similar to: Possible problems with sharing an ocfs2 filesystem using NFS

On 5/23/23 5:33 PM, Lu?s Henriques wrote: > It's trivial to trigger a use-after-free bug in the ocfs2 quotas code using > fstest generic/452. After a read-only remount, quotas are suspended and > ocfs2_mem_dqinfo is freed through ->ocfs2_local_free_info(). When unmounting > the filesystem, an UAF access to the oinfo will eventually cause a crash. > > BUG: KASAN:

Sorry all, forgot to hit reply-all. ---------- Forwarded Message ---------- Subject: Re: [Ocfs2-users] Determining which version of ocfs2 tools a filesystem was created with. Date: Thursday 17 February 2011, 12:33:36 From: Mikey Austin <mikey at mikeyaustin.com> To: Sunil Mushran <sunil.mushran at oracle.com> On Wednesday 09 February 2011 11:40:01 you wrote: > On 02/07/2011

This is a note to let you know that I've just added the patch titled ocfs2: fix use-after-free when unmounting read-only filesystem to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch and it can be found in

This is a note to let you know that I've just added the patch titled ocfs2: fix use-after-free when unmounting read-only filesystem to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch and it can be found in

This is a note to let you know that I've just added the patch titled ocfs2: fix use-after-free when unmounting read-only filesystem to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch and it can be found in

This is a note to let you know that I've just added the patch titled ocfs2: fix use-after-free when unmounting read-only filesystem to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch and it can be found in

This is a note to let you know that I've just added the patch titled ocfs2: fix use-after-free when unmounting read-only filesystem to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch and it can be found in

This is a note to let you know that I've just added the patch titled ocfs2: fix use-after-free when unmounting read-only filesystem to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch and it can be found in

This is a note to let you know that I've just added the patch titled ocfs2: fix use-after-free when unmounting read-only filesystem to the 6.3-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch and it can be found in

Hi Andrew, There is an updated version v2, which describe more clearly about the case: https://lore.kernel.org/ocfs2-devel/e9fc4b2f-1fcc-7c31-f346-59eccff50f9b at linux.alibaba.com/T/#u Thanks, Joseph On 5/26/23 4:55 AM, Andrew Morton wrote: > The patch titled > Subject: ocfs2: fix use-after-free when unmounting read-only filesystem > has been added to the -mm mm-hotfixes-unstable

All, This is a heads up only for users exporting OCFS2 volumes as NFS mounts. If not, please disregard this email. Recently there was a bugzilla filed that mentioned observing file system lockups when accessing OCFS2 exported volumes with FreeBSD NFS clients. The lockups were not observed by him with Linux NFS clients. http://oss.oracle.com/bugzilla/show_bug.cgi?id=977 Analysis showed that the

All, This is a heads up only for users exporting OCFS2 volumes as NFS mounts. If not, please disregard this email. Recently there was a bugzilla filed that mentioned observing file system lockups when accessing OCFS2 exported volumes with FreeBSD NFS clients. The lockups were not observed by him with Linux NFS clients. http://oss.oracle.com/bugzilla/show_bug.cgi?id=977 Analysis showed that the

It's trivial to trigger a use-after-free bug in the ocfs2 quotas code using fstest generic/452. After a read-only remount, quotas are suspended and ocfs2_mem_dqinfo is freed through ->ocfs2_local_free_info(). When unmounting the filesystem, an UAF access to the oinfo will eventually cause a crash. BUG: KASAN: slab-use-after-free in timer_delete+0x54/0xc0 Read of size 8 at addr

On Fri, 26 May 2023 09:36:25 +0800 Joseph Qi <joseph.qi at linux.alibaba.com> wrote: > Hi Andrew, > > There is an updated version v2, which describe more clearly about the > case: > https://lore.kernel.org/ocfs2-devel/e9fc4b2f-1fcc-7c31-f346-59eccff50f9b at linux.alibaba.com/T/#u Sigh. Thanks. As you can see from the above link, the email never hit ocfs2-devel and never

The lock type string for NFS Sync lock is missing from the last patch http://oss.oracle.com/pipermail/ocfs2-devel/2009-March/004117.html This patch is to add the lock type string. This patch also applies to 1.4 git. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- diff --git a/fs/ocfs2/ocfs2_lockid.h b/fs/ocfs2/ocfs2_lockid.h index a53ce87..e95cc7b 100644 ---

Hello friends, I've got a strange problem with my cluster-setup. I've got two nodes called www1 and www2 running Ubuntu Linux 8.10. The have a 50G volume which is replicated in primary/primary mode with DRBD. On this volume there is an OCSF2 filesystem with this two nodes. Everything is working really fine, files are perfectly mirrored, really nice. On one of the

The patch titled Subject: ocfs2: fix use-after-free when unmounting read-only filesystem has been added to the -mm mm-hotfixes-unstable branch. Its filename is ocfs2-fix-use-after-free-when-unmounting-read-only-filesystem.patch This patch will shortly appear at

Hi, When attempting to restore to LINUX RHEL5 - OCFS2 filesystem received the following error during RMAN restore for nearly all of the datafiles attempted to restore with exception of a couple of smaller datafiles which were smaller < 2GB. ORA-19870: error reading backup piece /db/dumps/TR1_1/rmanbackup/TR1_88_1 ORA-19502: write error on file "/db/devices/db1/PR2/pr2_1/pr2.data1",

Hi Experts, Can we resize OCFS2 filesystem ? Thanks, Savitha

I have two Debian VM's on VMSphere that both have 40GB drives for the underlying OS. The 2nd VM has an additional disk that is configured as "Thick Provisioned Eager Zeroed" I have configured the VMs to share this disk. This works without errors. When I fdisk -l I can see the shared volume or disk on both Debian servers. I have installed OCFS2 and can restart both O2CB without