Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: x86/ioremap: Maps EFI-reserved memory as encrypted for SEV. Some drivers require memory that is marked as EFI boot services data. To prevent this memory from being reused by the kernel after ExitBootServices, efimemreserve is use...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: x86/hyperv: Fixed a NULL dereferencing in sethvtscchangecb if the Hyper-V setup fails. Checked for a valid hvvpindex array before dereferencing hvvpindex when setting Hyper-V’s TSC change callback. If Hyper-V setup fails in...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net:sched: fix memory leak in tcindexpartialdestroywork Syzbot reported a memory leak in tcindexsetparms. The issue arose from the non-freeing of the perfect hash within tcindexpartialdestroywork. In tcindexsetparms, a new...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: macb: fixed the use of “free” after calling “rmmod”. “platdev-dev-platformdata” is released by calling “platformdeviceunregister”. The use of “pclk” and “hclk” constitutes a use-after-free. Since “deviceunregister” does n...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: hwmon: w83791d Fixed NULL pointer dereferencing by removing unnecessary structure fields. If the driver reads a value that is sufficient for the condition: val & 0x08 && !val & 0x80 && val & 0x7 == val 4 & 0x7 then NULL pointer...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: freeing rawreport buffers when the device is removed. This fix addresses a memory leak reported by syzbot at: https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netsched: Fixed a NULL dereference in fifosetlimit. syzbot reported another NULL dereference in fifosetlimit. 1 The issue can be reproduced with the following command: unshare -n tc qd add dev lo root handle 1:0 tbf limit 2000...

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: KVM: x86: Reject Hyper-V’s SENDIPI hypercalls if the local APIC is not part of the kernel. Advertise support for Hyper-V’s SENDIPI and SENDIPIEX hypercalls only if the local API is emulated/virtualized by KVM. Also, explicitly...

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 – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: irqchip/gic-v3: A refcount leak was fixed in gicpopulateppipartitions. The function offindnodebyphandle returns a node pointer with a incremented refcount. We should use ofnodeput on it when there is no longer a need for it. A...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: igb: Fixed a use-after-free issue in igbcleantxring. Fixed the following use-after-free bug in the igbcleantxring routine when the NIC is running in XDP mode. This issue can be triggered by redirecting traffic to the igb NIC a...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: xen/netback: Avoid entering xenvifrxnextskb with an empty rx queue. xenvifrxnextskb expects the rx queue not to be empty. However, if the loop in xenvifrxaction performs multiple iterations, the availability of another skb in the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix insufficient bounds propagation from adjustscalarminmaxvals Kuee reported a corner case where the tnum becomes constant after the call to regboundoffset, but the bounds of the register are not correct. In particular, its...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ipv6: fixed a lockdep issue in in6dumpaddrs According to reports from syzbot, we should not use rcudereference when rcureadlock is not held. WARNING: suspicious RCU usage 5.19.0-rc2-syzkaller 0 Not tainted net/ipv6/addrconf.c:517...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: iio: adc: adi-axi-adc: Fixed the refcount leak in adiaxiadcattachclient. The ofparsephandle function returns a node pointer with a refcount incremented. We should use ofnodeput on it when there is no longer a need for it. Add the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: - For soc: bcm: brcmstb: pm: pm-arm – A refcount leak in brcmstbpmprobe was fixed. - In the function offindmatchingnode, a node pointer is returned with a refcount incremented. We should use ofnodeput on it when there is no...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed the requestsock leak in sk lookup helpers A customer reported a requestsocket leak in a Calico cloud environment. We found that a BPF program was performing a socket lookup, taking a reference count of the socket. It w...

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

An integer overflow flaw was discovered in the Linux kernel. This issue causes the kernel to allocate skbsharedinfo in the user space, which can be exploited in systems without SMAP protection, as skbsharedinfo contains references to function pointers...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Successfully freeing the rwi upon reset. The rwi structure is freed if the last rwi in the list is processed successfully. The logic in commit 4f408e1fa6e1 “ibmvnic: Retry the reset if there are no other resets” introduc...

Astra Linux – Vulnerability in Linux, Linux 5.15

There is a use-after-free vulnerability in the ALSA PCM package within the Linux kernel. The SNDRVCTLIOCTLELEMREAD|WRITE32 function lacks locks that could be exploited in a use-after-free scenario, potentially leading to an escalation of privileges to gain ring0 access from the system user. We...