Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciconn: Fixed a potential Universal Arbitrary Fault UAF in setcigparamssync. The lookup of hciconn and field access must be protected by the hdev lock in setcigparamssync. Otherwise, it’s possible that these...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - xfs: scrub: Unlock dquot before an early return in quota scrub. - xchkquotaitem: Can return early after calling xchkfblockprocesserror. If this helper returns false, the function returns immediately without dropping dq-qqloc...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed a potential deadlock in CPU hotplug with osnoise. The following sequence may lead to a deadlock in CPU hotplug: task1 task2 task3 ----- ----- ----- The code sequence is as follows: mutexlock&interfacelock CPU GOING...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: idpf: Detaching and closing netdevs while handling a reset Protect the reset path from callbacks by setting the netdevs to detached state and closing any netdevs in UP state until the reset handling is completed. During a reset,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fixed a hard lockup issue when reading the rxmonitor from debugfs. During I/O operations and simultaneous reads of /sys/kernel/debug/lpfc/fnX/rxmonitor, a hard lockup similar to the call trace below may occur. The...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: SMB3: Added missing locks to protect the deferred close file list. The cifsdeldeferredclose function has a critical section that modifies the deferred close file list. We must acquire the deferredlock before calling the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: The queuelock must be held when removing blkg-qnode. When blkg is removed from q-blkglist in the blkgfreeworkfn function, the queuelock must be held. Otherwise, various bugs such as list corruption, hard lockups, etc...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: can: j1939: prevents deadlock by moving j1939skerrqueue This commit addresses a deadlock situation that can occur in certain scenarios, such as when running data TP/ETP transfers and subscribing to the error queue while...

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: devlink: The region-snapshotlock was not held during snapshot flushing. Netdevsim triggers a segmentation fault when reloading, especially when destroying regions with snapshots pending: WARNING: CPU: 1 PID: 787 at...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939netdevstart: fixed a UAF Use-After-Free condition related to rxkref of j1939priv. This issue would trigger a UAF for rxkref of j1939priv as follows: cpu0 cpu1 j1939skBindsocket0, ndev0, … j1939netdevStart...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fixed the cleanup flow for mlx5eprivinit. When mlx5eprivinit fails, the cleanup flow calls mlx5eselqcleanup, which in turn calls mlx5eselqapply. This ensures that priv-statelock is held using lockdepisheld. The statelo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: macsec: sync features on RTMNEWLINK Syzkaller was able to lock the lower device via ETHTOOLSFEATURES: - netdevlock, include/linux/netdevice.h: 2761 inline - netdevops, include/net/netdevlock.h: 42 inline -...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ubi: Fixed the UAF Use-After-Free issue in the wear-leveling entry of eraseblkcountseqshow. The wear-leveling entry could be freed during an error-prone path, and this entry might be accessed again in eraseblkcountseqshow, for...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: llc: Makes llcuisendmsg more robust against changes related to bonding. syzbot was able to exploit llcuisendmsg, allocating a skb without sufficient headroom, and then attempting to append 14 bytes of Ethernet header information...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: uio: Fixed a use-after-free in uioopen. core-1 core-2 ------------------------------------------------------- uiounregisterdevice uioopen idev = idrfind deviceunregister&idev-dev putdevice&idev-dev uiodevicerelease...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: ice: Fixed the LAG and VF lock dependencies in iceresetvf. The commit fixes the issue where the ice driver acquires the LAG mutex during iceresetvf. This lock acquisition is placed just before acquiring the VF configuration...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fixed a race condition in SNDCTLDSPSYNC There is a small race condition in the sndpcmosssync function, which is called from OSS PCM SNDCTLDSPSYNC ioctl. Specifically, the function calls sndpcmossmakeready first, a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dma-debug: Do not call dmaentryalloccheckleak under freeentrieslock. dmaentryalloccheckleak calls into printk, which outputs to the serial console qcom geni. It also acquires port-lock under freeentrieslock. This involves a rever...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: eth: alx: takes rtnllock when resuming. Zbynek reports that alx fails an RTNL assertion when resuming. RTNL: The assertion failed at net/core/dev.c 2891. RIP: 0010: netifsetrealnumtxqueues + 0x1ac/0x1c0. Call Trace: alxopen +...