CVE-2022-50159

CVE-2022-50159 concerns the Linux kernel: the function that restores ima-kexec-buffer may read outside the addressable RAM if the previous kernel’s buffer lies beyond the new kernel’s memory map, risking kernel panic when booting with mem=X. A fix was implemented to validate the returned PFN rang...

CVE-2022-50159 of: check previous kernel's ima-kexec-buffer against memory bounds

In the Linux kernel, the following vulnerability has been resolved: of: check previous kernel's ima-kexec-buffer against memory bounds Presently imagetkexecbuffer doesn't check if the previous kernel's ima-kexec-buffer lies outside the addressable memory range. This can result in a kernel panic i...

CVE-2022-50159 of: check previous kernel's ima-kexec-buffer against memory bounds

In the Linux kernel, the following vulnerability has been resolved: of: check previous kernel's ima-kexec-buffer against memory bounds Presently imagetkexecbuffer doesn't check if the previous kernel's ima-kexec-buffer lies outside the addressable memory range. This can result in a kernel panic i...

CVE-2022-50132

CVE-2022-50132 (Linux kernel) affects the usb: cdns3 gadget code. The root cause is an invalid dereference when ep is NULL due to the placement of the priv_ep assignment. The vulnerability is resolved by changing the assignment location in cdns3_gadget_ep_dequeue() and cdns3_gadget_ep_enable(), p...

CVE-2022-50132 usb: cdns3: change place of 'priv_ep' assignment in cdns3_gadget_ep_dequeue(), cdns3_gadget_ep_enable()

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: change place of 'privep' assignment in cdns3gadgetepdequeue, cdns3gadgetepenable If 'ep' is NULL, result of eptocdns3epep is invalid pointer and its dereference with privep-cdns3dev may cause panic. Found by Linux...

CVE-2022-50103 sched, cpuset: Fix dl_cpu_busy() panic due to empty cs->cpus_allowed

In the Linux kernel, the following vulnerability has been resolved: sched, cpuset: Fix dlcpubusy panic due to empty cs-cpusallowed With cgroup v2, the cpuset's cpusallowed mask can be empty indicating that the cpuset will just use the effective CPUs of its parent. So cpusetcanattach can call...

CVE-2022-50103

CVE-2022-50103: In the Linux kernel, sched/cpuset handling with cgroup v2 can lead to a panic when cpus_allowed is empty, causing dl_cpu_busy() to crash due to an out-of-bounds percpu access. The fix uses the effective_cpus mask instead of cpus_allowed, for both v1 (where they’re the same) and v2...

CVE-2022-50096 x86/kprobes: Update kcb status flag after singlestepping

In the Linux kernel, the following vulnerability has been resolved: x86/kprobes: Update kcb status flag after singlestepping Fix kprobes to update kcb kprobes control block status flag to KPROBEHITSSDONE even if the kp-posthandler is not set. This bug may cause a kernel panic if another INT3 user...

CVE-2022-50096

CVE-2022-50096 – Linux kernel (x86/kprobes) : The issue arises from kprobes not correctly updating the kcb status flag after single-stepping, which could cause a kernel panic if another INT3 user runs immediately after due to misinterpretation of INT3 as kprobe single-stepping. The connected docu...

CVE-2022-50096 x86/kprobes: Update kcb status flag after singlestepping

In the Linux kernel, the following vulnerability has been resolved: x86/kprobes: Update kcb status flag after singlestepping Fix kprobes to update kcb kprobes control block status flag to KPROBEHITSSDONE even if the kp-posthandler is not set. This bug may cause a kernel panic if another INT3 user...

CVE-2022-50091 locking/csd_lock: Change csdlock_debug from early_param to __setup

In the Linux kernel, the following vulnerability has been resolved: locking/csdlock: Change csdlockdebug from earlyparam to setup The csdlockdebug kernel-boot parameter is parsed by the earlyparam function csdlockdebug. If set, csdlockdebug invokes staticbranchenable to enable csdlockwait feature...

CVE-2022-50091

CVE-2022-50091 concerns the Linux kernel where the boot-time parameter csdlock_debug was parsed via early_param, enabling static_branch in a manner that could dereference NULL under specific sparse memory configurations (arm64 with CONFIG_SPARSEMEM and SPARSEMEM_VMEMMAP settings, and powerpc due ...

CVE-2022-50091 locking/csd_lock: Change csdlock_debug from early_param to __setup

In the Linux kernel, the following vulnerability has been resolved: locking/csdlock: Change csdlockdebug from earlyparam to setup The csdlockdebug kernel-boot parameter is parsed by the earlyparam function csdlockdebug. If set, csdlockdebug invokes staticbranchenable to enable csdlockwait feature...

CVE-2022-50062

CVE-2022-50062 affects the Linux kernel net/bgmac path. The issue is a BUG_ON triggered by a race where, if an RX interrupt occurs between setting ring->end and netdev_sent_queue(), bgmac_dma_tx_free() can miscalculate the queue size when called from bgmac_poll(), causing a kernel BUG at lib/d...

CVE-2022-50058 vdpa_sim_blk: set number of address spaces and virtqueue groups

In the Linux kernel, the following vulnerability has been resolved: vdpasimblk: set number of address spaces and virtqueue groups Commit bda324fd037a "vdpasim: control virtqueue support" added two new fields nas, ngroups to vdpasimdevattr, but we forgot to initialize them for vdpasimblk. When...

CVE-2022-50058

CVE-2022-50058 affects the Linux kernel's vdpa_sim_blk: a missing initialization of nas and ngroups can cause a kernel NULL pointer dereference when creating a new vdpa_sim_blk device, leading to a panic in vhost_iotlb_add_range_ctx. The issue arises from commit changes adding nas/ngroups to vdpa...

CVE-2022-50044

CVE-2022-50044 stems from a race in the Linux kernel’s net: qrtr MHI channel handling. After enabling, an MHI event/interrupt can occur either before dev_set_drvdata is completed (causing qrtr-ns to fail service enumeration) or after dev_set_drvdata but before qrtr_endpoint_register (potential ke...

CVE-2022-49997

The CVE-2022-49997 issue affects the Linux kernel, specifically the net: lantiq_xrx200 driver. Root cause: when memory allocation fails, an invalid buffer address can be stored; using the descriptor again may cause a panic in build_skb(), resulting in an availability impact. Supported documents i...

CVE-2022-49997 net: lantiq_xrx200: restore buffer if memory allocation failed

In the Linux kernel, the following vulnerability has been resolved: net: lantiqxrx200: restore buffer if memory allocation failed In a situation where memory allocation fails, an invalid buffer address is stored. When this descriptor is used again, the system panics in the buildskb function when...

CVE-2022-49960 drm/i915: fix null pointer dereference

In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix null pointer dereference Asus chromebook CX550 crashes during boot on v5.17-rc1 kernel. The root cause is null pointer defeference of binext in tglgetbwinfo in drivers/gpu/drm/i915/display/intelbw.c. BUG: kernel NUL...