Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from not setting the job pointer to null after a job completes. An attacker exploiting this vulnerability could cause...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bnxtre: Avoid undefined behavior in bnxtqpliballocinithwq. Undefined behavior occurs when bnxtqpliballocinithwq is called with hwqattr-auxdepth != 0 and hwqattr-auxstride == 0. In that case, rounduppowoftwohwqattr-auxstride is...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: HID: amdsfh: Free driverdata after destroying the hid device Driver callbacks for HID are no longer called after the hiddestroydevice function is called. Therefore, the driverdata should only be freed after the hiddestroydevic...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Avoiding hwdesc array overrun in dw-axi-dmac I have a use case where nrbuffers = 3, and each descriptor consists of 3 segments. As a result, the DMA channel descriptors allocated are 9. Since axidescput handles the hwdesc by...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mm/vmalloc: fixed vmalloc, which may return null if called with GFPNOFAIL. The commit a421ef303008 "mm: allow !GFPKERNEL allocations for kvmalloc" includes support for GFPNOFAIL, but it creates a conflict with the commit...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: nfsd: Calling cacheput when xdrreservespace returns NULL If there is not enough buffer space available, but idmaplookup triggers lookupfn, which calls cacheget and returns successfully. In this case, we fail to call cacheput, whi...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: crypto: bcm – Fix pointer arithmetic In spu2dumpomd, the value of ptr is increased by ciphkeylen, instead of hashivlen. This could lead to exceeding the buffer boundaries. This bug has been fixed by changing ciphkeylen to...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: “mm/writeback: fix possible divide-by-zero in wbdirtylimits, again” This issue was addressed by reverting to the previous behavior. The patch series “mm: Avoid possible overflows in dirty throttling” also addresses this issue. Th...

kernel: media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format

A vulnerability was found in the Linux kernel's USB Video Class driver. A buffer for video frame data is allocated, which does not account for all of the frame formats contained in a video stream, leading to an out-of-bounds write when a stream includes frames with an undefined format. An attacke...

PT-2025-22203

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A vulnerability in the Linux kernel has been resolved. The issue was related to the HID pidff, where the pool report was sometimes incorrect, causing problems on certain devices, such as...

PT-2025-14277 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability in the Linux kernel has been resolved. The issue was related to the use of folio readahead code, which dropped the reference on the folio once it was locked. This cause...

CVE-2025-21693

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: properly synchronize freeing resources during CPU hotunplug In zswapcompress and zswapdecompress, the per-CPU acompctx of the current CPU at the beginning of the operation is retrieved and used throughout. However, sin...

CVE-2025-21693

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: properly synchronize freeing resources during CPU hotunplug In zswapcompress and zswapdecompress, the per-CPU acompctx of the current CPU at the beginning of the operation is retrieved and used throughout. However, sin...

CVE-2025-21692 net: sched: fix ets qdisc OOB Indexing

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix ets qdisc OOB Indexing Haowei Yan found that etsclassfromarg can index an Out-Of-Bound class in etsclassfromarg when passed clid of 0. The overflow may cause local privilege escalation. 18.852298 ------------ cut...

CVE-2025-21691

The CVE-2025-21691 entry concerns the Linux kernel cachestat syscall. The issue arose because the cachestat() addition did not include the writability/ownership permission check that mincore() had, allowing potential misuse when reading page cache stats. The connected advisories confirm a code-le...

CVE-2025-21691

In the Linux kernel, the following vulnerability has been resolved: cachestat: fix page cache statistics permission checking When the 'cachestat' system call was added in commit cf264e1329fb "cachestat: implement cachestat syscall", it was meant to be a much more convenient and performant version...

CVE-2025-21690 scsi: storvsc: Ratelimit warning logs to prevent VM denial of service

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service If there's a persistent error in the hypervisor, the SCSI warning for failed I/O can flood the kernel log and max out CPU utilization, preventing troubleshooti...

CVE-2025-21689

The CVE concerns Linux kernel USB: serial (quatech2) where qt2_process_read_urb() could dereference NULL due to an out-of-bounds access. The root cause was an incorrect bounds check using if (newport > serial->num_ports) which allowed newport to reach serial->num_ports and make port NULL...

CVE-2025-21689

In the Linux kernel, the following vulnerability has been resolved: USB: serial: quatech2: fix null-ptr-deref in qt2processreadurb This patch addresses a null-ptr-deref in qt2processreadurb due to an incorrect bounds check in the following: if newport serial-numports deverr&port-dev, "%s - port...

CVE-2025-21687 vfio/platform: check the bounds of read/write syscalls

In the Linux kernel, the following vulnerability has been resolved: vfio/platform: check the bounds of read/write syscalls count and offset are passed from user space and not checked, only offset is capped to 40 bits, which can be used to read/write out of bounds of the device...