Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed the memory ordering between normal and ordered work functions. Ordered work functions are not guaranteed to be handled by the same thread that executes the normal work functions. The only way to synchronize...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed invalid inode pointer dereferences during log replay. In a few places where we call readoneinode, if we receive a NULL pointer, we end up entering an error path. This issue also occurs in cases where add inoderef is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Zoned – Cloning zoned device info when cloning a device When cloning a btrfsdevice, we are not cloning the associated btrfszoneddeviceinfo structure of the device, especially in cases where the filesystem is zoned. This ca...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: fixed a race condition between the async reclaim worker and closectree Syzbot reported an assertion failure due to an attempt to add a delayed iput after setting BTRFSFSSTATENODELAYEDIPUT in the fsinfo state: WARNING:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix lock ordering in btrfszoneactivate The btrfs CI reported a lockdep warning as follows when running generic/129. WARNING: A circular locking dependency was detected. 6.7.0-rc5+ 1 Not tainted...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed the issue where a new block group that becomes unused after creation could lead to a use-after-free condition. If a task creates a new block group and that block group becomes unused before it is fully created, durin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a use-after-free on the inode when scanning the root during em shrinking. In the function btrfsscanroot, we access the root of the inode along with fsinfo through a call to btrfsfsclosing. After scheduling the inode...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Protect folio::private when attaching an extent buffer for folios BUG Since version 6.8, several people have reported rare kernel crashes. The common cause is incorrect page status error messages like this: BUG: Incorrect...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Ensure that pages are unlocked in case of a failure in cowfilerange. There is a hangtask report for zoned btrfs as follows: https://github.com/naota/linux/issues/59 726.328648 INFO: Task rocksdb:high0:11085 blocked for...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: The reloc control parameter is not set if the transaction commit fails in preparetorelocate. In btrfsrelocateblockgroup, the rc parameter is allocated. Then, btrfsrelocateblockgroup calls relocateblockgroup, which calls...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed the “use-after-free” warning in btrfsgetorcreatedelayednode. Previously, btrfsgetorcreatedelayednode set the refcount of delayednode before acquiring the root-delayednodes lock. The commit e8513c012de7 “btrfs:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an incorrect match in devargsmatchdevice. Syzkaller discovered a failed assertion: “Assertion failed: args-devid != u64-1 || args-missing”, in fs/btrfs/volumes.c:6921. This issue can occur when we set devid to u64-1...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed an issue where the qgroup reserve overflowed the qgroup limit. We use extentchangeset-byteschanged in qgroupreservedata to record how many bytes are set for the EXTENTQGROUPRESERVED state. Currently, byteschanged is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed an assertion issue when starting the balance operation. The use of “exclusive” status for balance operations is compatible with paused balance and device addition. However, this complicates certain situations. The...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a chunk map leak in btrfsmapblock after btrfschunkmapnumcopies. Fixed a chunk map leak in btrfsmapblock: if we return early with -EINVAL, we are not freeing the chunk map that we just looked up...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a race condition when deleting the free space root from the “dirty cow roots” list. When deleting the free space tree, we are deleting the free space root from the list fsinfo-dirtycowonlyroots, without locking it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: The release path occurs before igetfailed in btrfsreadlocked inode. In btrfsreadlocked inode, if we fail to look up the inode, we jump to the ‘out’ label with a path that has a read-locked leaf. Then, we call igetfailed...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: In the zone operation, the code must traverse devices under the chunkmutex in btrfscanactivatezone. The btrfscanactivatezone function can be called with the devicelistmutex already held, which could lead to a deadlock. ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Zoneed: Do not flag “ZEROOUT” on non-dirty extent buffers. Btrfs clears the content of an extent buffer marked as EXTENTBUFFERZONEDZEROOUT before the bio submission. This mechanism is introduced to prevent a write hole ...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a deadlock between the quota disable process and the qgroup rescan worker process. The quota disable ioctl initiates a transaction before waiting for the qgroup rescan worker to complete. However, this wait can be...