Fangrui Song 60592fb6b6 coredump, vmcore: Set p_align to 4 for PT_NOTE ...

Tools like readelf/llvm-readelf use p_align to parse a PT_NOTE program
header as an array of 4-byte entries or 8-byte entries. Currently, there
are workarounds[1] in place for Linux to treat p_align==0 as 4. However,
it would be more appropriate to set the correct alignment so that tools
do not have to rely on guesswork. FreeBSD coredumps set p_align to 4 as
well.

[1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=82ed9683ec099d8205dc499ac84febc975235af6
[2]: https://reviews.llvm.org/D150022

Signed-off-by: Fangrui Song <maskray@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230512022528.3430327-1-maskray@google.com

2023-05-16 14:32:00 -07:00

..

array.c

Merge tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-04-28 09:43:49 -07:00

base.c

Merge tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-04-27 19:57:00 -07:00

bootconfig.c

proc: bootconfig: Add null pointer check

2022-04-02 08:40:09 -04:00

cmdline.c

proc: mark /proc/cmdline as permanent

2023-02-02 22:50:02 -08:00

consoles.c

proc: consoles: use console_list_lock for list iteration

2022-12-02 11:25:02 +01:00

cpuinfo.c

x86/aperfmperf: Replace aperfmperf_get_khz()

2022-04-27 20:22:19 +02:00

devices.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

fd.c

Merge tag 'fs.idmapped.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

2023-02-20 11:53:11 -08:00

fd.h

fs: port ->permission() to pass mnt_idmap

2023-01-19 09:24:28 +01:00

generic.c

proc: remove mark_inode_dirty() in .setattr()

2023-04-08 13:45:36 -07:00

inode.c

take care to handle NULL ->proc_lseek()

2022-08-14 15:16:18 -04:00

internal.h

fs: port ->getattr() to pass mnt_idmap

2023-01-19 09:24:25 +01:00

interrupts.c

…

Kconfig

proc: make config PROC_CHILDREN depend on PROC_FS

2022-10-03 14:21:43 -07:00

kcore.c

mm: vmalloc: convert vread() to vread_iter()

2023-04-05 19:42:57 -07:00

kmsg.c

Merge tag 'printk-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

2022-10-10 11:24:19 -07:00

loadavg.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

Makefile

proc: bootconfig: Add /proc/bootconfig to show boot config list

2020-01-13 13:19:39 -05:00

meminfo.c

mm/memtest: add results of early memtest to /proc/meminfo

2023-04-05 19:42:55 -07:00

namespaces.c

Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2020-01-29 11:20:24 -08:00

nommu.c

proc: delete unused <linux/uaccess.h> includes

2022-07-17 17:31:39 -07:00

page.c

mm, pagemap: remove SLOB and SLQB from comments and documentation

2023-03-29 10:32:11 +02:00

proc_net.c

fs: port ->getattr() to pass mnt_idmap

2023-01-19 09:24:25 +01:00

proc_sysctl.c

sysctl: remove register_sysctl_paths()

2023-05-02 19:24:16 -07:00

proc_tty.c

proc: delete unused <linux/uaccess.h> includes

2022-07-17 17:31:39 -07:00

root.c

fs: port ->getattr() to pass mnt_idmap

2023-01-19 09:24:25 +01:00

self.c

Revert "proc: don't allow async path resolution of /proc/self components"

2021-02-23 20:32:11 -07:00

softirqs.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

stat.c

proc/stat: remove arch_idle_time()

2023-04-18 16:39:33 -07:00

task_mmu.c

Merge tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-04-28 09:43:49 -07:00

task_nommu.c

mm/nommu: factor out check for NOMMU shared mappings into is_nommu_shared_mapping()

2023-01-18 17:12:56 -08:00

thread_self.c

Revert "proc: don't allow async path resolution of /proc/thread-self components"

2021-02-23 20:32:11 -07:00

uptime.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

util.c

fs/proc/util.c: include fs/proc/internal.h for name_to_int()

2019-01-04 13:13:45 -08:00

version.c

proc: mark more files as permanent

2022-10-03 14:21:45 -07:00

vmcore.c

coredump, vmcore: Set p_align to 4 for PT_NOTE

2023-05-16 14:32:00 -07:00