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a363e1d4d0
freebsd-dev/sys
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Mark Johnston a363e1d4d0 iflib: Fix handling of mbuf cluster allocation failures. 
When refilling an rx freelist, make sure we only update the hardware
producer index if at least one cluster was allocated.  Otherwise the
NIC is programmed to write a previously used cluster, typically
resulting in a use-after-free when packet data is written by the
hardware.

Also make sure that we don't update the fragment index cursor if the
last allocation attempt didn't succeed.  For at least Intel drivers,
iflib assumes that the consumer index and fragment index cursor stay in
lockstep, but this assumption was violated in the face of cluster
allocation failures.

Reported and tested by:	pho
Reviewed by:	gallatin, hselasky
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D25489
2020-07-06 14:52:09 +00:00
..
amd64 Rerun kernel ifunc resolvers after all CPUs have started 2020-07-05 14:38:22 +00:00
arm Add a driver for bcm2838 PCI express controller 2020-07-06 08:51:55 +00:00
arm64 Rerun kernel ifunc resolvers after all CPUs have started 2020-07-05 14:38:22 +00:00
bsm bsm: add AUE_CLOSERANGE 2020-04-24 01:27:25 +00:00
cam Use the more descriptive src_ccb and dst_ccb for the two ccbs being merged. 2020-06-20 04:07:23 +00:00
cddl Fix page fault in zfsctl_snapdir_getattr 2020-07-02 13:17:31 +00:00
compat Fix include file order in io.h in the LinuxKPI. 2020-07-05 19:38:36 +00:00
conf Add a driver for bcm2838 PCI express controller 2020-07-06 08:51:55 +00:00
contrib Rename nvpair.c to bsd_nvpair.c to not conflict with openzfs' version. 2020-06-27 00:55:03 +00:00
crypto Add domain policy allocation for amd64 fpu_kern_ctx 2020-07-03 14:54:46 +00:00
ddb [PowerPC] More relocation fixes 2020-06-21 03:39:26 +00:00
dev Add a driver for bcm2838 PCI express controller 2020-07-06 08:51:55 +00:00
dts Remove licenses 2020-06-04 17:20:58 +00:00
fs Add support for ext_pgs mbufs to nfsm_strtom(). 2020-07-05 21:55:16 +00:00
gdb Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
geom geom(4): Kill GEOM_PART_EBR_COMPAT option 2020-07-01 02:16:36 +00:00
gnu dts: patch the am33xx dts for upcoming clock support 2020-06-05 20:14:54 +00:00
i386 geom(4): Kill GEOM_PART_EBR_COMPAT option 2020-07-01 02:16:36 +00:00
isa
kern vfs: expand on vhold_smr comment 2020-07-06 02:00:35 +00:00
kgssapi Add support for optional separate output buffers to in-kernel crypto. 2020-05-25 22:12:04 +00:00
libkern libkern: Add arc4random_uniform 2020-05-23 17:51:06 +00:00
mips Add dwc_otg_acpi 2020-06-30 15:58:29 +00:00
modules Add i.MX 8M Quad support 2020-07-01 00:33:16 +00:00
net iflib: Fix handling of mbuf cluster allocation failures. 2020-07-06 14:52:09 +00:00
net80211 [net80211] Commit files missing in the previous commit 2020-07-01 00:24:55 +00:00
netgraph Allow some Bluetooth LE related HCI request to non-root user. 2020-07-01 04:00:54 +00:00
netinet Complete conversions from fib<4|6>_lookup_nh_<basic|ext> to fib<4|6>_lookup(). 2020-07-02 21:04:08 +00:00
netinet6 Fix IPv6 regression introduced by r362900. 2020-07-03 08:06:26 +00:00
netipsec Simplify IPsec transform-specific teardown. 2020-06-25 23:59:16 +00:00
netpfil Complete conversions from fib<4|6>_lookup_nh_<basic|ext> to fib<4|6>_lookup(). 2020-07-02 21:04:08 +00:00
netsmb Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
nfs Use epoch(9) for rtentries to simplify control plane operations. 2020-05-23 10:21:02 +00:00
nfsclient
nfsserver
nlm Fix export_args ex_flags field so that is 64bits, the same as mnt_flags. 2020-06-14 00:10:18 +00:00
ofed Infiniband clients must be attached and detached in a specific order in ibcore. 2020-07-06 08:50:11 +00:00
opencrypto Convert cryptostats to a counter_u64 array. 2020-06-30 22:01:21 +00:00
powerpc [PowerPC] More relocation fixes 2020-06-21 03:39:26 +00:00
riscv riscv pmap: zero reserved pte bits in ppn 2020-07-01 19:15:43 +00:00
rpc Fix up a comment added by r362455. 2020-06-21 02:49:56 +00:00
security audit: provide AUDITING_TD for !AUDIT case 2020-07-04 06:21:20 +00:00
sys Rerun kernel ifunc resolvers after all CPUs have started 2020-07-05 14:38:22 +00:00
teken
tests Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
tools vfs: stop null checking routines in vop wrappers 2020-01-26 00:41:38 +00:00
ufs The binary representation of the superblock (the fs structure) is written 2020-06-19 01:04:25 +00:00
vm vm: Add missing WITNESS warnings for M_WAITOK allocation 2020-06-29 16:54:00 +00:00
x86 Assume all TSCs are synchronized for AMD Family 17h processors and later 2020-06-22 20:42:58 +00:00
xdr Split XDR into separate kernel module. Make krpc depend on xdr. 2020-04-17 06:04:20 +00:00
xen Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (16 of many) 2020-02-25 19:04:39 +00:00
Makefile Remove sparc64 kernel support 2020-02-03 17:35:11 +00:00