kernel.git/arch/um/kernel, branch linux-2.6.32.y

uml: check length in exitcode_proc_write()

2014-05-19T05:54:32Z

commit 201f99f170df14ba52ea4c52847779042b7a623b upstream We don't cap the size of buffer from the user so we could write past the end of the array here. Only root can write to this file. Reported-by: Nico Golde Reported-by: Fabian Yamaguchi Signed-off-by: Dan Carpenter Cc: stable@kernel.org Signed-off-by: Linus Torvalds Signed-off-by: Willy Tarreau

uml: fix CONFIG_STATIC_LINK=y build failure with newer glibc

2011-07-13T03:29:26Z

commit aa5fb4dbfd121296ca97c68cf90043a7ea97579d upstream. With glibc 2.11 or later that was built with --enable-multi-arch, the UML link fails with undefined references to __rel_iplt_start and similar symbols. In recent binutils, the default linker script defines these symbols (see ld --verbose). Fix the UML linker scripts to match the new defaults for these sections. Signed-off-by: Roland McGrath Cc: Jeff Dike Cc: Al Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

um: remove PAGE_SIZE alignment in linker script causing kernel segfault.

2010-12-09T21:26:37Z

commit 6915e04f8847bea16d0890f559694ad8eedd026c upstream. The linker script cleanup that I did in commit 5d150a97f93 ("um: Clean up linker script using standard macros.") (2.6.32) accidentally introduced an ALIGN(PAGE_SIZE) when converting to use INIT_TEXT_SECTION; Richard Weinberger reported that this causes the kernel to segfault with CONFIG_STATIC_LINK=y. I'm not certain why this extra alignment is a problem, but it seems likely it is because previously __init_begin = _stext = _text = _sinittext and with the extra ALIGN(PAGE_SIZE), _sinittext becomes different from the rest. So there is likely a bug here where something is assuming that _sinittext is the same as one of those other symbols. But reverting the accidental change fixes the regression, so it seems worth committing that now. Signed-off-by: Tim Abbott Reported-by: Richard Weinberger Cc: Jeff Dike Tested by: Antoine Martin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman

untangle the do_mremap() mess

2010-01-18T18:19:11Z

This backports the following upstream commits all as one patch: 54f5de709984bae0d31d823ff03de755f9dcac54 ecc1a8993751de4e82eb18640d631dae1f626bd6 1a0ef85f84feb13f07b604fcf5b90ef7c2b5c82f f106af4e90eadd76cfc0b5325f659619e08fb762 097eed103862f9c6a97f2e415e21d1134017b135 935874141df839c706cd6cdc438e85eb69d1525e 0ec62d290912bb4b989be7563851bc364ec73b56 c4caa778157dbbf04116f0ac2111e389b5cd7a29 2ea1d13f64efdf49319e86c87d9ba38c30902782 570dcf2c15463842e384eb597a87c1e39bead99b 564b3bffc619dcbdd160de597b0547a7017ea010 0067bd8a55862ac9dd212bd1c4f6f5bff1ca1301 f8b7256096a20436f6d0926747e3ac3d64c81d24 8c7b49b3ecd48923eb64ff57e07a1cdb74782970 9206de95b1ea68357996ec02be5db0638a0de2c1 2c6a10161d0b5fc047b5bd81b03693b9af99fab5 05d72faa6d13c9d857478a5d35c85db9adada685 bb52d6694002b9d632bb355f64daa045c6293a4e e77414e0aad6a1b063ba5e5750c582c75327ea6a aa65607373a4daf2010e8c3867b6317619f3c1a3 Backport done by Greg Kroah-Hartman. Only minor tweaks were needed. Cc: David S. Miller Cc: Hugh Dickins Cc: Paul Mundt Cc: Russell King Cc: Linus Torvalds Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman

headers: remove sched.h from interrupt.h

2009-10-11T18:20:58Z

After m68k's task_thread_info() doesn't refer to current, it's possible to remove sched.h from interrupt.h and not break m68k! Many thanks to Heiko Carstens for allowing this. Signed-off-by: Alexey Dobriyan

um: Clean up linker script using standard macros.

2009-09-25T00:16:22Z

Signed-off-by: Tim Abbott Cc: Jeff Dike Cc: user-mode-linux-devel@lists.sourceforge.net Acked-by: Sam Ravnborg Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus

2009-09-24T01:14:11Z

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (39 commits) cpumask: Move deprecated functions to end of header. cpumask: remove unused deprecated functions, avoid accusations of insanity cpumask: use new-style cpumask ops in mm/quicklist. cpumask: use mm_cpumask() wrapper: x86 cpumask: use mm_cpumask() wrapper: um cpumask: use mm_cpumask() wrapper: mips cpumask: use mm_cpumask() wrapper: mn10300 cpumask: use mm_cpumask() wrapper: m32r cpumask: use mm_cpumask() wrapper: arm cpumask: Use accessors for cpu_*_mask: um cpumask: Use accessors for cpu_*_mask: powerpc cpumask: Use accessors for cpu_*_mask: mips cpumask: Use accessors for cpu_*_mask: m32r cpumask: remove arch_send_call_function_ipi cpumask: arch_send_call_function_ipi_mask: s390 cpumask: arch_send_call_function_ipi_mask: powerpc cpumask: arch_send_call_function_ipi_mask: mips cpumask: arch_send_call_function_ipi_mask: m32r cpumask: arch_send_call_function_ipi_mask: alpha cpumask: remove obsolete topology_core_siblings and topology_thread_siblings: ia64 ...

cpumask: Use accessors for cpu_*_mask: um

2009-09-24T00:04:49Z

Use the accessors rather than frobbing bits directly (the new versions are const). Signed-off-by: Rusty Russell Signed-off-by: Mike Travis

Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next

2009-09-23T22:37:02Z

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (30 commits) Use macros for .data.page_aligned section. Use macros for .bss.page_aligned section. Use new __init_task_data macro in arch init_task.c files. kbuild: Don't define ALIGN and ENTRY when preprocessing linker scripts. arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0 kbuild: add static to prototypes kbuild: fail build if recordmcount.pl fails kbuild: set -fconserve-stack option for gcc 4.5 kbuild: echo the record_mcount command gconfig: disable "typeahead find" search in treeviews kbuild: fix cc1 options check to ensure we do not use -fPIC when compiling checkincludes.pl: add option to remove duplicates in place markup_oops: use modinfo to avoid confusion with underscored module names checkincludes.pl: provide usage helper checkincludes.pl: close file as soon as we're done with it ctags: usability fix kernel hacking: move STRIP_ASM_SYMS from General gitignore usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzma kbuild: Check if linker supports the -X option kbuild: introduce ld-option ... Fix trivial conflict in scripts/basic/fixdep.c

uml: fix order of pud and pmd_free()

2009-09-22T14:17:45Z

If pmd_alloc() fails we should only free the prior allocated pud, if pte_alloc_map() fails, we should free pmd as well. Signed-off-by: Roel Kluin Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds