Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: removed WARNONONCE when accessing the forward path array Although unlikely, recent support for IPIP tunnels increases the chances of encountering this WARNONONCE if the user space manages to create a sufficiently long forwar...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: tulip: de4x5: fixed the issue where the array ‘lp-phy8’ might be out of bounds. In line 5001, if all values in the array ‘lp-phy8’ are not 0, then at the end of the ‘for’ loop, the value of ‘k’ will be 8. At this point, the...

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

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: Unconditionally sets set-nelems before inserting an element. In the event that the set is full, a new element is inserted and then removed without waiting for the RCU grace period. Meanwhile, the RCU reader m...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Network layer: Do not leave a dangling “sk” pointer when socket creation fails. It is possible to trigger a use-after-free by: - Attaching a “fentry” probe to sockrelease and the probe that calls bpfgetsocketcookie; - Running...

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

In the Linux kernel, the following vulnerability has been resolved: sched: schcake: bounds checks were added to the host bulk flow fairness counts. Although we fixed a logic error in the commit cited below, the syzbot still managed to cause an underflow in the per-host bulk flow counters, resulti...

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: Bluetooth: 6lowpan: resetting the link-local header in the IPv6 receive path The Bluetooth 6lowpan.c netdev module has the headerops function; therefore, it must set the link-local header for the RX skb packet. Otherwise, thin...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: RISC-V: Ensure that port I/O string accessors actually work properly. Fixed port I/O string accessors such as insb’, outsb’, etc., which use the physical PCI port I/O address rather than the corresponding memory mapping to...

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: net: skbuff: The SKBFLSHAREDFRAG bit was not properly propagated through the frag-transfer helpers. Two frag-transfer helpers pskbcopyfclone and skbshift fail to propagate the SKBFLSHAREDFRAG bit in skbshinfo-flags when moving...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ext4: Reject mounting if bigalloc with sfirstdatablock != 0. bigalloc with sfirstdatablock != 0 is not supported; mounting will be rejected...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: cgroup: Use separate source/destination nodes when preloading csssets for migration. Each cssset is associated with its corresponding tasks. When moving tasks between csssets during a migration, we need to keep the source and...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ipv4: The need to account for “fraggap” on the paged allocation path. In ipappenddata, when the paged-allocation branch is taken, alloclen and pagedlen are calculated as follows: alloclen = fragheaderlen + transhdrlen; pagedlen =...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: Check whether the target buffer list is still of the legacy type during recycling. There is a gap between the time the buffer is acquired and the time it potentially gets recycled. If the bufferlist is empty, someon...

Astra Linux – Vulnerability in Linux 5.10, Linux

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 – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: ftrace: Do not blindly read the IP address in ftracebug. It was reported that a bug in arm64 caused a bad IP address to be used for updating a NOP instruction in ftraceinit. However, the error path correctly returned -EINVAL...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ntbnetdev: Use devkfreeskbany in interrupt context. TX/RX callback handlers ntbnetdevtxhandler, ntbnetdevrxhandler can be called in interrupt context via the DMA framework after the respective DMA operations are completed...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: serial: pch: Fixed a reference count leak in pchrequestdma. According to the comments on pcigetslot, it returns a pcidevice with its reference count increased. The caller must decrement the reference count by calling pcidevput...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: Fixed a heap buffer overflow in ioam6fillTraceData. In the receive path, ioam6fillTraceData uses trace-nodelen to determine how much data to write for each node. It relies on this field directly from the incoming...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: core: Validate channel ID when processing command completions MHI reads the channel ID from the event ring element sent by the device; this value can be any number between 0 and 255. To prevent out-of-bounds access, a...

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: drm/amd/display: Check NULL before accessing WHAT IGT kmscursorlegacy's long-nonblocking-modeset-vs-cursor-atomic fails with NULL pointer dereference. This can be reproduced with both an eDP panel and a DP monitors connected. BUG...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Always drain health during the shutdown callback. There is no point in performing recovery operations during device shutdown. If health-related tasks are initiated, one must wait until they are completed to avoid race...