Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A issue was discovered in include/asm-generic/tlb.h in the Linux kernel before version 5.19. Due to a race condition between unmapmappingrange and munmap, a device driver can free a page while it still has stale TLB entries. This only occurs in situations involving VMPFNMAP VMAs...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fixed PM usagecount for console handover When the console is enabled, univ8250consolesetup calls serial8250consolesetup before .dev is set to uartport. As a result, pmruntimegetsync will not be called. Later, when t...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: remoteproc: qcom: q6v5: Fixed a potential null-ptr-deref in q6v5wcssinitmmio The q6v5wcssinitmmio function will call platformgetresourcebyname, which may fail and return NULL. The devmioremap function will use res-start as an...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The hardcoded hdr2len parameter was replaced with the offsetof function in smb2calcmaxoutbuflen. After this commit e2b76ab8b5c9 "ksmbd: add support for read compound", the management of response buffers was changed to use ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RISCV: kprobe: Fixed kernel panic when probing an illegal position The kernel would panic when trying to probe an illegal position. For example: CONFIGRISCVISAC=n Example code: bash echo 'p:hello kernelclone+0x16 a0=%a0'...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: regmap-irq: Fixed an out-of-bounds access when allocating config buffers When allocating the 2D array for handling IRQ type registers in regmapaddirqchipfwnode, the intention is to allocate a matrix with numconfigbases rows and...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: firmware: armscmi: Fix slab-use-after-free in scmibusnotifier The scmidev-name is released prematurely in scmidevicedestroy, which causes slab-use-after-free when accessing scmidev-name in scmibusnotifier. So move the release of...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/sched: Fixed reference leaks related to netdevice objects in attachdefaultqdiscs. In attachdefaultqdiscs, if a device has multiple queues and queue 0 fails to attach a qdisc due to lack of memory during attachonedefaultqdisc,...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: qlcnic: Prevent “dbc use-after-free” in qlcnicdcbenable. The adapter-dcb pointer would be silently freed within qlcnicdcbenable if qlcnicdcbattach returns an error—something that always occurs under OOM conditions. This could lea...

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

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Cleaning up a dangling pointer on the bind error path The mtkdrmBind function may fail, in which case drmdevPut is called, destroying the drmdevice object. However, a pointer to that object was still being held by t...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a division by zero issue in l2capleflowctlinit. l2capleflowctlinit may cause both a division by zero and an integer overflow, as hdev-lemtu may not fall within the valid range. The MTU value was moved...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: LoongArch: BPF: Prevent out-of-bounds memory access The testtag test triggers an unhandled page fault: ./testtag 130.640218 CPU 0 Unable to handle kernel paging request at virtual address ffff80001b898004, era ==...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Limiting the period size to 16MB We have set a practical limit on the period size the fragment shift in OSS, instead of using a full 31-bit value. A too-large value could lead to memory exhaustion, as we allocate...

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

In the Linux kernel, the following vulnerability has been resolved: ravb: Fixed the use-after-free issue in ravbtxtimeoutwork. The ravbstop function should call cancelworksync. Otherwise, ravbtxtimeoutwork may use the freed private data after ravbremove is called, as follows: CPU0 CPU1...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Fixed a memory leak when thresholdcreatebank fails. In mcethresholdcreatedevice, if thresholdcreatebank fails, the previously allocated thresholdbanks array @bp will be leaked, because the call to...

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

In the Linux kernel, the following vulnerabilities have been resolved: s390/dasd: Fixed a potential memory leak in dasdeckdinit. The dasdreservereq resource is allocated before dasdvolinforeq, and it also needs to be freed before the error is returned, just like in the other cases within this...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fixed a data race between perfeventsetoutput and perfmmapclose. Yang Jihing reported a race between perfeventsetoutput and perfmmapclose: CPU1 CPU2 perfmmapclosee2 if atomicdecandtest&e2-rb-mmapcount // 1 - 0 detachres...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Check whether the transferred 2D BO is a shmem BO. The transferred 2D BO must always be a shmem BO. Add a check to prevent NULL dereferencing if the user space passes a VRAM BO...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/perf: Optimized the clearing of pending PMI entries, and removed the WARNON for the PMI check in powerpmudisable. The commit 2c9ac51b850d “powerpc/perf: Fix PMU callbacks to clear pending PMI before resetting an...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: BPF: Do not use tnumrange for array range checking when dealing with poke descriptors. Hsin-Wei reported a KASAN issue triggered by their BPF runtime fuzzer, which is based on a custom syzkaller: - BUG: KASAN: Out-of-bounds...