This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- trusty' to 'verification-done-trusty'. If the problem still exists, change the tag 'verification-needed-trusty' to 'verification-failed- trusty'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-trusty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1789131 Title: Probable regression with EXT3 file systems and CVE-2018-1093 patches Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: Fix Committed Bug description: == SRU Justification == Mainline commit 7dac4a1726a9 introduced a regression in v4.17-rc1, which made it's way into Trusty via upstream stable updates. This regression is resolved by mainline commit 22be37acce25. This commit has been cc'd to upstream stable, but has not made it's way into Trusty as of yet. == Fix == 22be37acce25 ("ext4: fix bitmap position validation") == Regression Potential == Low. This commit has been cc'd to upstream stable, so it has had additional upstream review. == Test Case == A test kernel was built with this patch and tested by the original bug reporter. The bug reporter states the test kernel resolved the bug. A customer reported on all of their ext3 and none of their ext4 systems that the file system was in read-only mode, I believe after rebooting into 3.13.0-157.207 from 3.13.0-156.206. Here is the output of tune2fs -l for one of the file systems: tune2fs 1.42.12 (29-Aug-2014) Last mounted on: / Filesystem UUID: 748f503a-443d-4769-8dd2-45ff46b48555 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_file Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean with errors Errors behavior: Continue Filesystem OS type: Linux Inode count: 1966080 Block count: 7863296 Reserved block count: 393164 Free blocks: 4568472 Free inodes: 1440187 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 1022 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 RAID stride: 128 RAID stripe width: 512 Filesystem created: Thu Feb 25 21:54:24 2016 Last mount time: Fri Aug 24 07:40:51 2018 Last write time: Fri Aug 24 07:40:51 2018 Mount count: 1 Maximum mount count: 25 Last checked: Fri Aug 24 07:38:54 2018 Check interval: 15552000 (6 months) Next check after: Wed Feb 20 07:38:54 2019 Lifetime writes: 7381 GB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: d6564a54-cd2a-4804-ad94-1e4e0e47933a Journal backup: inode blocks FS Error count: 210 First error time: Fri Aug 24 07:40:51 2018 First error function: ext4_validate_block_bitmap First error line #: 376 First error inode #: 0 First error block #: 0 Last error time: Sun Aug 26 19:35:16 2018 Last error function: ext4_remount Last error line #: 4833 Last error inode #: 0 Last error block #: 0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1789131/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
