UBUNTU-CVE-2022-49075

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix qgroup reserve overflow the qgroup limit We use extentchangeset-byteschanged in qgroupreservedata to record how many bytes we set for EXTENTQGROUPRESERVED state. Currently the byteschanged is set as "unsigned int", and...

UBUNTU-CVE-2022-49068

In the Linux kernel, the following vulnerability has been resolved: btrfs: release correct delalloc amount in direct IO write path Running generic/406 causes the following WARNING in btrfsdestroyinode which tells there are outstanding extents left. In btrfsgetblocksdirectwrite, we reserve a...

CVE-2022-49702

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix hang during unmount when block group reclaim task is running When we start an unmount, at closectree, if we have the reclaim task running and in the middle of a data block group relocation, we can trigger a deadlock wh...

CVE-2022-49702 btrfs: fix hang during unmount when block group reclaim task is running

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix hang during unmount when block group reclaim task is running When we start an unmount, at closectree, if we have the reclaim task running and in the middle of a data block group relocation, we can trigger a deadlock wh...

CVE-2022-49702 btrfs: fix hang during unmount when block group reclaim task is running

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix hang during unmount when block group reclaim task is running When we start an unmount, at closectree, if we have the reclaim task running and in the middle of a data block group relocation, we can trigger a deadlock wh...

CVE-2022-49702

Summary: CVE-2022-49702 concerns a deadlock in Linux kernel when unmounting a filesystem with an async block group reclaim task relocating data. Multiple reclaim tasks (block-group, metadata/data) can interact with a parked cleaner thread, leading to a hang during close_ctree()/unmount due to del...

CVE-2022-49547 btrfs: fix deadlock between concurrent dio writes when low on free data space

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between concurrent dio writes when low on free data space When reserving data space for a direct IO write we can end up deadlocking if we have multiple tasks attempting a write to the same file range, there ar...

CVE-2022-49547

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between concurrent dio writes when low on free data space When reserving data space for a direct IO write we can end up deadlocking if we have multiple tasks attempting a write to the same file range, there ar...

CVE-2022-49547 btrfs: fix deadlock between concurrent dio writes when low on free data space

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between concurrent dio writes when low on free data space When reserving data space for a direct IO write we can end up deadlocking if we have multiple tasks attempting a write to the same file range, there ar...

CVE-2022-49547

CVE-2022-49547 relates to a Linux kernel issue in btrfs where deadlocks can occur when reserving data space for direct IO writes under low free space. The deadlock involves concurrent writes to overlapping file ranges ([0,128K) and [128K,256K)) contending for the inode lock and for ordered extent...

CVE-2022-49547 btrfs: fix deadlock between concurrent dio writes when low on free data space

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock between concurrent dio writes when low on free data space When reserving data space for a direct IO write we can end up deadlocking if we have multiple tasks attempting a write to the same file range, there ar...

CVE-2022-49469

CVE-2022-49469 is a Linux kernel issue affecting the btrfs subsystem. The vulnerability arises in create_subvol() where, on failures of btrfs_qgroup_inherit(), btrfs_alloc_tree_block, or btrfs_insert_root(), anon_dev could leak because error handling did not free it. The fix reorganizes the error...

CVE-2022-49469

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix anondev leak in createsubvol When btrfsqgroupinherit, btrfsalloctreeblock, or btrfsinsertroot fail in createsubvol, we return without freeing anondev. Reorganize the error handling in createsubvol to fix this...

CVE-2022-49469 btrfs: fix anon_dev leak in create_subvol()

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix anondev leak in createsubvol When btrfsqgroupinherit, btrfsalloctreeblock, or btrfsinsertroot fail in createsubvol, we return without freeing anondev. Reorganize the error handling in createsubvol to fix this...

CVE-2022-49168

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bioendio on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs...

CVE-2022-49167

CVE-2022-49167 – Linux kernel (btrfs) double bio endio in compressed reads : The vulnerability stems from btrfs_submit_compressed_read() sometimes neglecting to call bio_endio() on error when compression bios are not created, leaving a race with btrfs_submit_data_bio() that may also end the bio. ...

CVE-2022-49167 btrfs: do not double complete bio on errors during compressed reads

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not double complete bio on errors during compressed reads I hit some weird panics while fixing up the error handling from btrfslookupbiosums. Turns out the compression path will complete the bio we use if we set up any ...

CVE-2022-49168 btrfs: do not clean up repair bio if submit fails

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bioendio on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs...

CVE-2022-49167 btrfs: do not double complete bio on errors during compressed reads

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not double complete bio on errors during compressed reads I hit some weird panics while fixing up the error handling from btrfslookupbiosums. Turns out the compression path will complete the bio we use if we set up any ...

CVE-2022-49168 btrfs: do not clean up repair bio if submit fails

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bioendio on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs...