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

In the Linux kernel, the following vulnerability has been resolved: ext4: Make sure the first directory block is not a hole. The syzbot constructs a directory that has no dirblock, but it is not inline; in other words, the first directory block is a hole. No errors are reported when creating file...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Null checks for ‘stream’ and ‘plane’ were added before dereferencing them. This commit adds null checks for the ‘stream’ and ‘plane’ variables in the dcn30applyidlepoweroptimizations function. These variables wer...

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: KVM: x86: Fixed a situation where a hard lockup occurs in the virtual machine after prolonged inactivity, due to the periodic HV timer. When advancing the expiration of the guest’s APIC timer in periodic mode, set the expiration ...

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: afunix: Fixed data races related to user-unixinflight. user-unixinflight is updated under spinlockunixgclock, but toomanyunixfds accesses it without locking. Let’s annotate the write/read accesses to user-unixinflight. BUG:...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ipv6: Fixed a NULL pointer dereference in ip6rtgetdevrcu. l3mdevmasterdevrcu can return NULL when the slave device is being un-slaved from a VRF. All other callers handle this issue, but we lost the fallback to loopback in...

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

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: platform/chrome: crosecishtp: Fixed a UAF issue after unbinding the driver. After unbinding the driver, another kthread named crosecconsolelogwork still accesses the device, resulting in a UAF and system crash. The driver does no...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Prevent deadlock while disabling aRFS When disabling aRFS under the priv-statelock, any scheduled aRFS operations are canceled using the cancelworksync function. This function waits for the operation to finish if it ha...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: power: supply: cpcap-battery: Fix the issue where the nvmemdeviceput function was not called, leading to a reference leak. In cpcapbatterydetectbatterytype, the reference to an nvmem device obtained through nvmemdevicefind was no...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Cancel special fields on map value recycle Map update and delete operations currently call bpfobjfreefields when a value is being replaced or recycled. This means that the destruction of special fields depends on the context...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pci: Fixed memory accounting for pinned/unpinned pages The accountmem and unaccountmem functions call getuid, which increments the reference count of struct userstruct on every invocation. However, we do not decrement...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tracing: Silence warning when chunk allocation fails in tracepidwrite Syzkaller trigger a fault injection warning: WARNING: CPU: 1 PID: 12326 at tracepointaddfunc+0xbfc/0xeb0 Modules linked in: CPU: 1 UID: 0 PID: 12326 Comm:...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Fixed the function prototype mismatch for ext4featktype. With Clang’s Kernel Control Flow Integrity kCFI, CONFIGCFICLANG, indirect call targets are validated against the expected function pointer prototype to ensure that th...

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

In the Linux kernel, the following vulnerabilities have been resolved: scsi: qedf: Make qedfexecutetmf non-preemptible Stop calling smpprocessorid from preemptible code in qedfexecutetmf90. This results in BUGON when running an RT kernel. 659.343280 BUG: Using smpprocessorid in preemptible 000000...

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

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: Build event generation tests are now performed only as modules. The kprobes and synth event generation test modules add events and lock them get a reference to those event files in the module initialization function,...

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

In the Linux kernel, the following vulnerability has been resolved: Net: Fixed a UAF Use-after-Allocation issue in packetrelease due to a race condition involving NETDEVUP. packetrelease has a race condition where NETDEVUP can re-register a socket into the arr array of fanout groups. This...

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: rtl818x: Kill URBs before clearing the txstatusqueue In rtl8187stop, the call to usbkillanchoredurbs is moved before clearing the btxstatusqueue. This change prevents callbacks from using already freed skb because the ancho...

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

In the Linux kernel, the following vulnerability has been resolved: net: nsh: Use the correct macoffset to unwind the gsoskb in nshgsosegment. As shown in the call trace, the skbpanic occurred due to an incorrect skb-macheader in nshgsoSegment. Invalid opcode: 0000 1 PREEMPT SMP KASAN PTI CPU: 3...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dm: removed the fake timeout to avoid leaking requests Since commit 15f73f5b3e59 "blk-mq: moved failure injection out of blkmqcompleterequest", drivers are responsible for calling blkshouldfaketimeout at appropriate code paths an...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: tls: Purged asynchold from tlsdecryptwait The asynchold queue retains encrypted input data while the AEAD engine references their scatterlist data. Once tlsdecryptwait returns, all AEAD operations are completed, and the engine no...