Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fixed a memory leak in PBLE objects. For the rmmod of irdma, the memory of PBLE objects is not freed. PBLE objects’ memory is not statically allocated at the time of function initialization—unlike other HMC objects...

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: scsi: core: Fixed a regression issue related to the removal of the procfs host directory The commit fc663711b944 “scsi: core: Removed the /proc/scsi/$procname directory earlier” fixed a bug related to module loading/unloading...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Writeback: Avoid use-after-free after removing a device. When a disk is removed, bdiunregister is called to stop further writeback operations and wait for the associated delayed tasks to complete. However, wb inodewritebackend ma...

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: rcu/rcuscale: The kfreescalethread threads is stopped after unloading the rcuscale module. Running the ‘kfreercutest’ test case results in a fatal error. The root cause is that the kfreescalethread threads continues to run after...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftsocket: removed WARNONONCE when the maximum cgroup level is reached By default, the maximum depth of a cgroup is INTMAX. There’s a setting in the cgroup API that allows restricting this maximum depth to a more...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Drivers: Base: Component – A memory leak was fixed in the use of debugfslookup. When calling debugfslookup, the result must also call dput on it; otherwise, a memory leak will occur over time. To simplify things, simply call...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: thermal/debugfs: Prevent a use-after-free from occurring after the cdev removal. Since thermaldebugcdevremove does not run under cdev-lock, it can run in parallel with thermal Debugcdevstateupdate. This may free the struct therma...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: USB: bcm63xxudc: fixed a memory leak that occurred when using debugfslookup. When calling debugfslookup, the result must be processed by calling dput; otherwise, a memory leak will occur over time. To simplify things, simply call...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: USB: fixed a memory leak caused by using debugfslookup. When calling debugfslookup, the result must be processed with dput, otherwise memory leaks will occur over time. To simplify things, simply call debugfslookupandremove, whic...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Stop the dlserver function before the CPU goes offline. The IBM CI tool reported a kernel warning1 when performing a CPU removal operation using drmgr2. For example: “drmgr -c cpu -r -q 1”. WARNING: CPU: 0 PID: 0 ...

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

In the Linux kernel, the following vulnerability has been resolved: sched/psi: Fixed a use-after-free in epremovewaitqueue If a non-root cgroup is removed while there is a thread that registered a trigger and is polling on a pressure file within the cgroup, the polling waitqueue will be freed in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: thermal/debugfs: Free all thermal zone debug memory upon removing a zone Since thermaldebugtzremove does not free all the memory allocated for thermal zone diagnostics, some of that memory becomes unreachable after freeing the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iavf: Fix for the hang during reboot/shutdown The recent commit 974578017fc1 “iavf: Add waiting so the port is initialized in remove” adds a wait-loop at the beginning of iavfremove, to ensure that port initialization is complete...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Avoid sg device teardown race The function sgremovesfpusercontext must not use sgdeviceDestroy after calling scsidevicePut. sgdeviceDestroy accesses the parent scsidevice request queue, which will already be set to NULL...

Astra Linux – Vulnerability in Linux 5.10, Linux

Several Linux PV device frontends are vulnerable to attacks by backends that use grant table interfaces to remove access rights in a way that is subject to race conditions. This can lead to potential data leaks, data corruption by malicious backends, and denial of service attacks. The blkfront,...

Astra Linux – Vulnerability in Linux, Linux 5.10

A use-after-free flaw was discovered in ncirequest in net/nfc/nci/core.c within the NFC Controller Interface NCI in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race issue while the device is being removed, leading to a privilege escalation...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: cxl/pmem: Fixed leaks in cxlpmemregion and cxlmemdev. When a cxlnvdimm object undergoes an -remove operation where the device is physically removed, nvdimmbridge is disabled, or the nvdimm device is disabled, any associated...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: blktrace: Fixed a UAF in the blkTraceAccess function after removal by sysfs. There is a use-after-free issue triggered by the following process: bash P1sda P2sdb echo 0 /sys/block/sdb/trace/enable blkTraceRemoveQueue...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: wwan: iosm: A NULL pointer dereference occurs during the removal of a device. During the suspend and resume cycles, the removal and rescan of devices can lead to NULL pointer dereferences. During driver initialization, if th...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix kernel crash during module removal The driver incorrectly frees client instance and subsequent i40e module removal leads to kernel crash. Reproducer: 1. Do ethtool offline test followed immediately by another one host...