Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: Allocate sufficient space for GMU registers In commit 142639a52a01 “drm/msm/a6xx: fix crashstate capture for A650”, we changed a6xxgetgmuregisters to read 3 sets of registers. Unfortunately, we did not change the...

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

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/hns: Fixed the use of spinunlockirqrestore, which is called with IRQs enabled. Fixed incorrect use of spinlockirq/spinunlockirq when spinlockirqsave/spinlockirqrestore was held. This issue was discovered through lock...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disabling Intel PT virtualization guest/host mode is enabled by default under CONFIGBROKEN. This means that KVM’s ptmode module parameter is set to BROKEN by default, thereby disabling support for virtualizing Intel PT...

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

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: sr – fixed possible use-after-free and nullptrderef issues. The pernet operations structure for the subsystem must be registered before registering the generic netlink family...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Rapidio: fixed a possible UAF Use-after-Allocation when kfifoalloc fails. If kfifoalloc fails in mportcdevopen, it jumps to errfifo and simply frees priv. However, priv is still in chdev-filelist, and traversing the list may lead...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: “Revert ‘sched/fair: Make sure to try to detach at least one movable task’” This change is reflected in commit b0defa7ae03ecf91b8bfd10ede430cff12fcbd06. The patch b0defa7ae03ec changed the load balancing logic to ignore env.maxlo...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A null pointer check was added in modhdcphdcp1createsession. The function modhdcphdcp1createsession calls the function getfirstactivedisplay, but does not check its return value. The return value is a null pointe...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: “aoe”: avoided potential deadlock at setcapacity. setcapacity has been moved outside of the section handled by &d-lock. This prevents possible unsafe locking scenarios due to interrupts. Here’s the sequence of events: 1...

Astra Linux – Vulnerability in Linux

A issue was discovered in the Linux kernel through version 5.9.1, as used with Xen up to version 4.14.x. The file drivers/xen/events/eventsbase.c allows for the removal of event channels during the event-handling loop a race condition. This can lead to a use-after-free or NULL pointer...

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

In the Linux kernel, the following vulnerabilities have been resolved: pppasync: Limit MRU to 64K. The syzbot triggered a warning 1 in allocpages: WARNONONCEGFP order MAXPAGEORDER, gfp. Willem fixed a similar issue in the commit c0a2a1b0d631 “ppp: limit MRU to 64K”. Apply the same sanity check fo...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: posix-clock: The missing timespec64 check in pcclocksettime has been fixed. As Andrew pointed out, it makes sense that the PTP core checks the tvsec and tvnsec fields of the timespec64 structure before calling ptp-info-settime64...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: rapidio: Replace riofreenet with kfree in rioscanallocnet. When the idtab allocation fails, the network is not yet registered with rioaddnet. Therefore, calling kfreenet is sufficient to release the memory. Set mport-net to NULL ...

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

In the Linux kernel, the following vulnerability has been resolved: nilfs2: Handling of inconsistent states in nilfsbtnodecreateblock. Syzbot reported that an inconsistency in the buffer state was detected in nilfsbtnodecreateblock, which triggered a kernel bug. It is not appropriate to consider...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: scsi: zorro7xx: A resource leak was fixed in the zorro7xxremoveone function. The error-handling code of the probe releases a resource that is not actually freed within the remove function. In some cases, the ioremap operation mus...

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

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fixed a potential bug in endbufferasyncwrite According to a syzbot report, endbufferasyncwrite, which handles the completion of block device writes, may detect abnormal conditions of the asyncwrite flag and cause a BUGON...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mlxbfgige: Stop interface during shutdown The mlxbfgige driver intermittently encounters a NULL pointer exception when the system is shutting down via the “reboot” command. The mlxbfdriver will experience an exception immediately...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: USB: wdm: the race between wdmopen and wdmwwanportstop has been eliminated. Clearing WDMWWANINUSE must be the last action; otherwise, we may open a device whose URBs User-Role-Based Services are still compromised...

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

In the Linux kernel, the following vulnerability has been resolved: serial: 8250omap: Implementation of Errata i2310 According to Errata i23100, an erroneous timeout can be triggered if this erroneous interrupt is not cleared. This could lead to a surge in interrupts. Therefore, the Errata i2310...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: mtkdrmcrtc: Added checks for devmkcalloc. Since devmkcalloc may return NULL, the return value needs to be checked to avoid dereferencing a NULL pointer...

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

In the Linux kernel, the following vulnerability has been resolved: RDMA/mad: Improved handling of time-out WRs for mad agents. The current timeout handler for mad agents acquires/releases the madagentpriv lock for every time-out WR. This causes heavy locking contention when multiple WRs need to ...