kernel/linux.git, branch v4.14.22

Linux 4.14.22

2018-02-25T10:08:04+00:00

vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems

2018-02-25T10:08:04+00:00

commit 698d0831ba87b92ae10b15e8203cfd59f5a59a35 upstream. Kai Heng Feng has noticed that BUG_ON(PageHighMem(pg)) triggers in drivers/media/common/saa7146/saa7146_core.c since 19809c2da28a ("mm, vmalloc: use __GFP_HIGHMEM implicitly"). saa7146_vmalloc_build_pgtable uses vmalloc_32 and it is reasonable to expect that the resulting page is not in highmem. The above commit aimed to add __GFP_HIGHMEM only for those requests which do not specify any zone modifier gfp flag. vmalloc_32 relies on GFP_VMALLOC32 which should do the right thing. Except it has been missed that GFP_VMALLOC32 is an alias for GFP_KERNEL on 32b architectures. Thanks to Matthew to notice this. Fix the problem by unconditionally setting GFP_DMA32 in GFP_VMALLOC32 for !64b arches (as a bailout). This should do the right thing and use ZONE_NORMAL which should be always below 4G on 32b systems. Debugged by Matthew Wilcox. [akpm@linux-foundation.org: coding-style fixes] Link: http://lkml.kernel.org/r/20180212095019.GX21609@dhcp22.suse.cz Fixes: 19809c2da28a ("mm, vmalloc: use __GFP_HIGHMEM implicitly”) Signed-off-by: Michal Hocko Reported-by: Kai Heng Feng Cc: Matthew Wilcox Cc: Laura Abbott Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

mei: me: add cannon point device ids for 4th device

2018-02-25T10:08:04+00:00

commit 2a4ac172c2f257d28c47b90c9e381bec31edcc44 upstream. Add cannon point device ids for 4th (itouch) device. Cc: 4.14+ Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

mei: me: add cannon point device ids

2018-02-25T10:08:04+00:00

commit f8f4aa68a8ae98ed79c8fee3488c38a2f5d2de8c upstream. Add CNP LP and CNP H device ids for cannon lake and coffee lake platforms. Cc: 4.14+ Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman

crypto: s5p-sss - Fix kernel Oops in AES-ECB mode

2018-02-25T10:08:04+00:00

commit c927b080c67e3e97193c81fc1d27f4251bf4e036 upstream. In AES-ECB mode crypt is done with key only, so any use of IV can cause kernel Oops. Use IV only in AES-CBC and AES-CTR. Signed-off-by: Kamil Konieczny Reported-by: Anand Moon Reviewed-by: Krzysztof Kozlowski Tested-by: Anand Moon Cc: stable@vger.kernel.org # can be applied after commit 8f9702aad138 Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

drm/i915: fix intel_backlight_device_register declaration

2018-02-25T10:08:04+00:00

commit ac29fc66855b79c2960c63a4a66952d5b721d698 upstream. The alternative intel_backlight_device_register() definition apparently never got used, but I have now run into a case of i915 being compiled without CONFIG_BACKLIGHT_CLASS_DEVICE, resulting in a number of identical warnings: drivers/gpu/drm/i915/intel_drv.h:1739:12: error: 'intel_backlight_device_register' defined but not used [-Werror=unused-function] This marks the function as 'inline', which was surely the original intention here. Fixes: 1ebaa0b9c2d4 ("drm/i915: Move backlight registration to connector registration") Signed-off-by: Arnd Bergmann Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20171127151239.1813673-1-arnd@arndb.de (cherry picked from commit 2de2d0b063b08becb2c67a2c338c44e37bdcffee) Signed-off-by: Joonas Lahtinen Signed-off-by: Greg Kroah-Hartman

crypto: talitos - fix Kernel Oops on hashing an empty file

2018-02-25T10:08:04+00:00

commit 87a81dce53b1ea61acaeefa5191a0376a2d1d721 upstream. Performing the hash of an empty file leads to a kernel Oops [ 44.504600] Unable to handle kernel paging request for data at address 0x0000000c [ 44.512819] Faulting instruction address: 0xc02d2be8 [ 44.524088] Oops: Kernel access of bad area, sig: 11 [#1] [ 44.529171] BE PREEMPT CMPC885 [ 44.532232] CPU: 0 PID: 491 Comm: md5sum Not tainted 4.15.0-rc8-00211-g3a968610b6ea #81 [ 44.540814] NIP: c02d2be8 LR: c02d2984 CTR: 00000000 [ 44.545812] REGS: c6813c90 TRAP: 0300 Not tainted (4.15.0-rc8-00211-g3a968610b6ea) [ 44.554223] MSR: 00009032 CR: 48222822 XER: 20000000 [ 44.560855] DAR: 0000000c DSISR: c0000000 [ 44.560855] GPR00: c02d28fc c6813d40 c6828000 c646fa40 00000001 00000001 00000001 00000000 [ 44.560855] GPR08: 0000004c 00000000 c000bfcc 00000000 28222822 100280d4 00000000 10020008 [ 44.560855] GPR16: 00000000 00000020 00000000 00000000 10024008 00000000 c646f9f0 c6179a10 [ 44.560855] GPR24: 00000000 00000001 c62f0018 c6179a10 00000000 c6367a30 c62f0000 c646f9c0 [ 44.598542] NIP [c02d2be8] ahash_process_req+0x448/0x700 [ 44.603751] LR [c02d2984] ahash_process_req+0x1e4/0x700 [ 44.608868] Call Trace: [ 44.611329] [c6813d40] [c02d28fc] ahash_process_req+0x15c/0x700 (unreliable) [ 44.618302] [c6813d90] [c02060c4] hash_recvmsg+0x11c/0x210 [ 44.623716] [c6813db0] [c0331354] ___sys_recvmsg+0x98/0x138 [ 44.629226] [c6813eb0] [c03332c0] __sys_recvmsg+0x40/0x84 [ 44.634562] [c6813f10] [c03336c0] SyS_socketcall+0xb8/0x1d4 [ 44.640073] [c6813f40] [c000d1ac] ret_from_syscall+0x0/0x38 [ 44.645530] Instruction dump: [ 44.648465] 38c00001 7f63db78 4e800421 7c791b78 54690ffe 0f090000 80ff0190 2f870000 [ 44.656122] 40befe50 2f990001 409e0210 813f01bc <8129000c> b39e003a 7d29c214 913e003c This patch fixes that Oops by checking if src is NULL. Fixes: 6a1e8d14156d4 ("crypto: talitos - making mapping helpers more generic") Cc: Signed-off-by: Christophe Leroy Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman

hippi: Fix a Fix a possible sleep-in-atomic bug in rr_close

2018-02-25T10:08:04+00:00

[ Upstream commit 6e266610eb6553cfb7e7eb5d11914bd01509c406 ] The driver may sleep under a spinlock. The function call path is: rr_close (acquire the spinlock) free_irq --> may sleep To fix it, free_irq is moved to the place without holding the spinlock. This bug is found by my static analysis tool(DSAC) and checked by my code review. Signed-off-by: Jia-Ju Bai Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

powerpc/perf/imc: Fix nest-imc cpuhotplug callback failure

2018-02-25T10:08:03+00:00

[ Upstream commit ad2b6e01024ef23bddc3ce0bcb115ecd8c520b7e ] Oops is observed during boot: Faulting instruction address: 0xc000000000248340 cpu 0x0: Vector: 380 (Data Access Out of Range) at [c000000ff66fb850] pc: c000000000248340: event_function_call+0x50/0x1f0 lr: c00000000024878c: perf_remove_from_context+0x3c/0x100 sp: c000000ff66fbad0 msr: 9000000000009033 dar: 7d20e2a6f92d03c0 pid = 14, comm = cpuhp/0 While registering the cpuhotplug callbacks for nest-imc, if we fail in the cpuhotplug online path for any random node in a multi node system (because the opal call to stop nest-imc counters fails for that node), ppc_nest_imc_cpu_offline() will get invoked for other nodes who successfully returned from cpuhotplug online path. This call trace is generated since in the ppc_nest_imc_cpu_offline() path we are trying to migrate the event context, when nest-imc counters are not even initialized. Patch to add a check to ensure that nest-imc is registered before migrating the event context. Fixes: 885dcd709ba9 ("powerpc/perf: Add nest IMC PMU support") Signed-off-by: Anju T Sudhakar Reviewed-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

PCI: rcar: Fix use-after-free in probe error path

2018-02-25T10:08:03+00:00

[ Upstream commit 0c31f1d7be1b5c4858b1d714dcefa25f41428cab ] If CONFIG_DEBUG_SLAB=y, and no PCIe card is inserted, the kernel crashes during probe on r8a7791/koelsch: rcar-pcie fe000000.pcie: PCIe link down Unable to handle kernel paging request at virtual address 6b6b6b6b (seeing this message requires earlycon and keep_bootcon). Indeed, pci_free_host_bridge() frees the PCI host bridge, including the embedded rcar_pcie object, so pci_free_resource_list() must not be called afterwards. To fix this, move the call to pci_free_resource_list() up, and update the label name accordingly. Fixes: ddd535f1ea3eb27e ("PCI: rcar: Fix memory leak when no PCIe card is inserted") Signed-off-by: Geert Uytterhoeven Signed-off-by: Bjorn Helgaas Acked-by: Simon Horman Acked-by: Lorenzo Pieralisi Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman