freebsd-nq/sys
Ryan Stone 7d309e8e40 Fix reference to free memory in ixgbe/if_media.c
When ixgbe receives an interrupt indicating that a new optical module
may have been inserted, it discards all of its current media types
by calling ifmedia_removeall() and then creates a new set of media
types for the supported media on the new module.  However,
ifmedia_removeall() was maintaining a pointer to whatever the
current media type was before the call to ifmedia_removealL().
The result of this was that any attempt to read the current media
type of the interface (e.g. via ifconfig) would return potentially
garbage data from free memory (or if one were particularly unlucky
on an architecture that does not malloc() from a direct map, page
fault the kernel).

Fix this by NULL'ing out the current media field in if_media.c,
and have ixgbe update the current media type after recreating
them.

Submitted by:	Matt Joras <matt.joras AT gmail DOT com>
Reviewed by:	sbruno, erj
MFC after:	1 week
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D9164
2017-01-20 17:16:48 +00:00
..
amd64 vmm_dev: work around a bogus error with gcc 6.3.0 2017-01-20 13:21:27 +00:00
arm Handle the set capabilities ioctl, letting the hardware checksum be 2017-01-19 14:58:55 +00:00
arm64 Catch up with changes to structure member names. 2017-01-17 22:05:52 +00:00
boot Remove empty ranges property so beri_simplebus can be attached again. 2017-01-18 14:41:59 +00:00
bsm
cam Remove writing 'residual' field of struct ctl_scsiio. 2017-01-17 18:32:47 +00:00
cddl MFV 312436 2017-01-20 15:01:04 +00:00
compat Catch up with changes to structure member names. 2017-01-17 22:05:52 +00:00
conf mppc - Finish pluging NETGRAPH_MPPC_COMPRESSION. 2017-01-20 00:02:11 +00:00
contrib Merge ACPICA 20170119. 2017-01-19 22:07:21 +00:00
crypto libmd: add noexec stack annotation in skein_block_asm.s 2017-01-07 19:26:25 +00:00
ddb Revert r311952. 2017-01-14 22:06:25 +00:00
dev Fix reference to free memory in ixgbe/if_media.c 2017-01-20 17:16:48 +00:00
fs Remove mistakenly merged field. 2017-01-19 20:03:26 +00:00
gdb
geom Report disk addition errors on add or create subcommand. 2017-01-20 13:49:04 +00:00
gnu Add Ingenic X1000 DTS files (unofficial). 2016-11-19 15:03:49 +00:00
i386 Catch up with changes to structure member names. 2017-01-17 22:05:52 +00:00
isa
kern ANSYfy kern_ktrace.c and remove archaic register keyword 2017-01-20 14:59:56 +00:00
kgssapi
libkern libkern: Remove obsolete 'register' keyword 2017-01-12 17:02:29 +00:00
mips [ar71xx] add EARLY_PRINTF support for the rest of the non-AR933x SoCs. 2017-01-15 06:35:00 +00:00
modules Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones 2017-01-20 05:45:07 +00:00
net Fix reference to free memory in ixgbe/if_media.c 2017-01-20 17:16:48 +00:00
net80211 [net80211] allow for MCS16-23 to be statically configured. 2017-01-20 07:43:40 +00:00
netgraph mppc - Finish pluging NETGRAPH_MPPC_COMPRESSION. 2017-01-20 00:02:11 +00:00
netinet Implement kernel support for hardware rate limited sockets. 2017-01-18 13:31:17 +00:00
netinet6 Implement kernel support for hardware rate limited sockets. 2017-01-18 13:31:17 +00:00
netipsec Add direction argument to ipsec_setspidx_inpcb() function. 2017-01-08 12:40:07 +00:00
netnatm
netpfil Initialize IPFW static rules rmlock with RM_RECURSE flag. 2017-01-17 10:50:28 +00:00
netsmb
nfs
nfsclient
nfsserver
nlm
ofed Move the ConnectX-3 and ConnectX-2 driver from sys/ofed into sys/dev/mlx4 2016-09-30 08:23:06 +00:00
opencrypto Add support for the fpu_kern(9) KPI on arm64. It hooks into the existing 2016-10-20 09:22:10 +00:00
pc98 Add a COMPAT_FREEBSD11 kernel option. 2016-12-09 18:54:12 +00:00
powerpc Use the explicit expanded form of cmp. 2017-01-18 03:42:21 +00:00
riscv Disable superpages reservations as we don't have implemented them yet. 2016-11-21 12:00:31 +00:00
rpc
security Audit 'fd' and 'cmd' arguments to fcntl(2), and when generating BSM, 2016-11-22 00:41:24 +00:00
sparc64 Trim a few comments on platforms that did not implement mmap of /dev/kmem. 2017-01-13 21:52:53 +00:00
sys Addition of clang nullability qualifiers. 2017-01-20 15:56:40 +00:00
teken
tests
tools Replace using of objdump with elfdump 2017-01-10 18:46:40 +00:00
ufs ffs_vnops: Simplify extattr access 2017-01-19 16:46:05 +00:00
vm Avoid unnecessary page lookups in vm_object_madvise(). 2017-01-15 03:50:08 +00:00
x86 "Buses" is the preferred plural of "bus" 2017-01-15 17:54:01 +00:00
xdr
xen "Buses" is the preferred plural of "bus" 2017-01-15 17:54:01 +00:00
Makefile