obj-$(CONFIG_IP_DCCP) += dccp.o dccp_ipv4.o dccp-y := ccid.o feat.o input.o minisocks.o options.o output.o proto.o timer.o \ qpolicy.o # # CCID algorithms to be used by dccp.ko # # CCID-2 is default (RFC 4340, p. 77) and has Ack Vectors as dependency dccp-y += ccids/ccid2.o ackvec.o dccp-$(CONFIG_IP_DCCP_CCID3) += ccids/ccid3.o dccp-$(CONFIG_IP_DCCP_TFRC_LIB) += ccids/lib/tfrc.o \ ccids/lib/tfrc_equation.o \ ccids/lib/packet_history.o \ ccids/lib/loss_interval.o dccp_ipv4-y := ipv4.o # build dccp_ipv6 as module whenever either IPv6 or DCCP is a module obj-$(subst y,$(CONFIG_IP_DCCP),$(CONFIG_IPV6)) += dccp_ipv6.o dccp_ipv6-y := ipv6.o obj-$(CONFIG_INET_DCCP_DIAG) += dccp_diag.o obj-$(CONFIG_NET_DCCPPROBE) += dccp_probe.o dccp-$(CONFIG_SYSCTL) += sysctl.o dccp_diag-y := diag.o dccp_probe-y := probe.o linux/net-next.git/'>net-next.git
net-next plumbingsTobias Klauser
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authorJosh Poimboeuf <jpoimboe@redhat.com>2016-05-16 15:16:18 -0500
committerHerbert Xu <herbert@gondor.apana.org.au>2016-05-17 14:26:52 +0800
commit4a6b27b79da5ccc6b85dc05bbe6a091e58be896a (patch)
tree3b6c2e16d410844d288165218e62c037cb0e8ca3 /Documentation
parent256b1cfb9a346bb4808cd27b7b8f9b120f96491e (diff)
crypto: sha1-mb - make sha1_x8_avx2() conform to C function ABI
Megha Dey reported a kernel panic in crypto code. The problem is that sha1_x8_avx2() clobbers registers r12-r15 without saving and restoring them. Before commit aec4d0e301f1 ("x86/asm/crypto: Simplify stack usage in sha-mb functions"), those registers were saved and restored by the callers of the function. I removed them with that commit because I didn't realize sha1_x8_avx2() clobbered them. Fix the potential undefined behavior associated with clobbering the registers and make the behavior less surprising by changing the registers to be callee saved/restored to conform with the C function call ABI. Also, rdx (aka RSP_SAVE) doesn't need to be saved: I verified that none of the callers rely on it being saved, and it's not a callee-saved register in the C ABI. Fixes: aec4d0e301f1 ("x86/asm/crypto: Simplify stack usage in sha-mb functions") Cc: stable@vger.kernel.org # 4.6 Reported-by: Megha Dey <megha.dey@linux.intel.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation')