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authorDavid S. Miller <davem@davemloft.net>2016-08-18 01:17:32 -0400
committerDavid S. Miller <davem@davemloft.net>2016-08-18 01:17:32 -0400
commit60747ef4d173c2747bf7f0377fb22846cb422195 (patch)
treeea0faf33b952495c47909be1400c475a3f3821b0 /arch/x86/entry/vdso/vdso2c.h
parent484334198f8ce9552e20930fff9408ebf6bcf94d (diff)
parent184ca823481c99dadd7d946e5afd4bb921eab30d (diff)
downloadtalos-obmc-linux-60747ef4d173c2747bf7f0377fb22846cb422195.tar.gz
talos-obmc-linux-60747ef4d173c2747bf7f0377fb22846cb422195.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor overlapping changes for both merge conflicts. Resolution work done by Stephen Rothwell was used as a reference. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/x86/entry/vdso/vdso2c.h')
-rw-r--r--arch/x86/entry/vdso/vdso2c.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h
index 63a03bb91497..4f741192846d 100644
--- a/arch/x86/entry/vdso/vdso2c.h
+++ b/arch/x86/entry/vdso/vdso2c.h
@@ -22,6 +22,9 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
ELF(Phdr) *pt = (ELF(Phdr) *)(raw_addr + GET_LE(&hdr->e_phoff));
+ if (hdr->e_type != ET_DYN)
+ fail("input is not a shared object\n");
+
/* Walk the segment table. */
for (i = 0; i < GET_LE(&hdr->e_phnum); i++) {
if (GET_LE(&pt[i].p_type) == PT_LOAD) {
@@ -49,6 +52,9 @@ static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
if (stripped_len < load_size)
fail("stripped input is too short\n");
+ if (!dyn)
+ fail("input has no PT_DYNAMIC section -- your toolchain is buggy\n");
+
/* Walk the dynamic table */
for (i = 0; dyn + i < dyn_end &&
GET_LE(&dyn[i].d_tag) != DT_NULL; i++) {
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