# git rev-parse -q --verify 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f^{commit} 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f already have revision, skipping fetch # git checkout -q -f -B kisskb 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f # git clean -qxdf # < git log -1 # commit 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f # Merge: 51184ae37e05 316ec1548109 # Author: Linus Torvalds # Date: Tue Apr 28 09:13:08 2020 -0700 # # Merge tag 'cve-2020-11884' from emailed bundle # # Pull s390 fix from Christian Borntraeger: # "Fix a race between page table upgrade and uaccess on s390. # # This fixes CVE-2020-11884 which allows for a local kernel crash or # code execution" # # * tag 'cve-2020-11884' from emailed bundle: # s390/mm: fix page table upgrade vs 2ndary address mode accesses # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 3f777e19d171670ab558a6d5e6b1ac7f9b6c574f # < make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0x3A89425A # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # < make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- help # make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- olddefconfig .config:5294:warning: override: reassigning to symbol STANDALONE .config:5298:warning: override: reassigning to symbol PPC64 .config:5299:warning: override: reassigning to symbol PPC_DISABLE_WERROR .config:5301:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] # make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [m]: - OCXL [=m] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:72:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:471:21: note: 'pdeo' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/bmap.c: In function 'gfs2_iomap_get': /kisskb/src/fs/gfs2/bmap.c:956:18: warning: 'height' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/bmap.c:951:7: warning: 'len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/bmap.c:957:8: warning: 'lblock' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/gfs2/lops.c: In function 'gfs2_find_jhead': /kisskb/src/fs/gfs2/lops.c:568:8: warning: 'off' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/bpf/inode.c: In function 'bpf_obj_pin_user': /kisskb/src/kernel/bpf/inode.c:464:14: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/f2fs/node.c: In function '__set_nat_cache_dirty': /kisskb/src/fs/f2fs/node.c:263:17: warning: 'head' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/splice.c: In function '__do_compat_sys_vmsplice': /kisskb/src/fs/splice.c:1416:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/splice.c: In function '__do_sys_vmsplice': /kisskb/src/fs/splice.c:1390:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_level_show': /kisskb/src/drivers/video/backlight/adp8860_bl.c:578:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/btrfs/backref.c: In function 'is_shared_data_backref': /kisskb/src/fs/btrfs/backref.c:394:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/fs/btrfs/backref.c:394:9: warning: (near initialization for 'target.rbnode') [-Wmissing-braces] /kisskb/src/kernel/bpf/btf.c: In function '__btf_resolve_helper_id': /kisskb/src/kernel/bpf/btf.c:4038:20: warning: 't' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c: In function 'rhashtable_rehash_one.isra.24': /kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here /kisskb/src/kernel/futex.c: In function 'futex_atomic_op_inuser': /kisskb/src/kernel/futex.c:1686:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/nvme/target/io-cmd-bdev.c: In function 'nvmet_bdev_execute_discard': /kisskb/src/drivers/nvme/target/io-cmd-bdev.c:277:21: warning: 'status' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port': /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5498:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5498:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces] /kisskb/src/drivers/misc/cxl/native.c: In function 'native_irq_wait': /kisskb/src/drivers/misc/cxl/native.c:1244:2: warning: 'ph' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/misc/cxl/native.c:1244:2: warning: 'dsisr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/misc/appledisplay.c: In function 'appledisplay_bl_get_brightness': /kisskb/src/drivers/usb/misc/appledisplay.c:155:14: warning: 'brightness' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/core/config.c: In function 'usb_get_configuration': /kisskb/src/drivers/usb/core/config.c:868:6: warning: 'result' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/mtd/ubi/eba.c: In function 'try_write_vid_and_data': /kisskb/src/drivers/mtd/ubi/eba.c:988:7: warning: 'opnum' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/misc/usbtest.c: In function 'test_queue': /kisskb/src/drivers/usb/misc/usbtest.c:2148:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=] /kisskb/src/drivers/vhost/vdpa.c: In function 'vhost_vdpa_process_iotlb_update': /kisskb/src/drivers/vhost/vdpa.c:559:33: warning: 'map_pfn' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/serial/f81534.c: In function 'f81534_set_register': /kisskb/src/drivers/usb/serial/f81534.c:247:3: warning: 'status' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/serial/f81534.c: In function 'f81534_get_register': /kisskb/src/drivers/usb/serial/f81534.c:286:3: warning: 'status' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_connector_check': /kisskb/src/drivers/gpu/drm/drm_atomic.c:427:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/hwspinlock/hwspinlock_core.c: In function 'of_hwspin_lock_get_id': /kisskb/src/drivers/hwspinlock/hwspinlock_core.c:345:6: warning: 'id' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/test_objagg.c: In function 'test_hints_case.constprop.7': /kisskb/src/lib/test_objagg.c:994:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] /kisskb/src/drivers/bcma/sprom.c: In function 'bcma_sprom_get': /kisskb/src/drivers/bcma/sprom.c:644:8: warning: 'sprom' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/pressure/dlhl60d.c: In function 'dlh_read_raw': /kisskb/src/drivers/iio/pressure/dlhl60d.c:166:11: warning: 'temperature' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/pressure/dlhl60d.c:162:11: warning: 'pressure' may be used uninitialized in this function [-Wuninitialized] WARNING: modpost: vmlinux.o(.text.unlikely+0x2128): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_root() The function .xive_spapr_disabled() references the function __init .of_get_flat_dt_root(). This is often because .xive_spapr_disabled lacks a __init annotation or the annotation of .of_get_flat_dt_root is wrong. WARNING: modpost: vmlinux.o(.text.unlikely+0x2138): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_subnode_by_name() The function .xive_spapr_disabled() references the function __init .of_get_flat_dt_subnode_by_name(). This is often because .xive_spapr_disabled lacks a __init annotation or the annotation of .of_get_flat_dt_subnode_by_name is wrong. WARNING: modpost: vmlinux.o(.text.unlikely+0x2154): Section mismatch in reference from the function .xive_spapr_disabled() to the function .init.text:.of_get_flat_dt_prop() The function .xive_spapr_disabled() references the function __init .of_get_flat_dt_prop(). This is often because .xive_spapr_disabled lacks a __init annotation or the annotation of .of_get_flat_dt_prop is wrong. Completed OK # rm -rf /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.6 # Build took: 0:02:19.207113