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s390 CVE-2016-2143 whitelist for RHEL kernels

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Summary: This patch adds whitelist for RHEL6 and RHEL7 kernels that are known to have the CVE fixed.

Reviewers: koriakin, kcc

Reviewed By: kcc

Subscribers: kubamracek

Differential Revision: https://reviews.llvm.org/D29825

llvm-svn: 294799
This commit is contained in:
Kostya Serebryany 2017-02-10 22:50:44 +00:00
parent 3bc2e08429
commit 4b3ea2d776
1 changed files with 24 additions and 0 deletions
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24
compiler-rt/lib/sanitizer_common/sanitizer_linux_s390.cc
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@ -136,6 +136,18 @@ static bool FixedCVE_2016_2143() {
if (ptr[0] == '.')
patch = internal_simple_strtoll(ptr+1, &ptr, 10);
if (major < 3) {
if (major == 2 && minor == 6 && patch == 32 && ptr[0] == '-' &&
internal_strstr(ptr, ".el6")) {
// Check RHEL6
int r1 = internal_simple_strtoll(ptr+1, &ptr, 10);
if (r1 >= 657) // 2.6.32-657.el6 or later
return true;
if (r1 == 642 && ptr[0] == '.') {
int r2 = internal_simple_strtoll(ptr+1, &ptr, 10);
if (r2 >= 9) // 2.6.32-642.9.1.el6 or later
return true;
}
}
// <3.0 is bad.
return false;
} else if (major == 3) {
@ -145,6 +157,18 @@ static bool FixedCVE_2016_2143() {
// 3.12.58+ is OK.
if (minor == 12 && patch >= 58)
return true;
if (minor == 10 && patch == 0 && ptr[0] == '-' &&
internal_strstr(ptr, ".el7")) {
// Check RHEL7
int r1 = internal_simple_strtoll(ptr+1, &ptr, 10);
if (r1 >= 426) // 3.10.0-426.el7 or later
return true;
if (r1 == 327 && ptr[0] == '.') {
int r2 = internal_simple_strtoll(ptr+1, &ptr, 10);
if (r2 >= 27) // 3.10.0-327.27.1.el7 or later
return true;
}
}
// Otherwise, bad.
return false;
} else if (major == 4) {