CVE-2022-49590 igmp: Fix data-races around sysctl_igmp_llm_reports.

In the Linux kernel, the following vulnerability has been resolved: igmp: Fix data-races around sysctligmpllmreports. While reading sysctligmpllmreports, it can be changed concurrently. Thus, we need to add READONCE to its readers. This test can be packed into a helper, so such changes will be in...

CVE-2022-49583 iavf: Fix handling of dummy receive descriptors

In the Linux kernel, the following vulnerability has been resolved: iavf: Fix handling of dummy receive descriptors Fix memory leak caused by not handling dummy receive descriptor properly. iavfgetrxbuffer now sets the rxbuffer return value for dummy receive descriptors. Without this patch, when...

CVE-2022-49580 ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix a data-race around sysctlfibmultipathuseneigh. While reading sysctlfibmultipathuseneigh, it can be changed concurrently. Thus, we need to add READONCE to its reader...

CVE-2022-49570 gpio: gpio-xilinx: Fix integer overflow

In the Linux kernel, the following vulnerability has been resolved: gpio: gpio-xilinx: Fix integer overflow Current implementation is not able to configure more than 32 pins due to incorrect data type. So type casting with unsigned long to avoid it...

CVE-2022-49568

CVE-2022-49568 affects the Linux kernel KVM code path, where a NULL dereference can occur during cleanup if destroy() is assumed non-NULL but is not (notably for some Book3s KVM devices that use release() instead). The root cause is an assumption in kvm_ioctl_create_device() that destroy() is alw...

CVE-2022-49565

CVE-2022-49565 concerns the Linux kernel, specifically perf/x86/intel/lbr, where unchecked MSR writes (WRMSR to 0x689) can occur due to an absent TSX quirk application when accessing LBR data. The issue manifests on systems with LBR_FORMAT_EIP_FLAGS2 and, if TSX is disabled, requires a quirk to a...

CVE-2022-49564 crypto: qat - add param check for DH

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - add param check for DH Reject requests with a source buffer that is bigger than the size of the key. This is to prevent a possible integer underflow that might happen when copying the source scatterlist into a linea...

CVE-2022-49562

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Use trycmpxchguser to update guest PTE A/D bits Use the recently introduced trycmpxchguser to update guest PTE A/D bits instead of mapping the PTE into kernel address space. The VMPFNMAP path is broken as it assumes tha...

CVE-2022-49559

CVE-2022-49559 (Linux kernel, KVM/x86) is resolved. The issue involved dropping WARNs that incorrectly assumed KVM cannot let a triple fault (KVM_REQ_TRIPLE_FAULT) escape from L2 to L1. The vulnerability could be triggered when userspace injects a machine check while L2 is active with CR4.MCE=0, ...

CVE-2022-49540 rcu-tasks: Fix race in schedule and flush work

In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Fix race in schedule and flush work While booting secondary CPUs, cpusreadlock/unlock is not keeping online cpumask stable. The transient online mask results in below calltrace. 0.324121 CPU1: Booted secondary processo...

CVE-2022-49538 ALSA: jack: Access input_dev under mutex

In the Linux kernel, the following vulnerability has been resolved: ALSA: jack: Access inputdev under mutex It is possible when using ASoC that inputdev is unregistered while calling sndjackreport, which causes NULL pointer dereference. In order to prevent this serialize access to inputdev using...

CVE-2022-49536

The CVE-2022-49536 entry concerns the Linux kernel SCSI LPFC deadlock in I/O completion and abort handling under heavy stress (500+ vports). Affected component is the lpfc driver within the SCSI subsystem. The root cause is a deadlock between the lpfc_cmd->buf_lock and phba->hbalock during ...

CVE-2022-49536 scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock During stress I/O tests with 500+ vports, hard LOCKUP call traces are observed. CPU A: nativequeuedspinlockslowpath+0x192 rawspinlockirqsave+0x32 lpfchandlefcperr+0x4...

CVE-2022-49536

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock During stress I/O tests with 500+ vports, hard LOCKUP call traces are observed. CPU A: nativequeuedspinlockslowpath+0x192 rawspinlockirqsave+0x32 lpfchandlefcperr+0x4...

CVE-2022-49531 loop: implement ->free_disk

In the Linux kernel, the following vulnerability has been resolved: loop: implement -freedisk Ensure that the lodevice which is stored in the gendisk private data is valid until the gendisk is freed. Currently the loop driver uses a lot of effort to make sure a device is not freed when it is stil...

CVE-2022-49523 ath11k: disable spectral scan during spectral deinit

In the Linux kernel, the following vulnerability has been resolved: ath11k: disable spectral scan during spectral deinit When ath11k modules are removed using rmmod with spectral scan enabled, crash is observed. Different crash trace is observed for each crash. Send spectral scan disable WMI...

CVE-2022-49522 mmc: jz4740: Apply DMA engine limits to maximum segment size

In the Linux kernel, the following vulnerability has been resolved: mmc: jz4740: Apply DMA engine limits to maximum segment size Do what is done in other DMA-enabled MMC host drivers cf. host/mmci.c and limit the maximum segment size based on the DMA engine's capabilities. This is needed to avoid...

CVE-2022-49516 ice: always check VF VSI pointer values

In the Linux kernel, the following vulnerability has been resolved: ice: always check VF VSI pointer values The icegetvfvsi function can return NULL in some cases, such as if handling messages during a reset where the VSI is being removed and recreated. Several places throughout the driver do not...

CVE-2022-49513 cpufreq: governor: Use kobject release() method to free dbs_data

In the Linux kernel, the following vulnerability has been resolved: cpufreq: governor: Use kobject release method to free dbsdata The struct dbsdata embeds a struct govattrset and the struct govattrset embeds a kobject. Since every kobject must have a release method and we can't use kfree to free...

CVE-2022-49506

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Add vblank register/unregister callback functions We encountered a kernel panic issue that callback data will be NULL when it's using in ovl irq handler. There is a timing issue between mtkdispovlirqhandler and...