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

A heap out-of-bounds write vulnerability in the Linux Kernel Performance Events perf component of the Linux kernel can be exploited to achieve local privilege escalation. If the perfreadgroup function is called when the siblinglist of an event is smaller than that of its child, it may increment o...

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: hfsplus: removed the mutexlock check in hfsplusfreeextents Syzbot reported an issue with the hfsplus filesystem: ------------ cut here --- WARNING: CPU: 0 PID: 4400 at fs/hfsplus/extents.c:346 hfsplusfreeextents+0x700/0xad0 Ca...

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

In the Linux kernel, the following vulnerabilities have been resolved: drm/client: Fixed a memory leak in drmclientmodesetprobe. When a new mode is set to modeset-mode, the previous mode should be freed. This fixes the following kmemleak reports: drmmodeduplicate+0x45/0x220 drm...

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: comedi: vmk80xx: fixed incomplete endpoint checking While vmk80xx does have endpoint checking implemented, some issues may still go unnoticed. Depending on the hardware model, URBs can have either bulk or interrupt types, and the...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: uprobes: Reject the shared zeropage in uprobewriteopcode We triggered the following crash in syzkaller tests: BUG: Bad page state in process syz.7.38 pfn:1eff3 page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: serial: core: check uartclk for zero to avoid divide by zero Calling ioctl TIOCSSERIAL with an invalid baudbase can result in uartclk being zero, which will cause a divide by zero error in uartgetdivisor. The check for uartclk...