Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/disp: fixed a use-after-free in error handling of nouveauconnectorcreate. We cannot simply free the connector after calling drmconnectorinit on it. We need to clean up the DRM-related aspects first. This may not fix a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fixed the vport QoS cleanup mechanism in case of errors. When enabling vport QoS fails, the scheduling node never gets freed, resulting in a leak. The missing operations were added, and the vport scheduling node pointer...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: Fix the UaF issue in listener shutdown According to Christoph’s report after refactoring the passive socket initialization, the mptcp listener shutdown path is vulnerable to a UaF issue. BUG: KASAN: Use-after-free in...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ipvs: fixed an error in ipvscleanupbatch. During the initialization of ipvsconnnetinit, if the files ipvsconn or ipvsconnsync fail to be created, the initialization is successful by default. Therefore, the ipvsconn or...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ipvs: fixed an error in ipvsappnetcleanup During the initialization of ipvsappnetinit, if the file ipvsapp fails to be created, the initialization will still succeed by default. Therefore, the ipvsapp file will not be found durin...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: PCI: Fixed NULL dereferencing in the error path during SR-IOV VF creation. Fixed issues when virtfn setup fails, preventing NULL pointer dereferencing during device removal. The kernel error occurred due to incorrect error...

Astra Linux – Vulnerability in Linux, Linux 5.10

A flaw in the Linux kernel is found in the nfcmrvlnciunregisterdev function in the drivers/nfc/nfcmrvl/main.c file. This flaw can cause both read and write operations to be performed after the device has been freed, without synchronization between the cleanup routine and the firmware download...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: netfilter: nftables: Clean up the hook list when the offload flag check fails Resuspend the hook list so that nftchainreleasehook has a chance to release the hooks. BUG: Memory leak Unreferenced object 0xffff88810180b100 size...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In the “block” section, there’s a issue where rq and qos structures are released without the disk being handled first. The blkcginitqueue function may add these structures to the request queue. Previously, the blkcleanupqueue...

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

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: A leak was fixed in devfreqdevrelease. The srcuinitnotifierhead function allocates resources that need to be released using a srcucleanupnotifierhead call. Reported by kmemleak...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxtre: The order of calling ibdeviceunalloc should be adjusted to avoid UAF Use-after-Allocation. The call to ibdeallocdevice should only be made after the device is cleaned up. The deallocation sequence needs to be correct...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: Cleanup of potential nfsdfile refcount leaks in the COPY code path. There are two different versions of the nfsd4copy structure. One is embedded within the compound structure and is used directly in synchronous copies. T...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xfrm: Also calls xfrmstatedeletetunnel at the time of destruction for states that were never added. In commit b441cf3f8c4b “xfrm: deletes x-tunnel as we delete x”, I missed the case where state creation fails between full...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/rxe: Clear all QP fields if creation failed rxeqpdocleanup relies on valid pointer values in QP for the properly created ones. However, if rxeqpfrominit fails, the QP fields may be filled with garbage, causing the followi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd: Fixed a NULL pointer dereferencing issue during device cleanup. When GPU initialization fails due to an unsupported HW block, IP blocks may have a NULL version pointer. During cleanup in amdgpudevicefinihw, the code call...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dm: fixed a use-after-free in dmcleanupzoneddev dmcleanupzoneddev uses a queue, so it must be called before blkcleanupdisk starts its execution: blkcleanupdisk-blkcleanupqueue-kobjectput-blkreleasequeue-...

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

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rxdatareassemblyskb on NCI device cleanup The rxdatareassemblyskb is stored during NCI data exchange for processing fragmented packets. It is only dropped when the last fragment is processed, or when an NTF packet...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fixed a leak of the rxgk context in rxgkverifyresponse. Fixed rxgkverifyresponse to properly clean up the rxgk context it creates...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: perf/core: Fixed a reference count bug and a potential UAF in perfmmap. Syzkaller reported a refcountt issue where the increment of the reference count was set to 0; there was also a warning about a use-after-free when using...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: md/raid5-cache: fixed a deadlock in r5lexitlog. The commit b13015af94cf “md/raid5-cache: Clear conf-log after finishing work” introduced a new problem: // The caller holds reconfigmutex r5lexitlog flushwork&log-disablewritebackwo...