Re: [Bug 1789131] Re: Probable regression with EXT3 file systems and CVE-2018-1093 patches
On 08/28/2018 09:49 AM, Joseph Salisbury wrote: > This is probably the fix: > 22be37acce25 ext4: fix bitmap position validation > > I built a test kernel with commit 22be37acce25. The test kernel can be > downloaded from: > http://kernel.ubuntu.com/~jsalisbury/lp1789131 > > Can you test this kernel and see if it resolves this bug? Yes, it does. Out of curiosity, how do you think this was missed originally? It's in the 3.16 LTS tree. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1789131 Title: Probable regression with EXT3 file systems and CVE-2018-1093 patches To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1789131/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1789131] Re: Probable regression with EXT3 file systems and CVE-2018-1093 patches
On 08/27/2018 01:21 PM, Joseph Salisbury wrote: > Does 3.13.0-157.207 exhibit the bug and 3.13.0-156.206 does not? If > that is the case, we can perform a bisect to identify the offending > commit. That is correct. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1789131 Title: Probable regression with EXT3 file systems and CVE-2018-1093 patches To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1789131/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1789131] Re: Probable regression with EXT3 file systems and CVE-2018-1093 patches
On 08/27/2018 11:16 AM, Joseph Salisbury wrote: > The specific version to test is 3.13.0-158. > No, that doesn't fix it. root@scratch2:~# uname -a Linux scratch2 3.13.0-158-generic #208-Ubuntu SMP Fri Aug 24 17:07:38 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux root@scratch2:~# dmesg | grep mount [2.353820] EXT4-fs (xvda1): mounting ext3 file system using the ext4 subsystem [2.386459] EXT4-fs (xvda1): mounted filesystem with ordered data mode. Opts: barrier=0 [5.922761] EXT4-fs (xvda1): re-mounted. Opts: errors=remount-ro,barrier=0 [6.049433] EXT4-fs error (device xvda1): ext4_validate_block_bitmap:376: comm mountall: bg 72: block 2369024: invalid block bitmap [6.051556] EXT4-fs (xvda1): Remounting filesystem read-only -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1789131 Title: Probable regression with EXT3 file systems and CVE-2018-1093 patches To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1789131/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
