Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: blk-iocost: Do not issue a warning if iocg was already offline. In iocgpaydebt, a warning is triggered if ‘activelist’ is empty. This is intended to confirm that iocg is active when it has debts. However, a warning can still be...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: dmaengine: idxd: The call with idxdcleanup helper has been removed from the refactoring process. The idxdcleanup helper is responsible for cleaning up operations related to perfmon, interrupts, internals, etc. The removal of...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ftcm: Do not free the command immediately Do not release the command prematurely. Wait for the status completion of the sense status. The command can then be released. Otherwise, we will perform a double-release of t...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: dm: Fixed unconditional IO throttling caused by REQPREFLUSH When a bio with REQPREFLUSH is submitted to dm, sendemptyFlush generates a flushbio with REQOPWRITE | REQPREFLUSH | REQSYNC, which causes the flushbio to be throttled by...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: corrected the order of the prelimref arguments in btrfsprelimref The btrfsprelimref function calls the old and new reference variables in the incorrect order. This causes a NULL pointer dereference because oldref is...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: rtomin/max: Avoid using current-nsproxy. As mentioned in a previous commit of this series, using the net structure via current is not recommended for various reasons: - Inconsistency: Obtaining information from the...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: return fail if interface is down in bnxtqueuememalloc The bnxtqueuememalloc function is called to allocate new queue memory when a queue is restarted. It internally accesses the rx buffer descriptor corresponding to th...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: vxlan: Fixed an uninitialized value in vxlanvnifilterdump. KMSAN reported an uninitialized value access in vxlanvnifilterdump. 1 If the length of the netlink message payload is less than sizeofstruct tunnelmsg,...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed an out-of-bounds read when checking .dotdot dir. Mounting a corrupted filesystem with a directory containing a . dir entry where reclen == block size results in an out-of-bounds read later, when the corrupted director...

Astra Linux - Vulnerability in linux-6.12

In the Linux kernel, the following vulnerability has been resolved: ipv6: mcast: extend RCU protection in igmp6send igmp6send can be called without RTNL or RCU being held. Extend RCU protection so that we can safely retrieve the net pointer and avoid a potential use-after-free UAF. Note that we c...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ARM: dts: bcm2711: Fix xHCI power-domain During S2idle tests on the Raspberry CM4, the VPU firmware always crashes when the xHCI power-domain is resumed: root@raspberrypi:/sys/power echo freeze state 70.724347 xhcisuspend finishe...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Increase ARCHDMAMINALIGN to 16 ARCHDMAMINALIGN is set to 1 by default, but some LoongArch-specific devices such as APBDMA require a 16-byte alignment. When the data buffer length is too small, the hardware may make an...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: acct: performs the last write operation from the workqueue. In 1, it was reported that the acct2 system call can be used to trigger a NULL derefrence in cases where it is set to write to a file that triggers an internal lookup...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A validation check for zero numsubauth is added before accessing subauth. Accessing psid-subauthpsid-numsubauth - 1 without checking whether numsubauth is non-zero can lead to an out-of-bounds read. This patch adds a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: rvcm: Fix the out-of-bound issue with vmemmap addresses In the sparse vmemmap model, the virtual address of vmemmap is calculated as: struct page VMEMMAPSTART - physrambase PAGESHIFT. The virtual address of struct pages can also ...

kernel: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2cap_send_cmd

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the released l2capconn when sending to the upper layer. Add hci dev lock to...

kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up

A use after free vulnerability exists in the linux kernel such that dputupper is being called before ovldentryupdatereval, while upper-dflags was still accessed in ovldentryremote...

CVE-2025-37996

Summary: CVE-2025-37996 affects the Linux kernel on ARM64 with KVM. The root cause was an uninitialized local memcache pointer in user_mem_abort() caused by a conditional initialization after the commit that plumbed the pKVM MMU. A code path through kvm_pgtable_stage2_map() could use the uninitia...

CVE-2025-37994 usb: typec: ucsi: displayport: Fix NULL pointer access

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: displayport: Fix NULL pointer access This patch ensures that the UCSI driver waits for all pending tasks in the ucsidisplayportwork workqueue to finish executing before proceeding with the partner removal...

kernel: usbnet: sanity check for maxpacket

In the Linux kernel, the following vulnerability has been resolved: usbnet: sanity check for maxpacket maxpacket of 0 makes no sense and oopses as we need to divide by it. Give up. V2: fixed typo in log and stylistic issues...