w15, when it expects to find the PC. Return the PC value for register dwarf register 15 when returning register values for a compat task to perf. Cc: <stable@vger.kernel.org> Acked-by:
Mark Rutland <mark.rutland@arm.com> Signed-off-by:
Jiping Ma <jiping.ma2@windriver.com> Link: https://lore.kernel.org/r/1589165527-188401-1-git-send-email-jiping.ma2@windriver.com [will: Shuffled code and added a comment] Signed-off-by:
Will Deacon <will@kernel.org> Signed-off-by:
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Junxiao Bi authored
commit e5a15e17 upstream. The following kernel panic was captured when running nfs server over ocfs2, at that time ocfs2_test_inode_bit() was checking whether one inode locating at "blkno" 5 was valid, that is ocfs2 root inode, its "suballoc_slot" was OCFS2_INVALID_SLOT(65535) and it was allocted from //global_inode_alloc, but here it wrongly assumed that it was got from per slot inode alloctor which would cause array overflow and trigger kernel panic. BUG: unable to handle kernel paging request at 0000000000001088 IP: [<ffffffff816f6898>] _raw_spin_lock+0x18/0xf0 PGD 1e06ba067 PUD 1e9e7d067 PMD 0 Oops: 0002 [#1] SMP CPU: 6 PID: 24873 Comm: nfsd Not tainted 4.1.12-124.36.1.el6uek.x86_64 #2 Hardware name: Huawei CH121 V3/IT11SGCA1, BIOS 3.87 02/02/2018 RIP: _raw_spin_lock+0x18/0xf0 RSP: e02b:ffff88005ae97908 EFLAGS: 00010206 RAX: ffff88005ae98000 RBX: 0000000000001088 RCX: 0000000000000000 RDX: 0000000000020000 RSI: 0000000000000009 RDI: 0000000000001088 RBP: ffff88005ae97928 R08: 0000000000000000 R09: ffff880212878e00 R10: 0000000000007ff0 R11: 0000000000000000 R12: 0000000000001088 R13: ffff8800063c0aa8 R14: ffff8800650c27d0 R15: 000000000000ffff FS: 0000000000000000(0000) GS:ffff880218180000(0000) knlGS:ffff880218180000 CS: e033 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000001088 CR3: 00000002033d0000 CR4: 0000000000042660 Call Trace: igrab+0x1e/0x60 ocfs2_get_system_file_inode+0x63/0x3a0 [ocfs2] ocfs2_test_inode_bit+0x328/0xa00 [ocfs2] ocfs2_get_parent+0xba/0x3e0 [ocfs2] reconnect_path+0xb5/0x300 exportfs_decode_fh+0xf6/0x2b0 fh_verify+0x350/0x660 [nfsd] nfsd4_putfh+0x4d/0x60 [nfsd] nfsd4_proc_compound+0x3d3/0x6f0 [nfsd] nfsd_dispatch+0xe0/0x290 [nfsd] svc_process_common+0x412/0x6a0 [sunrpc] svc_process+0x123/0x210 [sunrpc] nfsd+0xff/0x170 [nfsd] kthread+0xcb/0xf0 ret_from_fork+0x61/0x90 Code: 83 c2 02 0f b7 f2 e8 18 dc 91 ff 66 90 eb bf 0f 1f 40 00 55 48 89 e5 41 56 41 55 41 54 53 0f 1f 44 00 00 48 89 fb ba 00 00 02 00 <f0> 0f c1 17 89 d0 45 31 e4 45 31 ed c1 e8 10 66 39 d0 41 89 c6 RIP _raw_spin_lock+0x18/0xf0 CR2: 0000000000001088 ---[ end trace 7264463cd1aac8f9 ]--- Kernel panic - not syncing: Fatal exception Link: http://lkml.kernel.org/r/20200616183829.87211-4-junxiao.bi@oracle.com Signed-off-by:
Junxiao Bi <junxiao.bi@oracle.com> Reviewed-by:
Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Jun Piao <piaojun@huawei.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: <stable@vger.kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Junxiao Bi authored
commit 9277f833 upstream. In the ocfs2 disk layout, slot number is 16 bits, but in ocfs2 implementation, slot number is 32 bits. Usually this will not cause any issue, because slot number is converted from u16 to u32, but OCFS2_INVALID_SLOT was defined as -1, when an invalid slot number from disk was obtained, its value was (u16)-1, and it was converted to u32. Then the following checking in get_local_system_inode will be always skipped: static struct inode **get_local_system_inode(struct ocfs2_super *osb, int type, u32 slot) { BUG_ON(slot == OCFS2_INVALID_SLOT); ... } Link: http://lkml.kernel.org/r/20200616183829.87211-5-junxiao.bi@oracle.com Signed-off-by:
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Junxiao Bi authored
commit 7569d3c7 upstream. Set global_inode_alloc as OCFS2_FIRST_ONLINE_SYSTEM_INODE, that will make it load during mount. It can be used to test whether some global/system inodes are valid. One use case is that nfsd will test whether root inode is valid. Link: http://lkml.kernel.org/r/20200616183829.87211-3-junxiao.bi@oracle.com Signed-off-by:
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Waiman Long authored
commit 8982ae52 upstream. The kzfree() function is normally used to clear some sensitive information, like encryption keys, in the buffer before freeing it back to the pool. Memset() is currently used for buffer clearing. However unlikely, there is still a non-zero probability that the compiler may choose to optimize away the memory clearing especially if LTO is being used in the future. To make sure that this optimization will never happen, memzero_explicit(), which is introduced in v3.18, is now used in kzfree() to future-proof it. Link: http://lkml.kernel.org/r/20200616154311.12314-2-longman@redhat.com Fixes: 3ef0e5ba ("slab: introduce kzfree()") Signed-off-by:
Waiman Long <longman@redhat.com> Acked-by:
Michal Hocko <mhocko@suse.com> Cc: David Howells <dhowells@redhat.com> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Cc: James Morris <jmorris@namei.org> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Joe Perches <joe@perches.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: "Jason A . Donenfeld" <Jason@zx2c4.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Xiaoyao Li authored
commit bf10bd0b upstream. Only MSR address range 0x800 through 0x8ff is architecturally reserved and dedicated for accessing APIC registers in x2APIC mode. Fixes: 0105d1a5 ("KVM: x2apic interface to lapic") Signed-off-by:
Xiaoyao Li <xiaoyao.li@intel.com> Message-Id: <20200616073307.16440-1-xiaoyao.li@intel.com> Cc: stable@vger.kernel.org Reviewed-by:
Sean Christopherson <sean.j.christopherson@intel.com> Reviewed-by:
Jim Mattson <jmattson@google.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
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Nathan Chancellor authored
commit e6d701dc upstream. When running a kernel with Clang's Control Flow Integrity implemented, there is a violation that happens when accessing /sys/firmware/acpi/pm_profile: $ cat /sys/firmware/acpi/pm_profile 0 $ dmesg ... [ 17.352564] ------------[ cut here ]------------ [ 17.352568] CFI failure (target: acpi_show_profile+0x0/0x8): [ 17.352572] WARNING: CPU: 3 PID: 497 at kernel/cfi.c:29 __cfi_check_fail+0x33/0x40 [ 17.352573] Modules linked in: [ 17.352575] CPU: 3 PID: 497 Comm: cat Tainted: G W 5.7.0-microsoft-standard+ #1 [ 17.352576] RIP: 0010:__cfi_check_fail+0x33/0x40 [ 17.352577] Code: 48 c7 c7 50 b3 85 84 48 c7 c6 50 0a 4e 84 e8 a4 d8 60 00 85 c0 75 02 5b c3 48 c7 c7 dc 5e 49 84 48 89 de 31 c0 e8 7d 06 eb ff <0f> 0b 5b c3 00 00 cc cc 00 00 cc cc 00 85 f6 74 25 41 b9 ea ff ff [ 17.352577] RSP: 0018:ffffaa6dc3c53d30 EFLAGS: 00010246 [ 17.352578] RAX: 331267e0c06cee00 RBX: ffffffff83d85890 RCX: ffffffff8483a6f8 [ 17.352579] RDX: ffff9cceabbb37c0 RSI: 0000000000000082 RDI: ffffffff84bb9e1c [ 17.352579] RBP: ffffffff845b2bc8 R08: 0000000000000001 R09: ffff9cceabbba200 [ 17.352579] R10: 000000000000019d R11: 0000000000000000 R12: ffff9cc947766f00 [ 17.352580] R13: ffffffff83d6bd50 R14: ffff9ccc6fa80000 R15: ffffffff845bd328 [ 17.352582] FS: 00007fdbc8d13580(0000) GS:ffff9cce91ac0000(0000) knlGS:0000000000000000 [ 17.352582] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 17.352583] CR2: 00007fdbc858e000 CR3: 00000005174d0000 CR4: 0000000000340ea0 [ 17.352584] Call Trace: [ 17.352586] ? rev_id_show+0x8/0x8 [ 17.352587] ? __cfi_check+0x45bac/0x4b640 [ 17.352589] ? kobj_attr_show+0x73/0x80 [ 17.352590] ? sysfs_kf_seq_show+0xc1/0x140 [ 17.352592] ? ext4_seq_options_show.cfi_jt+0x8/0x8 [ 17.352593] ? seq_read+0x180/0x600 [ 17.352595] ? sysfs_create_file_ns.cfi_jt+0x10/0x10 [ 17.352596] ? tlbflush_read_file+0x8/0x8 [ 17.352597] ? __vfs_read+0x6b/0x220 [ 17.352598] ? handle_mm_fault+0xa23/0x11b0 [ 17.352599] ? vfs_read+0xa2/0x130 [ 17.352599] ? ksys_read+0x6a/0xd0 [ 17.352601] ? __do_sys_getpgrp+0x8/0x8 [ 17.352602] ? do_syscall_64+0x72/0x120 [ 17.352603] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 17.352604] ---[ end trace 7b1fa81dc897e419 ]--- When /sys/firmware/acpi/pm_profile is read, sysfs_kf_seq_show is called, which in turn calls kobj_attr_show, which gets the ->show callback member by calling container_of on attr (casting it to struct kobj_attribute) then calls it. There is a CFI violation because pm_profile_attr is of type struct device_attribute but kobj_attr_show calls ->show expecting it to be from struct kobj_attribute. CFI checking ensures that function pointer types match when doing indirect calls. Fix pm_profile_attr to be defined in terms of kobj_attribute so there is no violation or mismatch. Fixes: 362b6460 ("ACPI: Export FADT pm_profile integer value to userspace") Link: https://github.com/ClangBuiltLinux/linux/issues/1051 Reported-by:
yuu ichii <byahu140@heisei.be> Signed-off-by:
Nathan Chancellor <natechancellor@gmail.com> Cc: 3.10+ <stable@vger.kernel.org> # 3.10+ Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
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Luis Chamberlain authored
[ Upstream commit 1b0b2836 ] We use one blktrace per request_queue, that means one per the entire disk. So we cannot run one blktrace on say /dev/vda and then /dev/vda1, or just two calls on /dev/vda. We check for concurrent setup only at the very end of the blktrace setup though. If we try to run two concurrent blktraces on the same block device the second one will fail, and the first one seems to go on. However when one tries to kill the first one one will see things like this: The kernel will show these: ``` debugfs: File 'dropped' in directory 'nvme1n1' already present! debugfs: File 'msg' in directory 'nvme1n1' already present! debugfs: File 'trace0' in directory 'nvme1n1' already present! `` And userspace just sees this error message for the second call: ``` blktrace /dev/nvme1n1 BLKTRACESETUP(2) /dev/nvme1n1 failed: 5/Input/output error ``` The first userspace process #1 will also claim that the files were taken underneath their nose as well. The files are taken away form the first process given that when the second blktrace fails, it will follow up with a BLKTRACESTOP and BLKTRACETEARDOWN. This means that even if go-happy process #1 is waiting for blktrace data, we *have* been asked to take teardown the blktrace. This can easily be reproduced with break-blktrace [0] run_0005.sh test. Just break out early if we know we're already going to fail, this will prevent trying to create the files all over again, which we know still exist. [0] https://github.com/mcgrof/break-blktrace Signed-off-by:
Luis Chamberlain <mcgrof@kernel.org> Signed-off-by:
Jan Kara <jack@suse.cz> Reviewed-by:
Bart Van Assche <bvanassche@acm.org> Reviewed-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
Jens Axboe <axboe@kernel.dk> Signed-off-by:
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Masahiro Yamada authored
[ Upstream commit f2f02ebd ] When cc-option and friends evaluate compiler flags, the temporary file $$TMP is created as an output object, and automatically cleaned up. The actual file path of $$TMP is .<pid>.tmp, here <pid> is the process ID of $(shell ...) invoked from cc-option. (Please note $$$$ is the escape sequence of $$). Such garbage files are cleaned up in most cases, but some compiler flags create additional output files. For example, -gsplit-dwarf creates a .dwo file. When CONFIG_DEBUG_INFO_SPLIT=y, you will see a bunch of .<pid>.dwo files left in the top of build directories. You may not notice them unless you do 'ls -a', but the garbage files will increase every time you run 'make'. This commit changes the temporary object path to .tmp_<pid>/tmp, and removes .tmp_<pid> directory when exiting. Separate build artifacts such as *.dwo will be cleaned up all together because their file paths are usually determined based on the base name of the object. Another example is -ftest-coverage, which outputs the coverage data into <base-name-of-object>.gcno Signed-off-by:
Masahiro Yamada <masahiroy@kernel.org> Signed-off-by:
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Zekun Shen authored
[ Upstream commit e89df5c4 ] There is a race condition exist during termination. The path is alx_stop and then alx_remove. An alx_schedule_link_check could be called before alx_stop by interrupt handler and invoke alx_link_check later. Alx_stop frees the napis, and alx_remove cancels any pending works. If any of the work is scheduled before termination and invoked before alx_remove, a null-ptr-deref occurs because both expect alx->napis[i]. This patch fix the race condition by moving cancel_work_sync functions before alx_free_napis inside alx_stop. Because interrupt handler can call alx_schedule_link_check again, alx_free_irq is moved before cancel_work_sync calls too. Signed-off-by:
Zekun Shen <bruceshenzk@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Juri Lelli authored
[ Upstream commit 740797ce ] syzbot reported the following warning: WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628 enqueue_task_dl+0x22da/0x38a0 kernel/sched/deadline.c:1504 At deadline.c:628 we have: 623 static inline void setup_new_dl_entity(struct sched_dl_entity *dl_se) 624 { 625 struct dl_rq *dl_rq = dl_rq_of_se(dl_se); 626 struct rq *rq = rq_of_dl_rq(dl_rq); 627 628 WARN_ON(dl_se->dl_boosted); 629 WARN_ON(dl_time_before(rq_clock(rq), dl_se->deadline)); [...] } Which means that setup_new_dl_entity() has been called on a task currently boosted. This shouldn't happen though, as setup_new_dl_entity() is only called when the 'dynamic' deadline of the new entity is in the past w.r.t. rq_clock and boosted tasks shouldn't verify this condition. Digging through the PI code I noticed that what above might in fact happen if an RT tasks blocks on an rt_mutex hold by a DEADLINE task. In the first branch of boosting conditions we check only if a pi_task 'dynamic' deadline is earlier than mutex holder's and in this case we set mutex holder to be dl_boosted. However, since RT 'dynamic' deadlines are only initialized if such tasks get boosted at some point (or if they become DEADLINE of course), in general RT 'dynamic' deadlines are usually equal to 0 and this verifies the aforementioned condition. Fix it by checking that the potential donor task is actually (even if temporary because in turn boosted) running at DEADLINE priority before using its 'dynamic' deadline value. Fixes: 2d3d891d ("sched/deadline: Add SCHED_DEADLINE inheritance logic") Reported-by:
<syzbot+119ba87189432ead09b4@syzkaller.appspotmail.com> Signed-off-by:
Juri Lelli <juri.lelli@redhat.com> Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
Ingo Molnar <mingo@kernel.org> Reviewed-by:
Daniel Bristot de Oliveira <bristot@redhat.com> Tested-by:
Daniel Wagner <dwagner@suse.de> Link: https://lkml.kernel.org/r/20181119153201.GB2119@localhost.localdomain Signed-off-by:
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Russell King authored
[ Upstream commit 71502846 ] When using ip_set with counters and comment, traffic causes the kernel to panic on 32-bit ARM: Alignment trap: not handling instruction e1b82f9f at [<bf01b0dc>] Unhandled fault: alignment exception (0x221) at 0xea08133c PC is at ip_set_match_extensions+0xe0/0x224 [ip_set] The problem occurs when we try to update the 64-bit counters - the faulting address above is not 64-bit aligned. The problem occurs due to the way elements are allocated, for example: set->dsize = ip_set_elem_len(set, tb, 0, 0); map = ip_set_alloc(sizeof(*map) + elements * set->dsize); If the element has a requirement for a member to be 64-bit aligned, and set->dsize is not a multiple of 8, but is a multiple of four, then every odd numbered elements will be misaligned - and hitting an atomic64_add() on that element will cause the kernel to panic. ip_set_elem_len() must return a size that is rounded to the maximum alignment of any extension field stored in the element. This change ensures that is the case. Fixes: 95ad1f4a ("netfilter: ipset: Fix extension alignment") Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Acked-by:
Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
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Dan Carpenter authored
[ Upstream commit e55f3c37 ] If this is in "transceiver" mode the the ->qwork isn't required and is a NULL pointer. This can lead to a NULL dereference when we call destroy_workqueue(udc->qwork). Fixes: 3517c31a ("usb: gadget: mv_udc: use devm_xxx for probe") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Felipe Balbi <balbi@kernel.org> Signed-off-by:
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yu kuai authored
[ Upstream commit 586745f1 ] if of_find_device_by_node() succeed, imx_suspend_alloc_ocram() doesn't have a corresponding put_device(). Thus add a jump target to fix the exception handling for this function implementation. Fixes: 1579c7b9 ("ARM: imx53: Set DDR pins to high impedance when in suspend to RAM.") Signed-off-by:
yu kuai <yukuai3@huawei.com> Signed-off-by:
Shawn Guo <shawnguo@kernel.org> Signed-off-by:
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Fan Guo authored
[ Upstream commit a17f4bed ] If ib_dma_mapping_error() returns non-zero value, ib_mad_post_receive_mads() will jump out of loops and return -ENOMEM without freeing mad_priv. Fix this memory-leak problem by freeing mad_priv in this case. Fixes: 2c34e68f ("IB/mad: Check and handle potential DMA mapping errors") Link: https://lore.kernel.org/r/20200612063824.180611-1-guofan5@huawei.com Signed-off-by:
Fan Guo <guofan5@huawei.com> Signed-off-by:
Jason Gunthorpe <jgg@mellanox.com> Signed-off-by:
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Qiushi Wu authored
[ Upstream commit 4ddf4739 ] kobject_init_and_add() takes reference even when it fails. If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Previous commit "b8eb7183" fixed a similar problem. Fixes: 0bb54905 ("efi: Add esrt support") Signed-off-by:
Qiushi Wu <wu000273@umn.edu> Link: https://lore.kernel.org/r/20200528183804.4497-1-wu000273@umn.edu Signed-off-by:
Ard Biesheuvel <ardb@kernel.org> Signed-off-by:
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Zhang Xiaoxu authored
[ Upstream commit 6b690402 ] CIFS implements the fallocate(FALLOC_FL_ZERO_RANGE) with send SMB ioctl(FSCTL_SET_ZERO_DATA) to server. It just set the range of the remote file to zero, but local page cache not update, then the data inconsistent with server, which leads the xfstest generic/008 failed. So we need to remove the local page caches before send SMB ioctl(FSCTL_SET_ZERO_DATA) to server. After next read, it will re-cache it. Fixes: 30175628 ("[SMB3] Enable fallocate -z support for SMB3 mounts") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Reviewed-by:
Pavel Shilovsky <pshilov@microsoft.com> Cc: stable@vger.kernel.org # v3.17 Signed-off-by:
Steve French <stfrench@microsoft.com> Signed-off-by:
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Zhang Xiaoxu authored
[ Upstream commit acc91c2d ] When punch hole success, we also can read old data from file: # strace -e trace=pread64,fallocate xfs_io -f -c "pread 20 40" \ -c "fpunch 20 40" -c"pread 20 40" file pread64(3, " version 5.8.0-rc1+"..., 40, 20) = 40 fallocate(3, FALLOC_FL_KEEP_SIZE|FALLOC_FL_PUNCH_HOLE, 20, 40) = 0 pread64(3, " version 5.8.0-rc1+"..., 40, 20) = 40 CIFS implements the fallocate(FALLOCATE_FL_PUNCH_HOLE) with send SMB ioctl(FSCTL_SET_ZERO_DATA) to server. It just set the range of the remote file to zero, but local page caches not updated, then the local page caches inconsistent with server. Also can be found by xfstests generic/316. So, we need to remove the page caches before send the SMB ioctl(FSCTL_SET_ZERO_DATA) to server. Fixes: 31742c5a ("enable fallocate punch hole ("fallocate -p") for SMB3") Suggested-by:
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Kai-Heng Feng authored
[ Upstream commit b3d71abd ] USB2 devices with LPM enabled may interrupt the system suspend: [ 932.510475] usb 1-7: usb suspend, wakeup 0 [ 932.510549] hub 1-0:1.0: hub_suspend [ 932.510581] usb usb1: bus suspend, wakeup 0 [ 932.510590] xhci_hcd 0000:00:14.0: port 9 not suspended [ 932.510593] xhci_hcd 0000:00:14.0: port 8 not suspended .. [ 932.520323] xhci_hcd 0000:00:14.0: Port change event, 1-7, id 7, portsc: 0x400e03 .. [ 932.591405] PM: pci_pm_suspend(): hcd_pci_suspend+0x0/0x30 returns -16 [ 932.591414] PM: dpm_run_callback(): pci_pm_suspend+0x0/0x160 returns -16 [ 932.591418] PM: Device 0000:00:14.0 failed to suspend async: error -16 During system suspend, USB core will let HC suspends the device if it doesn't have remote wakeup enabled and doesn't have any children. However, from the log above we can see that the usb 1-7 doesn't get bus suspended due to not in U0. After a while the port finished U2 -> U0 transition, interrupts the suspend process. The observation is that after disabling LPM, port doesn't transit to U0 immediately and can linger in U2. xHCI spec 4.23.5.2 states that the maximum exit latency for USB2 LPM should be BESL + 10us. The BESL for the affected device is advertised as 400us, which is still not enough based on my testing result. So let's use the maximum permitted latency, 10000, to poll for U0 status to solve the issue. Cc: stable@vger.kernel.org Signed-off-by:
Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200624135949.22611-6-mathias.nyman@linux.intel.com Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 220345e9 ] The USB-audio mixer code holds a linked list of usb_mixer_elem_list, and several operations are performed for each mixer element. A few of them (snd_usb_mixer_notify_id() and snd_usb_mixer_interrupt_v2()) assume each mixer element being a usb_mixer_elem_info object that is a subclass of usb_mixer_elem_list, cast via container_of() and access it members. This may result in an out-of-bound access when a non-standard list element has been added, as spotted by syzkaller recently. This patch adds a new field, is_std_info, in usb_mixer_elem_list to indicate that the element is the usb_mixer_elem_info type or not, and skip the access to such an element if needed. Reported-by:
<syzbot+fb14314433463ad51625@syzkaller.appspotmail.com> Reported-by:
<syzbot+2405ca3401e943c538b5@syzkaller.appspotmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200624122340.9615-1-tiwai@suse.de Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 8c558076 ] Introduce a new macro for iterating over mixer element list for avoiding the open codes in many places. Also the open-coded container_of() and the forced cast to struct usb_mixer_elem_info are replaced with another simple macro, too. No functional changes but just readability improvement. Signed-off-by:
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Daniel Mack authored
[ Upstream commit 191227d9 ] miniDSP USBStreamer UAC2 devices send clock validity changes with the control field set to zero. The current interrupt handler ignores all packets if the control field does not match the mixer element's, but it really should only do that in case that field is needed to distinguish multiple elements with the same ID. This patch implements a logic that lets notifications packets pass if the element ID is unique for a given device. Signed-off-by:
Daniel Mack <daniel@zonque.org> Signed-off-by:
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Julian Scheel authored
[ Upstream commit b2500b58 ] When an interrupt occurs, the value of at least one of the belonging controls should have changed. To make sure they get re-read from device on the next read, invalidate the cache. This was correctly implemented for uac2 already, but missing for uac1. Signed-off-by:
Julian Scheel <julian@jusst.de> Signed-off-by:
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Joakim Tjernlund authored
commit 03894573 upstream. USB_DEVICE(0x0424, 0x274e) can send data before cdc_acm is ready, causing garbage chars on the TTY causing stray input to the shell and/or login prompt. Signed-off-by:
Joakim Tjernlund <joakim.tjernlund@infinera.com> Cc: stable@vger.kernel.org Acked-by:
Oliver Neukum <oneukum@suse.com> Link: https://lore.kernel.org/r/20200605105418.22263-1-joakim.tjernlund@infinera.com Signed-off-by:
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Al Cooper authored
commit a73d9d9c upstream. Unable to complete the enumeration of a USB TV Tuner device. Per XHCI spec (4.6.5), the EP state field of the input context shall be cleared for a set address command. In the special case of an FS device that has "MaxPacketSize0 = 8", the Linux XHCI driver does not do this before evaluating the context. With an XHCI controller that checks the EP state field for parameter context error this causes a problem in cases such as the device getting reset again after enumeration. When that field is cleared, the problem does not occur. This was found and fixed by Sasi Kumar. Cc: stable@vger.kernel.org Signed-off-by:
Al Cooper <alcooperx@gmail.com> Signed-off-by:
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Mathias Nyman authored
commit dceea670 upstream. EP_STATE_MASK should be 0x7 instead of 0xf xhci spec 6.2.3 shows that the EP state field in the endpoint context data structure consist of bits [2:0]. The old value included a bit from the next field which fortunately is a RsvdZ region. So hopefully this hasn't caused too much harm Cc: stable@vger.kernel.org Signed-off-by:
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Yick W. Tse authored
commit c9808bbf upstream. fix error "clock source 41 is not valid, cannot use" [] New USB device found, idVendor=154e, idProduct=1002, bcdDevice= 1.00 [] New USB device strings: Mfr=1, Product=2, SerialNumber=0 [] Product: DCD-1500RE [] Manufacturer: D & M Holdings Inc. [] [] clock source 41 is not valid, cannot use [] usbcore: registered new interface driver snd-usb-audio Signed-off-by:
Yick W. Tse <y_w_tse@yahoo.com.hk> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/1373857985.210365.1592048406997@mail.yahoo.com Signed-off-by:
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Tang Bin authored
commit 44ed240d upstream. If the function platform_get_irq() failed, the negative value returned will not be detected here. So fix error handling in exynos_ehci_probe(). And when get irq failed, the function platform_get_irq() logs an error message, so remove redundant message here. Fixes: 1bcc5aa8 ("USB: Add initial S5P EHCI driver") Cc: stable <stable@vger.kernel.org> Signed-off-by:
Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by:
Tang Bin <tangbin@cmss.chinamobile.com> Link: https://lore.kernel.org/r/20200602114708.28620-1-tangbin@cmss.chinamobile.com Signed-off-by:
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Longfang Liu authored
commit 1ddcb71a upstream. A Synopsys USB2.0 core used in Huawei Kunpeng920 SoC has a bug which might cause the host controller not issuing ping. Bug description: After indicating an Interrupt on Async Advance, the software uses the doorbell mechanism to delete the Next Link queue head of the last executed queue head. At this time, the host controller still references the removed queue head(the queue head is NULL). NULL reference causes the host controller to lose the USB device. Solution: After deleting the Next Link queue head, when has_synopsys_hc_bug set to 1，the software can write one of the valid queue head addresses to the ASYNCLISTADDR register to allow the host controller to get the valid queue head. in order to solve that problem, this patch set the flag for Huawei Kunpeng920 There are detailed instructions and solutions in this patch: commit 2f7ac6c1 ("USB: ehci: add workaround for Synopsys HC bug") Signed-off-by:
Longfang Liu <liulongfang@huawei.com> Cc: stable <stable@vger.kernel.org> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/1591588019-44284-1-git-send-email-liulongfang@huawei.com Signed-off-by:
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Dongdong Liu authored
commit 72f2ff0d upstream. The PCIe Root Port in Hip06/Hip07 SoCs advertises an MSI capability, but it cannot generate MSIs. It can transfer MSI/MSI-X from downstream devices, but does not support MSI/MSI-X itself. Add a quirk to prevent use of MSI/MSI-X by the Root Port. [bhelgaas: changelog, sort vendor ID #define, drop device ID #define] Signed-off-by:
Gabriele Paoloni <gabriele.paoloni@huawei.com> Reviewed-by:
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