Resulting sbuf_len() from proc_getargv() might return 0 if user mangled
ps_strings enough. Also, sbuf_len() API contract is to return -1 if the
buffer overflowed. The later should not occur because get_ps_strings()
checks for catenated length, but check for this subtle detail explicitly
as well to be more resilent.
The end result is that p_comm is used in this situations.
Approved by: so
Security: FreeBSD-SA-22:09.elf
Reported by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: delphij, markj
admbugs: 988
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35391
Drop some unnecessary includes from Linuxulator ptrace
and coredump code. No functional changes.
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D32925
Move the common kernel function signatures from machine/reg.h to a new
sys/reg.h. This is in preperation for adding PT_GETREGSET to ptrace(2).
Reviewed by: imp, markj
Sponsored by: DARPA, AFRL (original work)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19830
Implement dumping core for Linux binaries on amd64, for both
32- and 64-bit executables. Some bits are still missing.
This is based on a prototype by chuck@.
Reviewed By: kib
Sponsored By: EPSRC
Differential Revision: https://reviews.freebsd.org/D30019
