Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not trim a device which is not writeable BUG There is a bug report that btrfs/242 can randomly fail with the following NULL pointer dereference: run fstests btrfs/242 at 2026-06-01 10:25:08 BTRFS: device fsid...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: HID: picolcd: preventing NULL pointer dereferencing in picolcdsendandwait In picolcdsendandwait, an integer overflow of the signed loop counter ‘k’ could theoretically lead to a NULL pointer dereferencing of ‘rawdata’. If the loo...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: afs: Fixed a NULL pointer dereference in afagettree. afsallocsbi uses kzalloc for memory allocation. If ctx-dynroot is not null, as-cell and as-volume will be null. In traceafsgettree, these values are dereferenced. KASAN erro...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbcon: Fixed the issue of NULL pointer dereferencing for a console without vcdata. The function fbconnewmodelist is called when the modelist of a framebuffer changes. For each console mapped to it using fbdisplayi.mode, it reads...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nbd: The function genlunregisterfamily is called first in nbdcleanup. Otherwise, there may be a race between the removal of the module and the handling of the netlink command, which can lead to an oops as shown below: BUG: Kernel...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: libceph: A potential nullptrderef issue has been prevented in cephhandleauthreply. If a message of type CEPHMSGAUTHREPLY contains a zero value for both protocol and result, this is currently not treated as an error. When...

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

In the Linux kernel, the following vulnerability has been resolved: xfrm: added a NULL check in xfrmupdateaeparams Normally, x-replayesn and x-preplayesn should be allocated in xfrmallocreplaystateesn…, hence xfrmupdateaeparams… can update them. However, the current implementation of xfrmnewae…...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tty: serial: pchuart: added a check for dmaalloccoherent A check for a failure with dmaalloccoherent has been added to prevent a potential NULL pointer dereferencing in dmahandlerx. Properly release DMA channels and the reference...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Drivers: vmbus: Check for channel allocation before looking up relid. relid2channel assumes that the vmbus channel array is already allocated when it is called. However, in situations like kdump/kexec, not all relids will be rese...

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

In the Linux kernel, the following vulnerability has been resolved: Media: Platform: MediTech: VPU: Fix for NULL pointer dereferencing If pdev is NULL, it is still dereferenced. This fixes the “match warning” in the following file: drivers/media/platform/mediatek/vpu/mtkvpu.c:570 – vpuloadfirmwar...

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: backlight: pm8941: Add a NULL check in wledconfigure. The devmkasprintf function returns NULL when memory allocation fails. Currently, wledconfigure does not check for this case, resulting in a NULL pointer being dereferenced. Ad...

Astra Linux – Vulnerability in Harfbuzz

HarfBuzz is a text shaping engine. Prior to version 12.3.0, there was a null pointer dereference vulnerability in the SubtableUnicodesCache::create function located in src/hb-ot-cmap-table.hh. The function fails to check whether hbmalloc returns NULL before using placement new to construct an...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: qcom: q6apm: fixed a NULL pointer dereferencing in graphcallback. When q6apmfreefragments is called, it frees rxdata.buf/txdata.buf and sets them to NULL under graph-lock. A late DSP buffer-done response can cause issues...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fbdev: The fbnewmodelist function has been fixed to prevent a nullptrderef in fbvideomodetovar. info-var, which represents the current mode of a framebuffer, is expected to have a matching entry in info-modelist. The vartodisplay...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: dax: Reading daxdev-holderops once in daxholdernotifyfailure daxholdernotifyfailure reads daxdev-holderops twice without using READONCE. Once for the NULL check, and another time for the indirect notifyfailure call. A concurre...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net, bpf: A NULL check for the master parameter was missing in xdpmasterredirect. xdpmasterredirect dereferes the result of netdevmasterupperdevgetrcu without performing a NULL check. However, this helper function returns NULL wh...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: In hciuart, issues related to Use-After-Free UAF and Null Pointer Dereference NPD conditions were observed during the lifecycle management of hciuart. The primary issue arises because the workqueues initready and...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ipmi: Fixed a NULL pointer dereference after a failed registration. The trysmiinit function allocates newsmi-sism and subsequently calls ipmiregistersmimod, which corresponds to ipmiaddsmi. During ipmiaddsmi, the upper IPMI...

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: Bluetooth: hcildisc: Clearing HCIUARTPROTOINIT upon error When hciregisterdev fails in hciuartregisterdev, HCIUARTPROTOINIT is not cleared before calling hu-proto-closehu and setting hu-hdev to NULL. This means that incoming UART...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cpufreq: Fixed a race condition during reboot During system reboot, cpufreqsuspend is called via the kernelrestart - deviceshutdown path. Unlike the normal system suspend path, the reboot path does not call freezeprocesses, so...