Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: x86/sgx: Add a overflow check in sgxvalidateoffsetlength The sgxvalidateoffsetlength function verifies the "offset" and "length" arguments provided by the user space. However, there was a lack of an overflow check when these...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: clocksource: hyper-v: unexport init-annotated hvinitclocksource EXPORTSYMBOL and init are a poor combination, as the .init.text section is freed after initialization. As a result, modules cannot use symbols annotated with init...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fixed an issue of signed integer overflow in l2tpip6sendmsg. When len = INTMAX - transhdrlen, the value of ulen = len + transhdrlen will cause an overflow. To address this issue, we can follow the approach used by udpv6 and...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: fix missing folio cleanup in writeback race path In zswapwritebackentry, after obtaining a folio from readswapcacheasync, we reacquire the tree lock to ensure that the swap entry was not invalidated or recycled. If it...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: crypto: ccree – Fixed the use of ctxp-user.key after it is freed in cccipherexit. kfreesensitivectxp-user.key will free ctxp-user.key. However, ctxp-userkey is still used in the next line, which will lead to a use after free. We...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Block: Do not delete a queue kobject before its child kobjects are deleted. Kobjects are not supposed to be deleted before their child kobjects are deleted. Apparently, this is usually harmless; however, a warning will be trigger...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: SOF: Intel: Fixed NULL pointer dereferencing when ENOMEM occurs. Do not call snddmafreepages when snddmaallocpages returns -ENOMEM, as this can lead to a NULL pointer dereferencing bug. The dmesg indicates the following:...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: rtc: pl031: Fixed the issue of null pointer dereferencing in RTC features. When there is no interrupt line, the RTC alarm feature is disabled. The clearing of the alarm feature bit was performed before allocating the ldata-rtc...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: jffs2: fixed a memory leak in jffs2scanmedium If an error is returned in jffs2scaneraseblock, and some memory is added to the jffs2summary s, we can observe the following kmemleak report:...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: NFSD: prevents integer overflow on 32-bit systems. On a 32-bit system, the operation “len sizeofp” can lead to an integer overflow...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: s390/cio: A race condition during online processing has been fixed. There is a race condition in the ccwdevicesetonline function, which can cause the online process to fail, leaving the affected device in an inconsistent state. A...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: kprobes/x86: Use copyfromkernelnofault to read from an unsafe address. Reading from an unsafe address using copyfromkernelnofault in archadjustkprobeaddr is allowed because this function is called before checking whether the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Error handling was added in xhcimapurbfordma. Currently, xhcimapurbfordma creates a temporary buffer and copies the SG list to the new linear buffer. However, if kzallocnode fails, the call to sgpcopytobuffer may lead ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: KVM: x86/pmu: Disabled support for adaptive PEBS. Support for virtualizing adaptive PEBS has been discontinued. This is because KVM’s implementation is architecturally broken without an obvious or easy way to address the issue...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: clk: Obtain runtime PM information before traversing the tree to retrieve clksummary. Similar to the previous commit, we should ensure that all devices are resumed during runtime before printing the clksummary through debugfs...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: The issue of GUP-fast successfully accessing secretmem folios has been fixed. The function folioissecretmem currently relies on secretmem folios being marked as LRU to save some processing cycles. However, secretmem...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dma-buf: Fixed NULL pointer dereferencing in sanitycheck. If mockchain returns NULL due to a memory allocation failure, it is passed to dmafenceenableswsignaling, resulting in a NULL pointer dereferencing there. Call...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mlxbfgige: Call requestirq after NAPI initialization The mlxbfgige driver encounters a NULL pointer exception in mlxbfgigeopen when kdump is enabled. The sequence to reproduce this exception is as follows: a Enable kdump. b Trigg...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/ast: Fixed soft lockup issues. There is a while-loop in astdpsetonoff, which could lead to an infinite loop. This is because the register VGACRI-Dx checked in this API is actually a scratch register controlled by an MCU named...

Astra Linux – Vulnerability in Linux 5.15

The Linux kernel’s NFSD implementation before versions 5.19.17 and 6.0.2 is vulnerable to buffer overflow attacks. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call RPC into a single array of pages. A client can force the...