]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
coredump: add a new elf note with siginfo of the signal
authorDenys Vlasenko <vda.linux@googlemail.com>
Fri, 5 Oct 2012 00:15:35 +0000 (17:15 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 5 Oct 2012 18:05:16 +0000 (03:05 +0900)
commit49ae4d4b113be03dc4a2ec5f2a1f573ff0fcddb3
tree5c172a0ef5cbf57abf969bc13b0a4e3b4c50aefd
parent751f409db6216ebd134a94f6dcd97779933a5106
coredump: add a new elf note with siginfo of the signal

Existing PRSTATUS note contains only si_signo, si_code, si_errno fields
from the siginfo of the signal which caused core to be dumped.

There are tools which try to analyze crashes for possible security
implications, and they want to use, among other data, si_addr field from
the SIGSEGV.

This patch adds a new elf note, NT_SIGINFO, which contains the complete
siginfo_t of the signal which killed the process.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: Amerigo Wang <amwang@redhat.com>
Cc: "Jonathan M. Foote" <jmfoote@cert.org>
Cc: Roland McGrath <roland@hack.frob.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/binfmt_elf.c
fs/compat_binfmt_elf.c
include/linux/elf.h