Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Change AMDGPUVARESERVEDTRAPSIZE to 64KB Currently, AMDGPUVARESERVEDTRAPSIZE is hardcoded to 8KB, while KFDCWSRTBATMASIZE is defined as 2 PAGESIZE. On systems with 4K pages, both values match 8KB, so allocation and...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: f2fs: Fixed a kernel crash that occurred due to a null io-bio. We should return immediately if io-bio is null before performing any actions. Otherwise, a panic will occur. BUG: Kernel NULL pointer dereferencing, address:...

Astra Linux – Vulnerability in Linux, Linux 5.10

A flaw was discovered in the Linux kernel’s KVM when attempting to set the SynIC IRQ. This issue allows a malfunctioning VMM to write to the SYNIC/STIMER MSRs, leading to a NULL pointer derefrence error. This flaw enables an unprivileged local attacker on the host to issue specific ioctl calls,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: use rcu-safe version of ipv6getlladdr Some time ago, 8965779d2c0e "ipv6,mcast: always hold idev-lock before mcalock" switched ipv6getlladdr to ipv6getlladdr, which is a rcu-unsafe version. This was acceptable, as...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: loop: Fixed use-after-free issues The doreqfilebacked function calls blkmqcompleterequest synchronously or asynchronously when using asynchronous I/O, unless memory allocation fails. Therefore, modify loophandlecmd so that it...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: hns3: Fixed a kernel crash that occurred when devlink reloaded during pf initialization. The devlink reloading process will access hardware resources, but the register operations are performed before the hardware is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Disables all pin interrupts during probing The chip being probed may have the interrupt-on-change feature enabled on some of its pins, for example after a reboot. This can cause the chip to generate interrupts...

Astra Linux – Vulnerability in Linux

A out-of-bounds memory read flaw was discovered in the Qualcomm IPC router protocol within the Linux kernel. A missing sanity check allows a local attacker to gain access to out-of-bounds memory, resulting in a system crash or the leakage of internal kernel information. The greatest threat posed ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A NULL pointer dereference issue was discovered in the gfs2 file system within the Linux kernel. This issue occurs in corrupted gfs2 file systems when the evict code attempts to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could explo...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Correct group validation in ext4mbgoodgroup. The group corruption check will access memory related to the grp structure. This can lead to a kernel crash if grp is set to NULL. Therefore, perform a NULL check before the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: xen/netback: Avoid entering xenvifrxnextskb with an empty rx queue. xenvifrxnextskb expects the rx queue not to be empty. However, if the loop in xenvifrxaction performs multiple iterations, the availability of another skb in the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: mvneta: fix calls to pagepoolgetstats Calling pagepoolgetstats in the mvneta driver without proper checks leads to kernel crashes. Firstly, the page pool is only available if the bm is not being used. The page pool is also n...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: The code correctly moves the list within scdisable. Commit 13bac861952a “IB/hfi1: Fix the abba locking issue with scdisable”. However, the code incorrectly attempts to move a list from one list head to another. As a...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: A bug has been fixed in ext4mbreleasegrouppa. If a malicious fuzzer overwrites the ext4 superblock while it is mounted, causing sfirstdatablock to be set to a very large number, the calculation of the block group may...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: vsp1: Replace vb2isstreaming with vb2startstreamingcalled. The vsp1 driver uses the vb2isstreaming function in its .bufqueue handler to check whether the .startstreaming operation has been called. It then decides whether t...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: vdpa/vpvdpa: fixed an issue where the wrong pointer was passed as an argument to vpvdparemove. In vpvdparemove, the code kfree&vpvdpamgtdev-mgtdev.idtable uses a reference to a pointer as an argument to kfree. This is a wrong...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: mmc: omaphsmmc: fixed the return value check in mmcaddhost The mmcaddhost function may return an error. If we ignore its return value, it will cause two issues: 1. The memory allocated in mmcallochost may be leaked. 2. In the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Create the ttmresourcemanager entry in debugfs only if necessary. The driver creates /sys/kernel/debug/dri/0/mobttm even when the corresponding ttmresourcemanager is not allocated. This leads to a crash when trying to...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: cxl/pmem: Fixed race conditions related to nvdimm registration. A loop of the form: c while true; do modprobe cxlpci; modprobe -r cxlpci; done …fails with the following crash message: BUG: Kernel NULL pointer dereference, address...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: idpf: Fixed a NULL pointer crash that occurred during early ethtool operations. The RSS LUT is not initialized until the interface becomes active. This caused a NULL pointer crash when ethtool operations like rxhash were...