Hello community,
here is the log from the commit of package crash for openSUSE:Factory checked
in at 2020-09-12 00:13:43
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Comparing /work/SRC/openSUSE:Factory/crash (Old)
and /work/SRC/openSUSE:Factory/.crash.new.4249 (New)
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Package is "crash"
Sat Sep 12 00:13:43 2020 rev:165 rq:833827 version:7.2.8
Changes:
--------
--- /work/SRC/openSUSE:Factory/crash/crash.changes 2020-09-06
00:02:58.259270923 +0200
+++ /work/SRC/openSUSE:Factory/.crash.new.4249/crash.changes 2020-09-12
00:14:36.601334562 +0200
@@ -1,0 +2,12 @@
+Wed Sep 9 16:45:44 UTC 2020 - David Mair <dm...@suse.com>
+
+- Add crash-verify-exception-frame-accessible-for-all-verify-requests.patch
+ In calls to search a stack for x86_64 exceptions a flag is used
+ to request the stack be verified for room to contain saved
+ registers. The verify is not performed if other flags are used
+ in the same call. Fixing this exposes another bug where only a
+ kernel stack is verified anyway, even if the exception is being
+ searched for on a userspace stack. Patch fixes both problems.
+ (bsc#1162297)
+
+-------------------------------------------------------------------
New:
----
crash-verify-exception-frame-accessible-for-all-verify-requests.patch
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Other differences:
------------------
++++++ crash.spec ++++++
--- /var/tmp/diff_new_pack.tCU0ll/_old 2020-09-12 00:14:38.877336740 +0200
+++ /var/tmp/diff_new_pack.tCU0ll/_new 2020-09-12 00:14:38.877336740 +0200
@@ -81,6 +81,7 @@
Patch27: %{name}-Define-fallback-PN_XNUM.patch
Patch28: %{name}-fix-memory_driver-build-kernel-5.8.patch
Patch29: eppic-remove-duplicate-symbols.patch
+Patch30:
%{name}-verify-exception-frame-accessible-for-all-verify-requests.patch
Patch90: %{name}-sial-ps-2.6.29.diff
BuildRequires: bison
BuildRequires: flex
@@ -277,6 +278,7 @@
%patch26 -p1
%patch27 -p1
%patch28 -p1
+%patch30 -p1
%if %{have_snappy}
%patch15 -p1
%endif
++++++ crash-verify-exception-frame-accessible-for-all-verify-requests.patch
++++++
Index: b/x86_64.c
===================================================================
--- a/x86_64.c
+++ b/x86_64.c
@@ -4386,15 +4386,20 @@ x86_64_exception_frame(ulong flags, ulon
long r8, r9, r10, r11, r12, r13, r14, r15;
struct machine_specific *ms;
struct syment *sp;
- ulong offset;
+ ulong offset, verify_addr;
char *pt_regs_buf;
long verified;
long err;
char buf[BUFSIZE];
- if (flags == EFRAME_VERIFY) {
- if (!accessible(kvaddr) ||
- !accessible(kvaddr + SIZE(pt_regs) - sizeof(long)))
+ if (flags & EFRAME_VERIFY) {
+ if (kvaddr)
+ verify_addr = kvaddr;
+ else
+ verify_addr = (local - bt->stackbuf) + bt->stackbase;
+
+ if (!accessible(verify_addr) ||
+ !accessible(verify_addr + SIZE(pt_regs) - sizeof(long)))
return FALSE;
}
