Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: idpf: fixed the PREEMPTRT raw/bh spinlock nesting issue for async VC handling The code has been changed to use a local lock instead of the raw spinlock provided by the completion structure in the idpfvcxn struct. This conversion ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Holding the reservation lock around madvise Acquiring and releasing the GEM object’s reservation lock during calls to the object’s madvide operation. The tests use drmgemshmemmadviselocked, which caused errors...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: lapbether: ignore ops-locked netdevs Syzkaller managed to trigger a lock dependency in xsknotify via registernetdevice. As discussed in 0, using registernetdevice in notifiers is problematic, so we skip adding the lapbeth fo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: It is now possible to use hdev-workqueue when scheduling hdev-cmd,ncmdtimer. The syzbot is reporting an attempt to schedule the hdev-cmdwork task from systemwq to hdev-workqueue WQ, which is currently in a draining...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: The issue where inline data checks might be performed during dio write operations has been fixed. According to syzbot, the following warning from ext4iomapbegin is triggered as of the referenced commit: c if...

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 in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/MADVCOLLAPSE: handling !none !huge !bad pmd lookups In commit 34488399fa08 “mm/madvise: adding file and shmem support to MADVCOLLAPSE”, we made the following change to findpmdorthpornone: – if !pmdpresentpmde return...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fixed a deadlock in contextxa. The variable ivpudevice-contextxa is locked both in the kernel thread and in the IRQ context. This requires the XAFLAGSLOCKIRQ flag to be passed during initialization. Otherwise, the loc...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btnxpuart: Resolved TX timeout error in power save stress test This fix addresses the TX timeout issue observed during a stress test on btnxpuart for several hours. As a result, the interval between two HCI commands...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: Synchronize atomic write aborts To address the race condition between atomic write aborts, I use the inode lock and ensure that the COW inode can be reused throughout the entire lifetime of the atomic file inode...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: Fixed a race condition in nfslocalopenfh. Once the clp-cluuid.lock is dropped, another CPU may come in and free the struct nfsdfile that was just added. To prevent this from happening, take the RCU read lock before...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: cgroup, freezer: Hold cpuhotpluglock before freezermutex. syzbot reports a circular locking dependency between cpuhotpluglock and freezermutex. To address this issue, commit f5d39b020809 “freezer,sched: Rewrite core freezer...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “hungtask”: fixed warnings caused by unaligned lock pointers. The blocker tracking mechanism assumes that lock pointers are at least 4-byte aligned, so that their lower bits can be used for type encoding. However, as reported by...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: hibmcge: fixed the RTNL deadlock issue Currently, the hibmcge netdev acquires the RTNL lock in pcierrorhandlers.resetprepare and releases it in pcierrorhandlers.resetdone. However, in the PCI framework: pciresetbus -...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: kernfs: a potential NULL dereference occurred in kernfsremove. When lockdep is enabled, lockdepassertheldwrite could cause a potential NULL pointer dereference. The following smatch warnings have also been fixed:...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iavf: Remove the “crit lock” mechanism. This removal frees us from the error-prone logic associated with trylocks. Thanks to netdevlock by Jakub, this has become easier to implement. In most cases, we were already protected by th...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: BTRFS: Do not attempt to replace the rwsem on a task that already holds it. By running fstests btrfs/011 with MKFSOPTIONS="-O rst" to force the use of the RAID stripe-tree, we obtain the following error from lockdep: BTRFS inf...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: phylink: Added a lock to serialize concurrent writes to pl-phydev using phylinkresolve. Currently, phylinkresolve protects itself against concurrent calls to phylinkbringupPhyio or phylinkdisconnectPhyio that modify pl-phyde...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: erofs: Fixed the issue where xasretry was missing in the fscache mode. The xarray iteration only holds the RCU read lock; therefore, an XARETRYENTRY may be encountered if a process modifies the xarray concurrently. This would lea...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: Initialize gfntopfncache locks in dedicated helper Move the gfntopfncache lock initialization to another helper and call the new helper during VM/vCPU creation. There are race conditions possible due to kvmgfntopfncacheinit’...