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

In the Linux kernel, the following vulnerabilities have been resolved: net/ipv6: avoided a possible Use After Free UAF in ip6routempathnotify syzbot discovered another use-after-free in ip6routempath Notify. 1 The commit f7225172f25a “net/ipv6: prevent use after free in ip6routempath Notify” fail...

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

In the Linux kernel, the following vulnerabilities have been resolved: tee, amdtee: fixed the use-after-free vulnerability in amdteeclosesession. There is a potential race condition in amdteeclosesession that may cause a use-after-free in amdteeopenSession. For example, if a session has a referen...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: arm64/fpsimd: Signal: Allocate SSVE storage when restoring ZA The code used to restore a ZA context does not attempt to allocate the task’s svestate before setting TIFSME. As a result, restoring a ZA context may place the task in...

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: fou: Do not allow the value 0 for FOUATTRIPPROTO. The issue mentioned in the previous patch still exists in fouudprecv. If FOUATTRIPPROTO is set to 0, the buffer skb is neither freed by fouudprecv nor sent through...

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: libceph: The calctarget function should set t-paused, rather than simply clearing it. Currently, calctarget clears t-paused if the request should no longer be paused. However, it never sets t-paused, even though it can determine...

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: gue: Fixed a skb memory leak associated with the inner IP protocol 0. The syzbot reported a skb memory leak below. 0 The repro process generated a GUE packet with its inner protocol set to 0. The function gueudprecv returns...

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

In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939xtprxrtssessionactive – The session is deactivated upon receiving the second RTS packet. Since j1939tprxtimer calls j1939sessiondeactivateactivatenext only when the timer is enabled, we need to call this...

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, the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

The nfqnlmangle function in net/netfilter/nfnetlinkqueue.c in the Linux kernel, as of version 5.18.14, allows remote attackers to cause a denial of service panic. This occurs because, in the case of an nfqueue verdict with a one-byte nftapayload attribute, an skbpull operation may encounter a...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: octeontx2-af: Added validation before accessing cgx and lmac. With the addition of new MAC blocks such as CN10K RPM and CN10KB RPMUSX, LMACs are noncontiguous, and CGX blocks are also noncontiguous. However, during the RVU...

Astra Linux – Vulnerability in Linux 5.10, Linux

The file drivers/usb/gadget/legacy/inode.c in the Linux kernel, up to version 5.16.8, improperly handles the release of dev-buf...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ublk: The SQE128 flag is validated before accessing the cmd field. The ublkctrlcmddump function accesses the sqe-cmd field before checking the IOURINGFSQE128 flag. This could lead to out-of-boundary memory access. The flag...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: The length check that causes memory corruption was corrected. We have experienced severe kernel crashes due to memory corruption in our production environment. For example: Call Trace: 1640542.554277 General protectio...

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: wifi: mac80211hwsim: dropping short frames Technically, some control frames, such as ACK frames, are shorter and end after “Address 1”. Such frames should not be forwarded through wmediumd or similar user-space mechanisms...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Avoiding hwdesc array overrun in dw-axi-dmac I have a use case where nrbuffers = 3, and each descriptor consists of 3 segments. As a result, the DMA channel descriptors allocated are 9. Since axidescput handles the hwdesc by...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bnxtre: Avoid undefined behavior in bnxtqpliballocinithwq. Undefined behavior occurs when bnxtqpliballocinithwq is called with hwqattr-auxdepth != 0 and hwqattr-auxstride == 0. In that case, rounduppowoftwohwqattr-auxstride is...

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: Wireguard: Receive: Annotated data-race around receivingcounter.counter. Syzkaller with KCSAN identified a data-race issue when accessing keypair-receivingcounter.counter. Use READONCE and WRITEONCE annotations to mark the dat...

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: cpumap: The xdprxqinfo structure is not initialized to zero before running the XDP program. When running an XDP program that is associated with a cpumap entry, we do not initialize the xdprxqinfo data structure, which is used in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: schhtb: Made htbdeactivate idempotent. Alan reported a NULL pointer dereference in htbnextrbnode after we made htbqlennotify idempotent. It turns out that in the following case, some regressions were introduced: htbdequeuetree...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: drm/shmem-helper: Removed the erroneous “put” operation in the error path. The drmgemshmemmmap function does not handle this reference properly, resulting in the GEM object being freed prematurely, leading to a “use-after-free...