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: ext4: inline: fix len overflow in ext4prepareinlinedata When running the following code on an ext4 filesystem with inlinedata feature enabled, it will lead to the bug below. fd = open"file1", ORDWR | OCREAT | OTRUNC, 0666;...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: block: Do not revert the iterator for -EIOCBQUEUED. The blkdevreaditer function includes some unusual checks. For example, it checks whether the result is greater than or equal to zero before adjusting the position and count. Thi...

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

In the Linux kernel, the following vulnerability has been resolved: “mm/writeback: fix possible divide-by-zero in wbdirtylimits, again” This issue was addressed by reverting to the previous behavior. The patch series “mm: Avoid possible overflows in dirty throttling” also addresses this issue. Th...

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 5.15

A issue was discovered in the Linux kernel before version 6.3.10. The file fs/smb/server/smb2misc.c in ksmbd does not validate the relationship between the command payload size and the RFC1002 length specification, resulting in a out-of-bounds read...

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: Wifi: wlcore – Ensure skbheadroom before calling skbpush. This fix prevents occasional skbunderpanic errors in wl1271txwork. In this case, the allocated headroom is less than necessary typically 110 – 94 = 16 bytes...

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 – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drivers/base/node.c: Fixed the issue of the compaction sysfs file leaking. The compaction sysfs file is created using compactionregisternode in registernode. However, we forgot to remove it in unregisternode. As a result, the...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: core: The unnecessary framesz check in bpfxdpadjusttail has been removed. Syzkaller reported the following issue: ======================================= “Too big” – xdp-framesz = 131072 WARNING: CPU: 0, PID: 5020, at...

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 found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Check the device memory pointer before using it. Add a NULL check before accessing device memory to prevent a crash if the dev-dm allocation in mlx5initonce fails...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/msm/gpu: Fixed a crash that occurs when the GPU is throttled immediately during boot. There is a small chance that the GPU might be already hot during boot. In that case, the call to ofdevfreqcoolingregister will immediately...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: media: irtoy: free before error exiting The leak in the error handling path has been fixed...

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: usb: pegasus: enable basic endpoint checking The pegasusprobe function fills URBs with hardcoded endpoint pipes without verifying the endpoint descriptors: - usbrcvbulkpipedev, 1 for RX data - usbsndbulkpipedev, 2 for TX...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: PCI: hv: Fixed a crash in hvpcirestoremsimsg during hibernation. When a Linux virtual machine with a assigned PCI device runs on Hyper-V, if the PCI device driver is not yet loaded i.e., MSI-X/MSI is not enabled on the device,...

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

In the Linux kernel, the following vulnerability has been resolved: hsr: Prevent use after free in prpcreatetaggedframe The prpfillrct function may fail. In that case, it frees the skb and returns NULL. On the successful path, however, it returns the original skb. Therefore, it is straightforward...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mm/vmalloc: fixed vmalloc, which may return null if called with GFPNOFAIL. The commit a421ef303008 "mm: allow !GFPKERNEL allocations for kvmalloc" includes support for GFPNOFAIL, but it creates a conflict with the commit...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use the pmd-root from the last transaction when commit fails. Recently, we discovered a problem with a softlockup in the dm thin pool’s btree lookup code due to corrupted metadata. Kernel panic – not syncing: Softlockup:...

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...