Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ext4: Fix potential null dereferencing in ext4mbinit In ext4mbinit, ext4mbavgfragmentsizedestroy may be called when sbi-smbavgfragmentsize remains uninitialized e.g., if the groupinfo slab cache allocation fails. Since...

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

In the Linux kernel, the following vulnerability has been resolved: media: vidtv: mux: Added checks and calls to kstrdup. A check is performed on the return value of kstrdup; if it fails, an error is returned to avoid NULL pointer dereferencing. Additionally, kfree is used in the subsequent error...

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: Netwerk: Ethernet: mtkethsoc: A possible NULL pointer dereferencing has been fixed in the mtkhwlrogetfdirall function. The rulelocs variable is allocated in the ethtoolgetrxnfc function, and its size is determined by rulecnt from...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ethtool: ioctl: fixed a potential NULL dereference in ethtoolsetcoalesce. ethtoolsetcoalesce now uses both .getcoalesce and .setcoalesce callbacks. However, the check for their availability is buggy. Therefore, changing the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a6xx: move preemptpreparepostamble after error check The call to preemptpreparepostamble is moved after verifying that preemptpostambleptr is valid. If preemptpostambleptr is NULL, dereferencing it in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm: mxsfb: Fix NULL pointer dereference mxsfb should never dereference a NULL pointer, as drmatomicgetnewbridgestate may return such a pointer. Instead, a fixed format should be used instead...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum: Protect the driver from buggy firmware When processing port up/down events generated by the device’s firmware, the driver attempts to protect itself from events reported for non-existent local ports. However, it...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mptcp: never allow the PM to close a listener subflow Currently, when deleting an endpoint, the netlink PM traverses all local MPTCP sockets, regardless of their status. If an MPTCP listener socket is bound to the IP correspondin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Added a NULL check for ‘replay’ in ‘edpsetreplayallowactive’. In the first if statement, we are checking whether ‘replay’ is NULL. However, in the second if statement, we do not check whether ‘replay’ is NULL aga...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: Do not access a released socket during error recovery. While the error recovery mechanism is temporarily failing due to reconnect attempts, running the nvme list command causes a kernel NULL pointer derefrence by callin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check debugtrapenable before writing dbgevfile. In an interrupt context, the write dbgevfile operation will be executed via a work queue. This will cause the write dbgevfile operation to be executed after...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ext4: Update sjournalinum if it changes after journal replay. When mounting a crafted ext4 image, sjournalinum may change after journal replay. This is obviously unreasonable, because we have successfully loaded and replayed the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: clk: mmp: pxa1908-apbcp: Fixed the issue where NULL was compared with ISERR. The devmkzalloc function does not return error pointers; it returns NULL in case of an error. Update the check to match this behavior...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iommufd: The “end” field should be set correctly when performing batch carry operations. Although the test suite covers this issue, it was somehow overlooked that this behavior was incorrect. The test...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: Split the initial and dynamic conditions for extentcache. We need to allocate the extentcache tree without dynamic conditions to avoid a panic caused by a missing condition as described below. Create a file with a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: Return early if the transport is not assigned. Some of the core functions can only be called if the transport has been assigned. As Michal reported, a socket may have NULL as the transport value, for example after a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bnxten: Fixed a NULL pointer crash in bnxtptpenable during error cleanup. When bnxtinitone fails during initialization e.g., bnxtinitintmode returns -ENODEV, the error handling code calls bnxtfreehwrmresources, which destroys the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fixed a DRM panic due to a null pointer when the driver does not support atomic operations. When the driver does not support atomic operations, fb uses plane-fb instead of plane-state-fb. Cherry-picked from commit...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Watchdog: lenovose30wdt: Fixed a possible NULL pointer dereferencing in lenovose30wdtprobe. devmioremap returns NULL upon error. Currently, lenovose30wdtprobe does not check for this case, resulting in a NULL pointer dereferencin...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Driver Core: Fixed a potential nullptrderef in deviceadd. I encountered the following nullptrderef during fault injection testing: Bug: NULL pointer dereferencing in the kernel. Address: 0000000000000058 CPU: 2 PID: 278 Comm:...