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KAMEZAWA Hiroyuki 341c87bf34 elf: limit max map count to safe value ... With ELF, at generating coredump, some more headers other than used vmas are added. When max_map_count == 65536, a core generated by following kinds of code can be unreadable because the number of ELF's program header is written in 16bit in Ehdr (please see elf.h) and the number overflows. == ... = mmap(); (munmap, mprotect, etc...) if (failed) abort(); == This can happen in mmap/munmap/mprotect/etc...which calls split_vma(). I think 65536 is not safe as _default_ and reduce it to 65530 is good for avoiding unexpected corrupted core. Anyway, max_map_count can be enlarged by sysctl if a user is brave.. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Jakub Jelinek <jakub@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		16 years ago
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acpi	Merge branch 'bjorn-notify' into release	16 years ago
asm-generic	alpha: fix percpu build breakage	16 years ago
crypto	…
drm	drm: Fix shifts which were miscalculated when converting from bitfields.	16 years ago
keys	…
linux	elf: limit max map count to safe value	16 years ago
math-emu	…
media	V4L/DVB (11901): v4l2: Create helper function for bounding and aligning images	16 years ago
mtd	…
net	Phonet: publicize the Netlink notification function	16 years ago
pcmcia	…
rdma	…
rxrpc	…
scsi	sd, sr: fix Driver 'sd' needs updating message	16 years ago
sound	…
trace	ext4: convert instrumentation from markers to tracepoints	16 years ago
video	fbdev: s1d13xxxfb: add accelerated bitblt functions	16 years ago
xen	…
Kbuild	…