Messages in this thread | | | Date | Wed, 14 Sep 2016 16:47:47 +0100 | From | Al Viro <> | Subject | [git pull] uaccess fixes |
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Fixes for broken uaccess primitives - mostly lack of proper zeroing in copy_from_user()/get_user()/__get_user(), but for several architectures there's more (broken clear_user() on frv and strncpy_from_user() on hexagon). All of that is rc2-based stable fodder; usercopy stuff that went into mainline since then has added 3 conflicts - in parisc, ppc and itanic uaccess.h. Conflicts are trivial; I've pushed my variant of conflict resolution into #proposed-merge.
The following changes since commit 694d0d0bb2030d2e36df73e2d23d5770511dbc8d:
Linux 4.8-rc2 (2016-08-14 19:11:36 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git uaccess-fixes
for you to fetch changes up to 8630c32275bac2de6ffb8aea9d9b11663e7ad28e:
avr32: fix copy_from_user() (2016-09-13 17:50:18 -0400)
---------------------------------------------------------------- Al Viro (27): alpha: fix copy_from_user() asm-generic: make copy_from_user() zero the destination properly asm-generic: make get_user() clear the destination on errors cris: buggered copy_from_user/copy_to_user/clear_user frv: fix clear_user() hexagon: fix strncpy_from_user() error return ia64: copy_from_user() should zero the destination on access_ok() failure metag: copy_from_user() should zero the destination on access_ok() failure mips: copy_from_user() must zero the destination on access_ok() failure mn10300: failing __get_user() and get_user() should zero mn10300: copy_from_user() should zero on access_ok() failure... nios2: copy_from_user() should zero the tail of destination nios2: fix __get_user() openrisc: fix copy_from_user() parisc: fix copy_from_user() ppc32: fix copy_from_user() s390: get_user() should zero on failure score: fix __get_user/get_user score: fix copy_from_user() and friends sh64: failing __get_user() should zero sh: fix copy_from_user() sparc32: fix copy_from_user() blackfin: fix copy_from_user() m32r: fix __get_user() microblaze: fix copy_from_user() microblaze: fix __get_user() avr32: fix copy_from_user()
Vineet Gupta (1): ARC: uaccess: get_user to zero out dest in cause of fault
arch/alpha/include/asm/uaccess.h | 19 ++++------ arch/arc/include/asm/uaccess.h | 11 +++++- arch/avr32/include/asm/uaccess.h | 11 +++++- arch/avr32/kernel/avr32_ksyms.c | 2 +- arch/avr32/lib/copy_user.S | 4 +- arch/blackfin/include/asm/uaccess.h | 9 +++-- arch/cris/include/asm/uaccess.h | 71 ++++++++++++++++------------------- arch/frv/include/asm/uaccess.h | 12 ++++-- arch/hexagon/include/asm/uaccess.h | 3 +- arch/ia64/include/asm/uaccess.h | 25 ++++++------ arch/m32r/include/asm/uaccess.h | 2 +- arch/metag/include/asm/uaccess.h | 3 +- arch/microblaze/include/asm/uaccess.h | 11 ++++-- arch/mips/include/asm/uaccess.h | 3 ++ arch/mn10300/include/asm/uaccess.h | 1 + arch/mn10300/lib/usercopy.c | 4 +- arch/nios2/include/asm/uaccess.h | 13 ++++--- arch/openrisc/include/asm/uaccess.h | 35 ++++++----------- arch/parisc/include/asm/uaccess.h | 6 ++- arch/powerpc/include/asm/uaccess.h | 25 +----------- arch/s390/include/asm/uaccess.h | 8 ++-- arch/score/include/asm/uaccess.h | 46 ++++++++++++----------- arch/sh/include/asm/uaccess.h | 5 ++- arch/sh/include/asm/uaccess_64.h | 1 + arch/sparc/include/asm/uaccess_32.h | 4 +- include/asm-generic/uaccess.h | 20 ++++++---- 26 files changed, 180 insertions(+), 174 deletions(-)
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