Segfault in gpg --update-trustdb
Closed, ResolvedPublic


On gnupg-2.1.12, gpg --update-trustdb result in a segfault. gnupg-2.1.11 work
fine on my keyring. Unfortunately I was not able to reproduce on a new keyring

Architecture used: Arch Linux
libgcrypt: 1.7.0 (same results with libgcrypt 1.6.5)

I've attached a gdb session containing the bug and basic debugging information

I've run a git bisect, using '''./ && ./configure
--enable-maintainer-mode --enable-symcryptrun --prefix=/tmp/gnupg && make &&
make install && /tmp/gnupg/bin/gpg2 --update-trustdb''' to check the status.
Results are:
% git bisect log

git bisect start

bad: [00df5b1236cac5c7a48638a4613278c5aab486f8] Release 2.1.12

git bisect bad 00df5b1236cac5c7a48638a4613278c5aab486f8

good: [e9e5e83ec14459c2fc9060c54fc8e7381b541acd] Release 2.1.11

git bisect good e9e5e83ec14459c2fc9060c54fc8e7381b541acd

bad: [7a32f87cccddb40521bfdd4eb2d0dc9c88fb3fe5] scd: Bug fix for a device with

multiple interfaces.
git bisect bad 7a32f87cccddb40521bfdd4eb2d0dc9c88fb3fe5

bad: [b0125ae9850973b89010517b1dbce04125a51d51] common/exechelp: Fix pipe

git bisect bad b0125ae9850973b89010517b1dbce04125a51d51

good: [86f3bb144ad75461eb9b7ac1e59046ac75efccac] g13: Require a confirmation

before g13 is used for DM-Crypt.
git bisect good 86f3bb144ad75461eb9b7ac1e59046ac75efccac

good: [44b02e1beb4f38f26551d932827d5317fddd27c2] w32: Do not error out if

gpgconf is not installed.
git bisect good 44b02e1beb4f38f26551d932827d5317fddd27c2

good: [10671c3a4c18ea26035a5819a9f2b8fd6c7e41ea] gpg: Use format_keyid rather

than manually formatting the keyid.
git bisect good 10671c3a4c18ea26035a5819a9f2b8fd6c7e41ea

bad: [44cdb9d73f1a0b7d2c8483a119b9c4d6caabc1ec] gpg: Split check_key_signature2.

git bisect bad 44cdb9d73f1a0b7d2c8483a119b9c4d6caabc1ec

good: [5fbd80579aea0f75ca1d2700515c5b8747a75c7d] gpg: Split

git bisect good 5fbd80579aea0f75ca1d2700515c5b8747a75c7d

first bad commit: [44cdb9d73f1a0b7d2c8483a119b9c4d6caabc1ec] gpg: Split



Feandil set Version to 2.1.12.
Feandil added a subscriber: Feandil.

Include trace.log

gniibe added a subscriber: gniibe.May 11 2016, 12:12 PM

Thank you for the report and your cooperation.
At least, this fix is needed.

This patch seems to solve the segfault for me, thanks!

gniibe closed this task as Resolved.May 11 2016, 12:41 PM
gniibe claimed this task.
gniibe added a project: Unreleased.