CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46987 – btrfs: fix deadlock when cloning inline extents and using qgroups
https://notcve.org/view.php?id=CVE-2021-46987
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock when cloning inline extents and using qgroups There are a few exceptional cases where cloning an inline extent needs to copy the inline extent data into a page of the destination inode. When this happens, we end up starting a transaction while having a dirty page for the destination inode and while having the range locked in the destination's inode iotree too. Because when reserving metadata space for a transaction we ma... • https://git.kernel.org/stable/c/c53e9653605dbf708f5be02902de51831be4b009 •
CVSS: 6.2EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46986 – usb: dwc3: gadget: Free gadget structure only after freeing endpoints
https://notcve.org/view.php?id=CVE-2021-46986
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: Free gadget structure only after freeing endpoints As part of commit e81a7018d93a ("usb: dwc3: allocate gadget structure dynamically") the dwc3_gadget_release() was added which will free the dwc->gadget structure upon the device's removal when usb_del_gadget_udc() is called in dwc3_gadget_exit(). However, simply freeing the gadget results a dangling pointer situation: the endpoints created in dwc3_gadget_init_endpoints() ... • https://git.kernel.org/stable/c/e81a7018d93a7de31a3f121c9a7eecd0a5ec58b0 •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2021-46985 – ACPI: scan: Fix a memory leak in an error handling path
https://notcve.org/view.php?id=CVE-2021-46985
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: ACPI: scan: Fix a memory leak in an error handling path If 'acpi_device_set_name()' fails, we must free 'acpi_device_bus_id->bus_id' or there is a (potential) memory leak. En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: ACPI: scan: Corregir pérdida de memoria en una ruta de manejo de errores Si falla 'acpi_device_set_name()' debemos liberar 'acpi_device_bus_id->bus_id' o hay una (potencial) memoria filtración. In the Li... • https://git.kernel.org/stable/c/e5cdbe419004e172f642e876a671a9ff1c52f8bb •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2021-46984 – kyber: fix out of bounds access when preempted
https://notcve.org/view.php?id=CVE-2021-46984
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: kyber: fix out of bounds access when preempted __blk_mq_sched_bio_merge() gets the ctx and hctx for the current CPU and passes the hctx to ->bio_merge(). kyber_bio_merge() then gets the ctx for the current CPU again and uses that to get the corresponding Kyber context in the passed hctx. However, the thread may be preempted between the two calls to blk_mq_get_ctx(), and the ctx returned the second time may no longer correspond to the passed... • https://git.kernel.org/stable/c/a6088845c2bf754d6cb2572b484180680b037804 • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46983 – nvmet-rdma: Fix NULL deref when SEND is completed with error
https://notcve.org/view.php?id=CVE-2021-46983
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: nvmet-rdma: Fix NULL deref when SEND is completed with error When running some traffic and taking down the link on peer, a retry counter exceeded error is received. This leads to nvmet_rdma_error_comp which tried accessing the cq_context to obtain the queue. The cq_context is no longer valid after the fix to use shared CQ mechanism and should be obtained similar to how it is obtained in other functions from the wc->qp. [ 905.786331] nvmet_r... • https://git.kernel.org/stable/c/ca0f1a8055be2a04073af435dc68419334481638 • CWE-476: NULL Pointer Dereference •
CVSS: 6.3EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46982 – f2fs: compress: fix race condition of overwrite vs truncate
https://notcve.org/view.php?id=CVE-2021-46982
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix race condition of overwrite vs truncate pos_fsstress testcase complains a panic as belew: ------------[ cut here ]------------ kernel BUG at fs/f2fs/compress.c:1082! invalid opcode: 0000 [#1] SMP PTI CPU: 4 PID: 2753477 Comm: kworker/u16:2 Tainted: G OE 5.12.0-rc1-custom #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014 Workqueue: writeback wb_workfn (flush-252:16) RIP: 0010:prepare_compr... • https://git.kernel.org/stable/c/4c8ff7095bef64fc47e996a938f7d57f9e077da3 •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2021-46981 – nbd: Fix NULL pointer in flush_workqueue
https://notcve.org/view.php?id=CVE-2021-46981
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flush_workqueue Open /dev/nbdX first, the config_refs will be 1 and the pointers in nbd_device are still null. Disconnect /dev/nbdX, then reference a null recv_workq. The protection by config_refs in nbd_genl_disconnect is useless. [ 656.366194] BUG: kernel NULL pointer dereference, address: 0000000000000020 [ 656.368943] #PF: supervisor write access in kernel mode [ 656.369844] #PF: error_code(0x0002) - not-present... • https://git.kernel.org/stable/c/e9e006f5fcf2bab59149cb38a48a4817c1b538b4 •
CVSS: 7.1EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46980 – usb: typec: ucsi: Retrieve all the PDOs instead of just the first 4
https://notcve.org/view.php?id=CVE-2021-46980
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Retrieve all the PDOs instead of just the first 4 commit 4dbc6a4ef06d ("usb: typec: ucsi: save power data objects in PD mode") introduced retrieval of the PDOs when connected to a PD-capable source. But only the first 4 PDOs are received since that is the maximum number that can be fetched at a time given the MESSAGE_IN length limitation (16 bytes). However, as per the PD spec a connected source may advertise up to a maxim... • https://git.kernel.org/stable/c/4dbc6a4ef06d6a79ff91be6fc2e90f8660031ce0 •
CVSS: 7.1EPSS: 0%CPEs: 3EXPL: 0CVE-2021-46979 – iio: core: fix ioctl handlers removal
https://notcve.org/view.php?id=CVE-2021-46979
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: iio: core: fix ioctl handlers removal Currently ioctl handlers are removed twice. For the first time during iio_device_unregister() then later on inside iio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask(). Double free leads to kernel panic. Fix this by not touching ioctl handlers list directly but rather letting code responsible for registration call the matching cleanup routine itself. En el kernel de Linux, se ha resuel... • https://git.kernel.org/stable/c/8dedcc3eee3aceb37832176f0a1b03d5687acda3 •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2021-46978 – KVM: nVMX: Always make an attempt to map eVMCS after migration
https://notcve.org/view.php?id=CVE-2021-46978
28 Feb 2024 — In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Always make an attempt to map eVMCS after migration When enlightened VMCS is in use and nested state is migrated with vmx_get_nested_state()/vmx_set_nested_state() KVM can't map evmcs page right away: evmcs gpa is not 'struct kvm_vmx_nested_state_hdr' and we can't read it from VP assist page because userspace may decide to restore HV_X64_MSR_VP_ASSIST_PAGE after restoring nested state (and QEMU, for example, does exactly that). T... • https://git.kernel.org/stable/c/0faceb7d6dda6f370ff1fa0464d7180f7e5cb417 •