Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fixed a use-after-free race condition for maps It is possible that before fastrpcfreemap is called, another thread may call fastrpcmaplookup and obtain a reference to a map that is about to be deleted. The function...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fixed the issue where mr-map was freed twice. The function rxemrcleanup, which attempts to free mr-map again, will be called when rxemrinituser fails. CPU: 0, PID: 4917, Comm: rdmaFlushserv, Kdump: loaded, Not tainted,...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: net/packet: fixed a slab-out-of-bounds access in packetrecvmsg syzbot found that when an AFPACKET socket uses PACKETCOPYTHRESH and mmap operations, tpacketrcv queues SkBs with garbage in skb-cb, causing an excessive copy...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: BPF, sockmap: Prevent lock inversion deadlock in mapdeleteelem operation. The syzkaller started using corpuses where a BPF tracing program deletes elements from a sockmap/sockhash map. Since BPF tracing programs can be invoked fr...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In statmountstring, most flags assign an output offset pointer offp, which is later updated with the string offset. However, in the cases of STATMOUNTMNTUIDMAP and STATMOUNTMNTGIDMAP, the struct fields are directly set instead of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/vmwgfx: Fixed the lifetime of the bo cursor memory. Cleanup operations can be performed while the atomic update is still active. This means that the memory acquired during the atomic update does not need to be invalidated ...

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

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Defer the release of the inner map when necessary When updating or deleting an inner map in the map array or map htab, the map may still be accessed by non-sleepable programs or sleepable programs. However, the...

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

In the Linux kernel, the following vulnerabilities have been resolved: bpf, cpumap: Handle skb as well when cleaning up ptrring. The following warning was reported when running xdpredirectcpu with both skbmode and stressmode enabled: ------------ Cut here ------------ Incorrect XDP memory type...

Astra Linux – Vulnerability in Firefox

The return value from gfx::SourceSurfaceSkia::Map wasn’t verified, which could potentially lead to a null pointer dereferencing. This vulnerability affects Firefox versions less than 110...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm: filemap: fix nrpages calculation overflow in filemapmappages When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very strange crash issues that appeared as “Bad page state”: "734.496287 BUG: Ba...

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...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Misc: pciendpointtest: Fixed the panic that occurs when calling pciendpointtestcopy,write,read The dmamapsingle function does not allow zero-length mappings. This can cause a panic. A panic was reported on the arm64...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: BPF: Zeroing allocated objects from slabs in the BPF memory allocator Currently, the freed elements in the BPF memory allocator may be reused immediately. For the htab map, reusing these elements will reinitialize special fields ...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Ensure that the kthread is running before the map update returns. The following warning was reported when running stress-mode enabled xdpredirectcpu with some RT threads: ---------- Cut here ------------ WARNING: CPU...

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 found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: x86/MCE/AMD: Use a u64 type for the bankmap. The maximum number of MCA banks is 64 MAXNRBANKS; see a0bc32b3cacf “x86/mce: Increase the maximum number of banks to 64”. However, the bankmap, which contains a bitfield indicating whi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix the dmabuf object leak in fastrpcmaplookup In fastrpcmaplookup, the dmabufget function is called to obtain a reference to the dmabuf object for comparison purposes. However, this reference is never released whe...

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: clocksource/drivers/cadence-ttc: Fixed a memory leak in ttctimerprobe. Matching reports: drivers/clocksource/timer-cadence-ttc.c: Line 529, ttctimerprobe; Warning: ‘timerbaseaddr’ from ofiomap is not released on lines...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: kernel/kexec: fixed the issue when the kexec target address is allocated in the CMA area. Description of the bug When I tested kexec with the latest kernel, I encountered the following warning: 40.712410 ------------ cut here ---...