CVE-2021-46979

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 duringiio_device_unregister() then later on insideiio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask().Double fr...

CVE-2021-46990

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix crashes when toggling entry flush barrier The entry flush mitigation can be enabled/disabled at runtime via adebugfs file (entry_flush), which causes the kernel to patch itself toenable/disable the relevant mitigat...

CVE-2021-46987

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 tocopy the inline extent data into a page of the destination inode. When this happens, we end ...

CVE-2021-46983

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, aretry counter exceeded error is received. This leads tonvmet_rdma_error_comp which tried accessing the cq_con...

CVE-2021-46985

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.

CVE-2021-47069

In the Linux kernel, the following vulnerability has been resolved: ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry do_mq_timedreceive calls wq_sleep with a stack local address. Thesender (do_mq_timedsend) uses this address to later call pipelined_send. This leads to a very...

CVE-2021-47072

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix removed dentries still existing after log is synced When we move one inode from one directory to another and both the inodeand its previous parent directory were logged before, we are not supposedto have the dentry for t...

CVE-2021-46989

In the Linux kernel, the following vulnerability has been resolved: hfsplus: prevent corruption in shrinking truncate I believe there are some issues introduced by commit 31651c607151("hfsplus: avoid deadlock on file truncation") HFS+ has extent records which always contains 8 extents. In case thef...

CVE-2021-46978

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 withvmx_get_nested_state()/vmx_set_nested_state() KVM can't map evmcspage right away: evmcs gpa is not 'str...

CVE-2021-47079

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ideapad-laptop: fix a NULL pointer dereference The third parameter of dytc_cql_command should not be NULL since it willbe dereferenced immediately.

CVE-2021-46981

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 andthe pointers in nbd_device are still null. Disconnect/dev/nbdX, then reference a null recv_workq. Theprotection by config_refs in nbd_genl_...

CVE-2021-47081

In the Linux kernel, the following vulnerability has been resolved: habanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory Our code analyzer reported a uaf. In gaudi_memset_device_memory, cb is get via hl_cb_kernel_create()with 2 refcount.If hl_cs_allocate_job() failed, the ...

CVE-2021-46976

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix crash in auto_retire The retire logic uses the 2 lower bits of the pointer to the retirefunction to store flags. However, the auto_retire function is notguaranteed to be aligned to a multiple of 4, which causes crashe...

CVE-2021-47274

In the Linux kernel, the following vulnerability has been resolved: tracing: Correct the length check which causes memory corruption We've suffered from severe kernel crashes due to memory corruption onour production environment, like, Call Trace:[1640542.554277] general protection fault: 0000 [#1]...

CVE-2021-46984

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 andpasses the hctx to ->bio_merge(). kyber_bio_merge() then gets the ctxfor the current CPU again and uses that ...

CVE-2021-47222

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dst_clone() and directly sets the resultwhich is wrong because the entry might have 0 refcnt or be already deleted,causing number of problems. It al...

CVE-2021-47118

In the Linux kernel, the following vulnerability has been resolved: pid: take a reference when initializing cad_pid During boot, kernel_init_freeable() initializes cad_pid to the inittask's struct pid. Later on, we may change cad_pid via a sysctl, andwhen this happens proc_do_cad_pid() will increme...

CVE-2021-47076

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Return CQE error if invalid lkey was supplied RXE is missing update of WQE status in LOCAL_WRITE failures. This causedthe following kernel panic if someone sent an atomic operation with anexplicitly wrong lkey. [leonro@vm...

CVE-2021-47073

In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios init_dell_smbios_wmi() only registers the dell_smbios_wmi_driver on systemswhere the Dell WMI interface is supported. While exit_dell_smbios_wmi()unregisters it unconditi...

CVE-2021-46988

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: release page in error path to avoid BUG_ON Consider the following sequence of events: Userspace issues a UFFD ioctl, which ends up calling intoshmem_mfill_atomic_pte(). We successfully account the blocks, weshmem_alloc...

CVE-2021-47074

In the Linux kernel, the following vulnerability has been resolved: nvme-loop: fix memory leak in nvme_loop_create_ctrl() When creating loop ctrl in nvme_loop_create_ctrl(), if nvme_init_ctrl()fails, the loop ctrl should be freed before jumping to the "out" label.

CVE-2021-47110

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Disable kvmclock on all CPUs on shutdown Currenly, we disable kvmclock from machine_shutdown() hook and thisonly happens for boot CPU. We need to disable it for all CPUs toguard against memory corruption e.g. on restore fr...

CVE-2021-46977

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disable preemption when probing user return MSRs Disable preemption when probing a user return MSR via RDSMR/WRMSR. Ifthe MSR holds a different value per logical CPU, the WRMSR could corruptthe host's value if KVM is pree...

CVE-2021-47078

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Clear all QP fields if creation failed rxe_qp_do_cleanup() relies on valid pointer values in QP for the properlycreated ones, but in case rxe_qp_from_init() failed it was filled withgarbage and caused tot the following er...

CVE-2021-47178

In the Linux kernel, the following vulnerability has been resolved: scsi: target: core: Avoid smp_processor_id() in preemptible code The BUG message "BUG: using smp_processor_id() in preemptible [00000000]code" was observed for TCMU devices with kernel config DEBUG_PREEMPT. The message was observed...

CVE-2021-47238

In the Linux kernel, the following vulnerability has been resolved: net: ipv4: fix memory leak in ip_mc_add1_src BUG: memory leakunreferenced object 0xffff888101bc4c00 (size 32):comm "syz-executor527", pid 360, jiffies 4294807421 (age 19.329s)hex dump (first 32 bytes):00 00 00 00 00 00 00 00 00 00 ...

CVE-2021-47070

In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix another memory leak in error handling paths Memory allocated by 'vmbus_alloc_ring()' at the beginning of the probefunction is never freed in the error handling path. Add the missing 'vmbus_free_ring()' call. Not...

CVE-2021-47257

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: fix null deref in parse dev addr Fix a logic error that could result in a null deref if the user setsthe mode incorrectly for the given addr type.

CVE-2021-46982

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 PTICPU: 4 PID: 27...

CVE-2021-47080

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Prevent divide-by-zero error triggered by the user The user_entry_size is supplied by the user and later used as adenominator to calculate number of entries. The zero supplied by the userwill trigger the following divide...

CVE-2021-47172

In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad7124: Fix potential overflow due to non sequential channel numbers Channel numbering must start at 0 and then not have any holes, orit is possible to overflow the available storage. Note this bug wasintroduced as part o...

CVE-2021-47177

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix sysfs leak in alloc_iommu() iommu_device_sysfs_add() is called before, so is has to be cleaned on subsequenterrors.

CVE-2021-46986

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 structuredynamically") the dwc3_gadget_release() was added which will freethe dwc->gadget structur...

CVE-2021-47124

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix link timeout refs WARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28RIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28Call Trace:__refcount_sub_and_test in...

CVE-2021-47126

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions Reported by syzbot:HEAD commit: 90c911ad Merge tag 'fixes' of git://git.kernel.org/pub/scm..git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux...

CVE-2021-47236

In the Linux kernel, the following vulnerability has been resolved: net: cdc_eem: fix tx fixup skb leak when usbnet transmit a skb, eem fixup it in eem_tx_fixup(),if skb_copy_expand() failed, it return NULL,usbnet_start_xmit() will have no chance to free original skb. fix it by free orginal skb in ...

CVE-2021-47077

In the Linux kernel, the following vulnerability has been resolved: scsi: qedf: Add pointer checks in qedf_update_link_speed() The following trace was observed: [ 14.042059] Call Trace:[ 14.042061] <IRQ>[ 14.042068] qedf_link_update+0x144/0x1f0 [qedf][ 14.042117] qed_link_update+0x5c/0x80 [qe...

CVE-2021-47131

In the Linux kernel, the following vulnerability has been resolved: net/tls: Fix use-after-free after the TLS device goes down and up When a netdev with active TLS offload goes down, tls_device_down iscalled to stop the offload and tear down the TLS context. However, thesocket stays alive, and it s...

CVE-2021-47221

In the Linux kernel, the following vulnerability has been resolved: mm/slub: actually fix freelist pointer vs redzoning It turns out that SLUB redzoning ("slub_debug=Z") checks froms->object_size rather than from s->inuse (which is normally bumped tomake room for the freelist pointer), so a c...

CVE-2021-46980

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 objectsin PD mode") introduced retrieval of the PDOs when connected to aPD-capable source. But only the fir...

CVE-2021-47075

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix memory leak in nvmet_alloc_ctrl() When creating ctrl in nvmet_alloc_ctrl(), if the cntlid_min is largerthan cntlid_max of the subsystem, and jumps to the"out_free_changed_ns_list" label, but the ctrl->sqs lack of be f...

CVE-2021-47135

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix possible AOOB issue in mt7921_mcu_tx_rate_report Fix possible array out of bound access in mt7921_mcu_tx_rate_report.Remove unnecessary varibable in mt7921_mcu_tx_rate_report

CVE-2021-47136

In the Linux kernel, the following vulnerability has been resolved: net: zero-initialize tc skb extension on allocation Function skb_ext_add() doesn't initialize created skb extension with anyvalue and leaves it up to the user. However, since extension of typeTC_SKB_EXT originally contained only si...

CVE-2021-47071

In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix a memory leak in error handling paths If 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not beupdated and 'hv_uio_cleanup()' in the error handling path will not beable to free the corresponding buff...

CVE-2021-47119

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_fill_super Buffer head references must be released before calling kill_bdev();otherwise the buffer head (and its page referenced by b_data) will notbe freed by kill_bdev, and subsequently that bh will ...

CVE-2021-47142

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix a use-after-free looks like we forget to set ttm->sg to NULL.Hit panic below [ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI[ 12...

CVE-2021-47176

In the Linux kernel, the following vulnerability has been resolved: s390/dasd: add missing discipline function Fix crash with illegal operation exception in dasd_device_tasklet.Commit b72949328869 ("s390/dasd: Prepare for additional path event handling")renamed the verify_path function for ECKD but...

CVE-2021-47165

In the Linux kernel, the following vulnerability has been resolved: drm/meson: fix shutdown crash when component not probed When main component is not probed, by example when the dw-hdmi module isnot loaded yet or in probe defer, the following crash appears on shutdown: Unable to handle kernel NULL...

CVE-2021-47260

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a potential NULL dereference in nfs_get_client() None of the callers are expecting NULL returns from nfs_get_client() sothis code will lead to an Oops. It's better to return an errorpointer. I expect that this is dead code...

CVE-2021-47267

In the Linux kernel, the following vulnerability has been resolved: usb: fix various gadget panics on 10gbps cabling usb_assign_descriptors() is called with 5 parameters,the last 4 of which are the usb_descriptor_header for:full-speed (USB1.1 - 12Mbps [including USB1.0 low-speed @ 1.5Mbps),high-spe...