Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed the exclusive map memory leak When exclproghash is 0 and exclproghashsize is non-zero, the map also needs to be freed. Otherwise, the map memory will not be reclaimed, similar to the memory leak issue reported by syzbo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/gpusvm: fixed the usage of hmmpfntomaporder Handled the case where the hmm range partially covers a large page such as 2M. Otherwise, we might end up doing something unpleasant, such as mapping memory that is outside the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: fixed a chunk map leak in btrfsmapblock after btrfschunkmapnumcopies. Fixed a chunk map leak in btrfsmapblock: if we return early with -EINVAL, we are not freeing the chunk map that we just looked up...

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

In the Linux kernel, the following vulnerabilities have been resolved: hwmon: coretemp Fixed out-of-bounds memory access. Fixed a bug where pdata-cpumap was set before the out-of-bounds check. This issue may occur on systems with more than 128 cores per package...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/paprscm: Fixed the issue where elements of nvdimmeventsmap were leaking during calls to paprscmpmucheckevents, paprscmremove, and paprscmpmuregister. Additionally, the error paths in paprscmpmucheckevents were correcte...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: PCI: ofproperty: Return error for intmap allocation failure The “-ENOMEM” return value occurs when kcalloc fails to prevent a NULL pointer dereferencing in this case. bhelgaas: commit log...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net/mlx5e: Track xmit submissions to PTP WQ after populating the metadata map. Ensure that the skb is available in the metadata mapping to skbs before tracking the metadata index to detect undelivered CQEs. If the metadata ind...

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

In the Linux kernel, the following vulnerabilities have been resolved: BPF: Check rcureadlockTraceheld before calling BPF map helpers. These three BPFmaplookup,update,deleteelem helpers are also available for sleepable BPF programs. Therefore, add the corresponding lock assertion for sleepable BP...

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: bpf, sockmap: Fixed the race condition involving skb after locking changes. There is a race condition where the skb from the skpsockbacklog can be referenced after the user-space side has already consumed the skbuff using...

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 in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed a race condition in sockmapfree. sockmapfree calls releasesocksk without owning a reference to the socket. This could lead to a use-after-free, as syzbot identified this issue 1. Jakub Sitnicki already...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxtre: Fixed a possible memory leak. This issue occurs in bnxtresetupchipctx, when bnxtqplibmapdbbar fails; the driver does not free the memory allocated for “rdev-chipctx”...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Makes kvmgetvcuByCPUid more robust The kvmgetvcuByCPUid function takes a cpuid parameter of type int; therefore, the cpuid value can be negative. To make this function more robust, let kvmgetvcuByCPUid return NULL...

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: bpf: Reject unhashed sockets in bpfskassign The semantics for bpfskassign are as follows: c sk = somelookupfunc bpfskassignskb, sk bpfskreleasesk That is, the sk is not consumed by bpfskassign. Therefore, the function must ensure...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: x86/mm/identmap: Use GB pages only when a full GB page should be mapped. When identpudinit uses only GB pages to create identity maps, large ranges of addresses that are not actually requested can be included in the resulting...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: A memory barrier is required to ensure that the PTP WQ xmit submission tracking occurs after populating the metadatamap. Simply reordering the functions mlx5eptpmetadatamapput and mlx5eptpsqtrackmetadata within the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: A reference count leak was fixed in snruncoremmiomap. pcigetdevice will increase the reference count of the returned pcidev. Therefore, snruncoregetmcdev will return a pcidev with its reference count...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not drop the extentmap for free space inode on a write error While running the CI for an unrelated change, I encountered the following panic: with generic/648 on btrfsholesspacecache. Assertion failed: blockstart !=...

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

In the Linux kernel, the following vulnerabilities have been resolved: Tracing: Ensure visibility when inserting an element into tracingmap. Running the following two commands in parallel on a multi-processor AArch64 machine may occasionally generate an unexpected warning regarding duplicate...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mm/vma: Fixed a memory leak in mmapregion. The commit 605f6586ecf7 “mm/vma: No memory leak occurs when .mmapprepare swaps the file” handled the success path by skipping getfile via filedoesntneedget, but missed the error path...