freebsd-nq/sys/compat
Konstantin Belousov 00d17cf342 elf_note_prpsinfo: handle more failures from proc_getargv()
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
2022-08-09 15:44:45 -04:00
..
freebsd32 Implement shared page address randomization 2022-07-18 16:27:37 +02:00
ia32 Retire sv_transtrap 2022-05-20 14:54:03 +03:00
lindebugfs lindebugfs: The Linux file operations use negative return values in the kernel. 2022-03-11 17:41:33 +01:00
linprocfs linprocfs: Decode SGX CPU feature in cpuinfo 2022-06-29 10:37:52 +03:00
linsysfs linsysfs: plug set-but-not-used vars. 2022-03-31 23:49:26 +03:00
linux elf_note_prpsinfo: handle more failures from proc_getargv() 2022-08-09 15:44:45 -04:00
linuxkpi/common linuxkpi: io.h: Only exclude armv6 and armv7 for asm/set_memory.h 2022-08-08 20:22:44 +02:00
x86bios Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00