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: NFSv4/pNFS: Fixed a race condition related to waking up the NFSLAYOUTDRAIN task. We identified several systems where tasks were stuck in a writeback state, waiting for the same page lock. Additionally, one task was waiting for th...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: perf: RISC-V: Remove PERFHESSTOPPED flag checking in riscvpmustart Since commit 096b52fd2bb4 “perf: RISC-V: throttle perf events”, the perfsampleeventtook function was added to report time spent in overflow interrupts. If the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bootconfig: Use memblockfreelate to free xbc memory to the buddy allocator. In the code for freeing xbc memory in xbcexit, memblock might have transferred memory to the buddy allocator. Therefore, it doesn’t make sense to free...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: Skip non-Ethernet packets Currently, tcfskbmodact assumes that packets use Ethernet as their L2 protocol. This assumption is not always true. For example, for CAN devices: bash $ ip link add dev vcan0 type...

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: wifi: ath11k: fixed node corruption in the “ar-arvifs” list In the current WLAN recovery code flow, ath11kcorehalt only re initializes the “arvifs” list head. This causes the list node immediately following the list head to becom...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: mxl111sf: change mutexinit location Syzbot reported that mxl111sfctrlmsg uses an uninitialized mutex. The issue was in the incorrect location of the mutexinit call. Previously, the mutexinit&state-msglock call was made...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Avoid using a null object of the framebuffer. Instead of directly using state-fb-obj0, obtain the object from the framebuffer by calling drmgemfbgetobj. Return an error code when the object is null to avoid using a nu...

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

In the Linux kernel, the following vulnerability has been resolved: tcpbpf: The return value of tcpbpfsendmsg was corrected. When we use the cork mechanism in psock-cork, the last message triggers flushing, resulting in sending a skmsg that is larger than the current message size. In this case, i...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: hwmon: mlxreg-fan Returns a non-zero value when the fan’s current state is enforced from sysfs. The minimum fan speed can be enforced from sysfs. For example, setting the current fan speed to 20 is used to force the fan speed ...

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

In the Linux kernel, the following vulnerability has been resolved: nilfs2: A use-after-free bug in nilfsroot has been fixed in nilfsevictinode. During the unmount process of nilfs2, nothing holds the nilfsroot structure after nilfs2 detaches its writer in nilfsdetachlogwriter. However, since...

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: soc: qcom: pdr: Fixed the potential deadlock issue. When some client process A calls pdraddlookup to add a lookup for the service and performs scheduling-related tasks, another process B receives a new server packet indicating th...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: udmabuf: Set the DMA mask for the udmabuf device v2 If the DMA mask is not set explicitly, the following warning occurs when the userspace attempts to access the dma-buf via the CPU, as reported by syzbot: WARNING: CPU: 1 PID:...

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

In the Linux kernel, the following vulnerability has been resolved: mm: hugetlb: independent PMD page table shared count The refcount may be unexpectedly increased through functions like trygetfolio, especially by calls such as splithugepages. In hugepmdunshare, we use the refcount to check wheth...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: xtensa: simdisk: added input size checking in procwritesimdisk A malicious user could potentially enter an arbitrarily bad value into memdupusernul, which might cause the kernel to crash. This follows the same pattern as the patc...

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

In the Linux kernel, the following vulnerability has been resolved: media: anysee: fixed the null-ptr-deref in anyseemasterxfer. In anyseemasterxfer, msg is controlled by the user. When msgi.buf is null and msgi.len is zero, previous checks on msgi.buf will still be performed. Malicious data will...

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: TCP: Fixed corruption in MPTCP’s DSS due to large PMTU transmissions. Syzkaller was able to trigger DSS corruption: - TCP: requestsocksubflowv4: Possible SYN flooding on port :::20002. Sending cookies. ------------ Cut here...

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

In the Linux kernel, the following vulnerabilities have been resolved: drm/i915/gt: Fixed a potential UAF issue by revoking the fence registers. CI has been sporadically reporting the following issue triggered by igt@i915selftest@live@hangcheck on ADL-P and similar machines: 414.049203 i915:...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: EDAC/qcom: Do not pass llccdrivdata as edacdevicectlinfo’s pvtinfo. The memory for llccdrivdata is allocated by the LLCC driver. However, when it is passed as private driver information to the EDAC core, it will be freed during t...

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

In the Linux kernel, the following vulnerabilities have been resolved: rapidio: Fix an API misuse when rioaddnet fails. rioaddnet calls deviceregister, and it fails when deviceregister does. Therefore, putdevice should be used instead of kfree. Also, add "mport-net = NULL;" to avoid a...

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: hfsplus: fixed the KMSAN uninit-value issue in hfsplusextcacheextent The syzbot reported an issue in hfsplusextcacheextent: 70.194323 T9350 BUG: KMSAN: uninit-value in hfsplusextcacheextent+0x7d0/0x990 70.195022 T9350...