Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Fixed a race condition related to bitfield writes in btrfsclearspaceinfofull. According to the memory-barriers.txt document regarding memory barrier ordering guarantees: - These guarantees do not apply to bitfields, as...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: gpio: virtuser: fix UAF in configfs release path The gpio-virtuser configfs release path uses a guard mutex to protect the device structure. However, the device is freed before the mutex cleanup runs, causing mutexunlock to opera...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net/handshake: The function handshakereqsubmit replaces sk-skdestruct, but it never restores it when submission fails before the request is hashed. As a result, handshakeskdestruct returns early, and the original destructor never...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: spi: spi-sprd-adi – Fixed a double-free in the probe error path. The driver currently uses spiallochost to allocate the controller, but registers it using devmspiregistercontroller. If devmregisterrestarthandler fails, the code...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: A memory leak has been fixed in amdgpuacpienumeratexcc. In amdgpuacpienumeratexcc, if amdgpuacpidevinit returns -ENOMEM, the function returns directly without releasing the allocated xccinfo. This results in a memory...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: dm: fixed the unlocked test for dmsuspendedmd. The function dmblkreportzones checks whether the device is suspended using the dmsuspendedmd call. However, this function is called without holding any locks, so the device may be...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: libceph: The calctarget function should set t-paused, rather than simply clearing it. Currently, calctarget clears t-paused if the request should no longer be paused. However, it never sets t-paused, even though it can determine...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mtdchar: Fixed integer overflow in read/write ioctls. The req.start and req.len variables are u64 values that originate from the user at the beginning of the function. We mask the high 32 bits of req.len, ensuring that its value ...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs: ntfs3: fixed an infinite loop triggered by a zero-sized ATTRLIST. We have identified a bug in the ntfs3 file system that can lead to a Denial-of-Service DoS attack. A malformed NTFS image can cause an infinite loop when the...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and perform cleanup before freeing the context. The llcshdlcdeinit function cleans up SHDLC skb queues and frees the llcshdlc structure. During this process, timer functions and the state machine may...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: wifi: rtw88: 8822b: Avoid warnings in rtw8822bconfigtrxmode The function rtw8822bsetantenna can be called from userspace when the chip is powered off. In that case, a warning is triggered in rtw8822bconfigtrxmode, because...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: pinctrl: equilibrium: fixed the warning trace on load The callback functions ‘eqbrirqmask’ and ‘eqbrirqack’ are also called in the callback function ‘eqbrirqmaskack’. This is done to avoid source code duplication. The problem ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: sched: actife: initialize struct tcife to fix KMSAN kernel-infoleak. This issue was fixed by using the syzbot tool to detect and address the KMSAN kernel-infoleak. In tcfifedump, the variable ‘opt’ was partially initialized...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netrom: The double-free issue in nrrouteframe has been fixed. In nrrouteframe, the oldskb is freed immediately, without checking whether nrneigh-ax25 is NULL. As a result, if nrneigh-ax25 is NULL, the calling function will free...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: Fixed a NULL pointer dereference in ip6rtgetdevrcu. l3mdevmasterdevrcu can return NULL when the slave device is being un-slaved from a VRF. All other callers handle this issue, but we lost the fallback to loopback in...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: mediatek: Avoid NULL dereference of btusbmtkclaimisointf In the btusbmtksetup function, we set btmtkdata-isopktintf to: usbifnumtoifdata-udev, MTKISOIFNUM This function may return NULL in some cases. Even when...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nvme-tcp: A NULL pointer dereference was fixed in the nvmettcpbuildpduiovec function. The commit efa56305908b “nvmet-tcp: Fixed a kernel panic when the host sends an invalid H2C PDU length” added bounds checking for the ttag...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: fix kasan out-of-bounds warning in sja1105tabledeleteentry There are actually 2 problems: 1. Deleting the last element does not require moving elements. In fact, the element at position i+1 is out of bounds. 2...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: powerpc/eeh: Fixed the recursive pcilockrescanremove locking mechanism in EEH event handling. The recent commit 1010b4c012b0 “powerpc/eeh: Making the EEH driver’s device hotplug safe” restructured the EEH driver to improve...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: scsi: imm: Fixed a use-after-free bug caused by unfinished delayed work. The delayed work item “immtq” is initialized in immattach and scheduled for processing via immqueuecommand. When the IMM parallel port SCSI host adapter is...