freebsd-nq/sys
Mark Johnston 55248d32f2 Fix handling of invalid pages in exec_map_first_page().
exec_map_first_page() would unconditionally free an unbacked, invalid
page from the executable image.  However, it is possible that the page
is wired, in which case it is incorrect to free the page, so check for
additional wirings first.

Reported by:	syzkaller
Tested by:	pho
Reviewed by:	kib
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21767
2019-09-26 15:35:35 +00:00
..
amd64 amd64 pmap: Clarify largemap bootverbose message units 2019-09-26 01:51:55 +00:00
arm Complete the removal of the "wire_count" field from struct vm_page. 2019-09-25 16:11:35 +00:00
arm64 sysent: regenerate after r352693 2019-09-25 17:30:28 +00:00
bsm
cam Add kern.cam.da.X.quirks tunable, similar existing for ada. 2019-09-26 14:48:39 +00:00
cddl Implement x86 dtrace_invop_(un)init() in C. 2019-09-23 15:08:17 +00:00
compat Add an shm_rename syscall 2019-09-26 15:32:28 +00:00
conf Add debugging facility EPOCH_TRACE that checks that epochs entered are 2019-09-25 18:26:31 +00:00
contrib ipf mistakenly regards UDP packets with a checksum of 0xffff as bad. 2019-09-26 03:09:42 +00:00
crypto Stop using des_cblock * for arguments to DES functions. 2019-08-26 17:25:07 +00:00
ddb ddb(4): Add some support for lexing IPv6 addresses 2019-09-09 16:32:23 +00:00
dev vt: use proper return value check with TUNABLE_INT_FETCH 2019-09-26 07:14:54 +00:00
dts dtso: allwinner: Add an overlay for H3 thermal node 2019-08-24 13:26:34 +00:00
fs Replace all mtx_assert() calls for n_mtx and ncl_iod_mutex with macros. 2019-09-26 02:54:45 +00:00
gdb gdb(4): Root a sysctl tree at 'debug.gdb.' 2019-09-08 22:52:47 +00:00
geom Add a "count_until_fail" option to gnop, which says to start failing 2019-09-13 23:03:56 +00:00
gnu arm: dts: am33xx: Fix the region for uart0 2019-08-07 13:11:53 +00:00
i386 sysent: regenerate after r352693 2019-09-25 17:30:28 +00:00
isa
kern Fix handling of invalid pages in exec_map_first_page(). 2019-09-26 15:35:35 +00:00
kgssapi Stop using des_cblock * for arguments to DES functions. 2019-08-26 17:25:07 +00:00
libkern Remove zlib 1.0.4 from kernel. 2019-08-25 17:13:00 +00:00
mips Complete the removal of the "wire_count" field from struct vm_page. 2019-09-25 16:11:35 +00:00
modules This commit adds BBR (Bottleneck Bandwidth and RTT) congestion control. This 2019-09-24 18:18:11 +00:00
net style(9): remove extraneous empty lines 2019-09-25 20:46:09 +00:00
net80211 Enhance the comment ieee80211_add_channel() to avoid a 2019-06-10 14:31:18 +00:00
netgraph avoid holding PCB mutex during copyin/copyout() 2019-08-30 16:35:31 +00:00
netinet Add new functionality to switch to using cookies exclusively when we the 2019-09-26 15:18:57 +00:00
netinet6 When processing an incoming IPv6 packet over the loopback interface which 2019-09-19 10:22:29 +00:00
netipsec Fix broken window replay check that will allow old packet to be accepted. 2019-09-06 14:30:23 +00:00
netpfil Drivers may pass runt packets to filter. This is okay. 2019-09-13 22:36:04 +00:00
netsmb Stop using des_cblock * for arguments to DES functions. 2019-08-26 17:25:07 +00:00
nfs
nfsclient
nfsserver
nlm
ofed OFED: Fix accidental double-copy of rdma_sdp.h in r351176 2019-08-18 04:19:41 +00:00
opencrypto Adjust the deprecated warnings for /dev/crypto to be less noisy. 2019-08-27 21:29:37 +00:00
powerpc Complete the removal of the "wire_count" field from struct vm_page. 2019-09-25 16:11:35 +00:00
riscv Fix some broken relocation handling 2019-09-26 00:58:47 +00:00
rpc Avoid relying on header pollution from sys/refcount.h. 2019-07-29 20:26:01 +00:00
security vm_map_simplify_entry considers merging an entry with its two 2019-08-25 07:06:51 +00:00
sparc64 Revert r352406, which contained changes I didn't intend to commit. 2019-09-16 15:04:45 +00:00
sys Add an shm_rename syscall 2019-09-26 15:32:28 +00:00
teken Adjust teken to allow build as part of loader 2019-09-05 18:07:40 +00:00
tests
tools fw_stub.awk: use @generated tag in generated files 2019-09-11 13:35:22 +00:00
ufs vfs: convert struct mount counters to per-cpu 2019-09-16 21:37:47 +00:00
vm Add some counters for per-VM page events. 2019-09-25 17:08:35 +00:00
x86 Complete the removal of the "wire_count" field from struct vm_page. 2019-09-25 16:11:35 +00:00
xdr
xen
Makefile