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: NFSv4/flexfiles: rejecting a zero filehandle-version count The fflayoutalloclseg function decodes the count of the filehandle-version array from the flexfiles layout body. This value is used as the count for kzallocobjs, and the...

Astra Linux – vulnerability in linux-5.10

Ubuntu Linux 6.8, 6.17, and 7.0 contain SAUCE patches that may involve a NULL pointer dereference in the handling of AFINET/AFINET6 socket mediation. The bug can be triggered by an unprivileged local user. This may result in a kernel oops...

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 prior to setting TIFSME. As a result, restoring a ZA context can cause a task to...

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: rds: ib: Reject FRMR registration before IB connection is established. The rdsibgetmr function extracts the rdsibconnection from conn-ctransportdata and passes it to rdsibregfrmr for FRWR memory registration. In a newly...

Astra Linux – vulnerability in linux-5.10

Ubuntu Linux 6.8, 6.17, and 7.0 contain SAUCE patches that may involve a NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by a non-privileged local user. This may result in a kernel oops...

Astra Linux – vulnerability in linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: vmalloc: fix NULL pointer dereference in isvmareahugepages findvmarea may return NULL if the given address is not a valid vmalloc area. Verify the return value before dereferencing it to prevent a kernel crash...

Astra Linux – vulnerability in linux-6.1

In the Linux kernel, the following vulnerability has been resolved: vxlan: Fixed potential null-ptr-deref in vxlangropreparereceive. udptunnelsockrelease may set sk-skuserdata to NULL while vxlangropreparereceive is executing. Let’s verify whether rcudereferenceskuserdata returns NULL after...

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: TCP: IPv6: Clamping the default advertising MSS to avoid GSOBYFRAGS 0xFFFF. When the MTU is large, ip6defaultadvmss may return IPV6MAXPLEN 65535. This is interpreted by TCP as “mssclamp”, allowing the MSS to reach 65535. However,...

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: backlight: pm8941: Add a NULL check in wledconfigure. The devmkasprintf function returns NULL when memory allocation fails. Currently, wledconfigure does not check for this case, resulting in a NULL pointer being dereferenced. Ad...

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: nfs: Handling of failures in nfsgetlockcontext during unlock path When memory is insufficient, the allocation of nfslockcontext in nfsgetlockcontext fails and returns -ENOMEM. If we mistakenly treat an nfs4unlockdata structure...

Astra Linux – vulnerability in dcmtk

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service DoS via a crafted DICOM file...

Astra Linux – vulnerability in linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: ASoC: imx-card: Add NULL check in imxcardprobe devmkasprintf returns NULL when memory allocation fails. Currently, imxcardprobe does not check for this case, which results in a NULL pointer dereference. Add a NULL check after...

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: serial: Fixed a potential nullptrderef in mlbusioprobe The devmioremap function can return NULL in case of an error. Currently, mlbusioprobe does not check for this situation, which could lead to a NULL pointer dereference. A NUL...

Astra Linux – vulnerability in linux-5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix handling of wrong devices during bond netevent The current implementation of the bond netevent handler only checks whether the handled netdev is a VF representative; it fails to verify whether this VF representativ...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: iouring: Fixed a null-ptr-deref in iotctxexitcb. Syzkaller reports a NULL deref bug as follows: BUG: KASAN: null-ptr-deref in iotctxexitcb+0x53/0xd3 Read of size 4 at address 0000000000000138 by task file1/1955 CPU: 1 PID: 195...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: gpio: Restrict the use of GPIO chip IRQ members before initialization. The IRQ members of the GPIO chip are exposed before they can be fully initialized, which leads to race conditions. One such issue was observed with the...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: A NULL pointer dereference occurred in amdgpudmconnectoraddcommonmodes. In amdgpudmconnectoraddcommonmodes, amdgpudmcreatecommonmode assigns mode to mode, and mode is directly passed to drmmodeprobedadd...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: f2fs: quota: fixed the loop condition in f2fsquotasync The parameter cnt should be passed to sbhasquotaactive, rather than type, to correctly check the active quota. Moreover, when the type is -1, the compiler, with sufficient...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mfd: davincivoicecodec: Fixed a possible nullptrderef issue in davincivcprobe. This issue could lead to a nullptrderef when using ‘res’. If platformgetresource returns NULL, moving using ‘res’ after devmioremapresource will preve...

Astra Linux – vulnerability in linux-5.10, linux-5.15, linux

In the Linux kernel, the following vulnerability has been resolved: rtc: mt6397: check return value after calling platformgetresource This will lead to a null‑ptr‑deref if platformgetresource returns NULL; we must check the return value...