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-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to krb5 in Ubuntu. https://bugs.launchpad.net/bugs/1648901 Title: SPNEGO crash on mechanism failure Status in krb5 package in Ubuntu: Fix Released Status in krb5 source package in Xenial: Fix Committed Bug description: == SRU JUSTIFICATION == [Impact] * Chrome (and other things) crash (segfault) when Kerberos fails to authenticate. Thread 22 "Chrome_IOThread" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffdd687700 (LWP 14851)] spnego_gss_inquire_context (minor_status=0x7fffdd68573c, context_handle=0x0, src_name=0x7fffdd685670, targ_name=0x7fffdd685668, lifetime_rec=0x7fffdd685738, mech_type=0x7fffdd685660, ctx_flags=0x7fffdd685734, locally_initiated=0x7fffdd685730, opened=0x7fffdd68572c) at ../../../../src/lib/gssapi/spnego/spnego_mech.c:2315 2315 ../../../../src/lib/gssapi/spnego/spnego_mech.c: No such file or directory. (gdb) bt #0 spnego_gss_inquire_context (minor_status=0x7fffdd68573c, context_handle=0x0, src_name=0x7fffdd685670, targ_name=0x7fffdd685668, lifetime_rec=0x7fffdd685738, mech_type=0x7fffdd685660, ctx_flags=0x7fffdd685734, locally_initiated=0x7fffdd685730, opened=0x7fffdd68572c) at ../../../../src/lib/gssapi/spnego/spnego_mech.c:2315 #1 0x00007fffef72be54 in gss_inquire_context (minor_status=0x7fffdd68573c, context_handle=<optimized out>, src_name=0x7fffdd685788, targ_name=0x7fffdd685750, lifetime_rec=0x7fffdd685738, mech_type=0x7fffdd685780, ctx_flags=0x7fffdd685734, locally_initiated=0x7fffdd685730, opened=0x7fffdd68572c) at ../../../../src/lib/gssapi/mechglue/g_inq_context.c:114 * context_handle=0x0, segfault occurs trying to dereference a null pointer. [Test Case] * Reproducer See dwmw2's (reporter of the bug) comment #3 : https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1648901/comments/3 [Regression Potential] * none expected Y and Z release already has the krb5 upstream patch. * Debian has the patch as well. * A test package has been tested by more than 1 user with success (can't reproduce the crash) anymore) [Other Info] * Upstream fix : https://github.com/krb5/krb5/commit/3beb564cea3d219efcf71682b6576cad548c2d23 * Pull Request : https://github.com/krb5/krb5/pull/385 * Chrome Bug : https://bugs.chromium.org/p/chromium/issues/detail?id=554905 * A test pkg including the upstream commit has been proven to fix the crash. See: https://bugs.launchpad.net/ubuntu/xenial/+source/krb5/+bug/1648901/comments/9 == [Original Description] Chrome (and other things) crash when Kerberos fails to authenticate: https://bugs.chromium.org/p/chromium/issues/detail?id=554905 This was fixed in MIT krb5 in January: https://github.com/krb5/krb5/pull/385 Thread 22 "Chrome_IOThread" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffdd687700 (LWP 14851)] spnego_gss_inquire_context (minor_status=0x7fffdd68573c, context_handle=0x0, src_name=0x7fffdd685670, targ_name=0x7fffdd685668, lifetime_rec=0x7fffdd685738, mech_type=0x7fffdd685660, ctx_flags=0x7fffdd685734, locally_initiated=0x7fffdd685730, opened=0x7fffdd68572c) at ../../../../src/lib/gssapi/spnego/spnego_mech.c:2315 2315 ../../../../src/lib/gssapi/spnego/spnego_mech.c: No such file or directory. (gdb) bt #0 spnego_gss_inquire_context (minor_status=0x7fffdd68573c, context_handle=0x0, src_name=0x7fffdd685670, targ_name=0x7fffdd685668, lifetime_rec=0x7fffdd685738, mech_type=0x7fffdd685660, ctx_flags=0x7fffdd685734, locally_initiated=0x7fffdd685730, opened=0x7fffdd68572c) at ../../../../src/lib/gssapi/spnego/spnego_mech.c:2315 #1 0x00007fffef72be54 in gss_inquire_context (minor_status=0x7fffdd68573c, context_handle=<optimized out>, src_name=0x7fffdd685788, targ_name=0x7fffdd685750, lifetime_rec=0x7fffdd685738, mech_type=0x7fffdd685780, ctx_flags=0x7fffdd685734, locally_initiated=0x7fffdd685730, opened=0x7fffdd68572c) at ../../../../src/lib/gssapi/mechglue/g_inq_context.c:114 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/krb5/+bug/1648901/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
