CVE-2021-47409

In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: check return value after calling platform_get_resource() It will cause null-ptr-deref if platform_get_resource() returns NULL,we need check the return value.

CVE-2021-47500

In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iio_dev. TheIIO core when done using this trigger will call iio_trigger_put() to dropthe reference count by 1. Without the matc...

CVE-2021-47358

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must notrelease the underlying structures until the last user is gone. Switch to using the tty-port reference counter to man...

CVE-2021-47371

In the Linux kernel, the following vulnerability has been resolved: nexthop: Fix memory leaks in nexthop notification chain listeners syzkaller discovered memory leaks [1] that can be reduced to thefollowing commands: ip nexthop add id 1 blackhole devlink dev reload pci/0000:06:00.0 As part of the ...

CVE-2021-47423

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/debugfs: fix file release memory leak When using single_open() for opening, single_release() should becalled, otherwise the 'op' allocated in single_open() will be leaked.

CVE-2021-47426

In the Linux kernel, the following vulnerability has been resolved: bpf, s390: Fix potential memory leak about jit_data Make sure to free jit_data through kfree() in the error path.

CVE-2021-47482

In the Linux kernel, the following vulnerability has been resolved: net: batman-adv: fix error handling Syzbot reported ODEBUG warning in batadv_nc_mesh_free(). The problem wasin wrong error handling in batadv_mesh_init(). Before this patch batadv_mesh_init() was calling batadv_mesh_free() in caseo...

CVE-2021-47442

In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_in_send_sdd_req() 'skb' is allocated in digital_in_send_sdd_req(), but not free whendigital_in_send_cmd() failed, which will cause memory leak. Fix itby freeing 'skb' if digital_in_...

CVE-2021-47462

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: do not allow illegal MPOL_F_NUMA_BALANCING | MPOL_LOCAL in mbind() syzbot reported access to unitialized memory in mbind() [1] Issue came with commit bda420b98505 ("numa balancing: migrate on faultamong multiple bound...

CVE-2021-47365

In the Linux kernel, the following vulnerability has been resolved: afs: Fix page leak There's a loop in afs_extend_writeback() that adds extra pages to a writewe want to make to improve the efficiency of the writeback by making itlarger. This loop stops, however, if we hit a page we can't write ba...

CVE-2021-47399

In the Linux kernel, the following vulnerability has been resolved: ixgbe: Fix NULL pointer dereference in ixgbe_xdp_setup The ixgbe driver currently generates a NULL pointer dereference withsome machine (online cpus < 63). This is due to the fact that themaximum value of num_xdp_queues is nr_cp...

CVE-2021-47375

In the Linux kernel, the following vulnerability has been resolved: blktrace: Fix uaf in blk_trace access after removing by sysfs There is an use-after-free problem triggered by following process: P1(sda) P2(sdb) echo 0 > /sys/block/sdb/trace/enable blk_trace_remove_queue synchronize_rcu blk_tra...

CVE-2021-47382

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: fix deadlock during failing recovery Commit 0b9902c1fcc5 ("s390/qeth: fix deadlock during recovery") removedtaking discipline_mutex inside qeth_do_reset(), fixing potentialdeadlocks. An error path was missed though, that...

CVE-2021-47390

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Fix stack-out-of-bounds memory access from ioapic_write_indirect() KASAN reports the following issue: BUG: KASAN: stack-out-of-bounds in kvm_make_vcpus_request_mask+0x174/0x440 [kvm]Read of size 8 at addr ffffc9001364f638...

CVE-2021-47394

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: unlink table before deleting it syzbot reports following UAF:BUG: KASAN: use-after-free in memcmp+0x18f/0x1c0 lib/string.c:955nla_strcmp+0xf2/0x130 lib/nlattr.c:836nft_table_lookup.part.0+0x1a2/0x460 net/netfi...

CVE-2021-47439

In the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: Added the condition for scheduling ksz_mib_read_work When the ksz module is installed and removed using rmmod, kernel crasheswith null pointer dereferrence error. During rmmod, ksz_switch_removefunction tries t...

CVE-2021-47471

In the Linux kernel, the following vulnerability has been resolved: drm: mxsfb: Fix NULL pointer dereference crash on unload The mxsfb->crtc.funcs may already be NULL when unloading the driver,in which case calling mxsfb_irq_disable() via drm_irq_uninstall() frommxsfb_unload() leads to NULL poin...

CVE-2021-47406

In the Linux kernel, the following vulnerability has been resolved: ext4: add error checking to ext4_ext_replay_set_iblocks() If the call to ext4_map_blocks() fails due to an corrupted filesystem, ext4_ext_replay_set_iblocks() can get stuck in an infiniteloop. This could be reproduced by running ge...

CVE-2021-47427

In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsi_task use after free Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn")added iscsi_get_conn()/iscsi_put_conn() calls during abort handling butthen also changed the handling of the case whe...

CVE-2021-47440

In the Linux kernel, the following vulnerability has been resolved: net: encx24j600: check error in devm_regmap_init_encx24j600 devm_regmap_init may return error which caused by like out of memory,this will results in null pointer dereference later when readingor writing register: general protectio...

CVE-2021-47467

In the Linux kernel, the following vulnerability has been resolved: kunit: fix reference count leak in kfree_at_end The reference counting issue happens in the normal path ofkfree_at_end(). When kunit_alloc_and_get_resource() is invoked, thefunction forgets to handle the returned resource object, w...

CVE-2021-47506

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix use-after-free due to delegation race A delegation break could arrive as soon as we've called vfs_setlease. Adelegation break runs a callback which immediately (innfsd4_cb_recall_prepare) adds the delegation to del_recall...

CVE-2021-47361

In the Linux kernel, the following vulnerability has been resolved: mcb: fix error handling in mcb_alloc_bus() There are two bugs: If ida_simple_get() fails then this code calls put_device(carrier)but we haven't yet called get_device(carrier) and probably thatleads to a use after free. After device...

CVE-2021-47364

In the Linux kernel, the following vulnerability has been resolved: comedi: Fix memory leak in compat_insnlist() compat_insnlist() handles the 32-bit version of the COMEDI_INSNLISTioctl (whenwhen CONFIG_COMPAT is enabled). It allocates memory totemporarily hold an array of struct comedi_insn conver...

CVE-2021-47417

In the Linux kernel, the following vulnerability has been resolved: libbpf: Fix memory leak in strset Free struct strset itself, not just its internal parts.

CVE-2021-47422

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/kms/nv50-: fix file release memory leak When using single_open() for opening, single_release() should becalled, otherwise the 'op' allocated in single_open() will be leaked.

CVE-2021-47367

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix pages leaking when building skb in big mode We try to use build_skb() if we had sufficient tailroom. But we forgetto release the unused pages chained via private in big mode which willleak pages. Fixing this by rele...

CVE-2021-47397

In the Linux kernel, the following vulnerability has been resolved: sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb We should always check if skb_header_pointer's return is NULL beforeusing it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in r...

CVE-2021-47420

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix a potential ttm->sg memory leak Memory is allocated for ttm->sg by kmalloc in kfd_mem_dmamap_userptr,but isn't freed by kfree in kfd_mem_dmaunmap_userptr. Free it!

CVE-2021-47463

In the Linux kernel, the following vulnerability has been resolved: mm/secretmem: fix NULL page->mapping dereference in page_is_secretmem() Check for a NULL page->mapping before dereferencing the mapping inpage_is_secretmem(), as the page's mapping can be nullified while gup()is running, e.g....

CVE-2021-47360

In the Linux kernel, the following vulnerability has been resolved: binder: make sure fd closes complete During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA objectcleanup may close 1 or more fds. The close operations arecompleted using the task work mechanism -- which means the threadneeds to ret...

CVE-2021-47369

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: fix NULL deref in qeth_clear_working_pool_list() When qeth_set_online() calls qeth_clear_working_pool_list() to rollback after an error exit from qeth_hardsetup_card(), we are at risk ofaccessing card->qdio.in_q befor...

CVE-2021-47415

In the Linux kernel, the following vulnerability has been resolved: iwlwifi: mvm: Fix possible NULL dereference In __iwl_mvm_remove_time_event() check that 'te_data->vif' is NULLbefore dereferencing it.

CVE-2021-47437

In the Linux kernel, the following vulnerability has been resolved: iio: adis16475: fix deadlock on frequency set With commit 39c024b51b560("iio: adis16475: improve sync scale mode handling"), two deadlocks wereintroduced: The call to 'adis_write_reg_16()' was not changed to it's unlockedversion. T...

CVE-2021-47413

In the Linux kernel, the following vulnerability has been resolved: usb: chipidea: ci_hdrc_imx: Also search for 'phys' phandle When passing 'phys' in the devicetree to describe the USB PHY phandle(which is the recommended way according toDocumentation/devicetree/bindings/usb/ci-hdrc-usb2.txt) thefo...

CVE-2021-47363

In the Linux kernel, the following vulnerability has been resolved: nexthop: Fix division by zero while replacing a resilient group The resilient nexthop group torture tests in fib_nexthop.sh exposed apossible division by zero while replacing a resilient group [1]. Thedivision by zero occurs when t...

CVE-2021-47470

In the Linux kernel, the following vulnerability has been resolved: mm, slub: fix potential use-after-free in slab_debugfs_fops When sysfs_slab_add failed, we shouldn't call debugfs_slab_add() for sbecause s will be freed soon. And slab_debugfs_fops will use s laterleading to a use-after-free.