CVE-2021-47373 irqchip/gic-v3-its: Fix potential VPE leak on error

In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In itsvpeirqdomainalloc, when itsvpeinit returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which...

CVE-2021-47365 afs: Fix page leak

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

CVE-2021-47362 drm/amd/pm: Update intermediate power state for SI

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: Update intermediate power state for SI Update the current state as boot state during dpm initialization. During the subsequent initialization, setpowerstate gets called to transition to the final power state...

CVE-2021-47357 atm: iphase: fix possible use-after-free in ia_module_exit()

In the Linux kernel, the following vulnerability has been resolved: atm: iphase: fix possible use-after-free in iamoduleexit This module's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running afte...

CVE-2021-47343 dm btree remove: assign new_root only when removal succeeds

In the Linux kernel, the following vulnerability has been resolved: dm btree remove: assign newroot only when removal succeeds removeraw in dmbtreeremove may fail due to IO read error e.g. read the content of origin block fails during shadowing, and the value of shadowspine::root is uninitialized...

CVE-2021-47341 KVM: mmio: Fix use-after-free Read in kvm_vm_ioctl_unregister_coalesced_mmio

In the Linux kernel, the following vulnerability has been resolved: KVM: mmio: Fix use-after-free Read in kvmvmioctlunregistercoalescedmmio BUG: KASAN: use-after-free in kvmvmioctlunregistercoalescedmmio+0x7c/0x1ec arch/arm64/kvm/../../../virt/kvm/coalescedmmio.c:183 Read of size 8 at addr...

CVE-2021-47340 jfs: fix GPF in diFree

In the Linux kernel, the following vulnerability has been resolved: jfs: fix GPF in diFree Avoid passing inode with JFSSBIinode-isb-ipimap == NULL to diFree1. GFP will appear: struct inode ipimap = JFSSBIip-isb-ipimap; struct inomap imap = JFSIPipimap-iimap; JFSIP will return invalid pointer when...

CVE-2021-47340 jfs: fix GPF in diFree

In the Linux kernel, the following vulnerability has been resolved: jfs: fix GPF in diFree Avoid passing inode with JFSSBIinode-isb-ipimap == NULL to diFree1. GFP will appear: struct inode ipimap = JFSSBIip-isb-ipimap; struct inomap imap = JFSIPipimap-iimap; JFSIP will return invalid pointer when...

CVE-2021-47334 misc/libmasm/module: Fix two use after free in ibmasm_init_one

In the Linux kernel, the following vulnerability has been resolved: misc/libmasm/module: Fix two use after free in ibmasminitone In ibmasminitone, it calls ibmasminitremoteinputdev. Inside ibmasminitremoteinputdev, mousedev and keybddev are allocated by inputallocatedevice, and assigned to...

CVE-2021-47322 NFSv4: Fix an Oops in pnfs_mark_request_commit() when doing O_DIRECT

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix an Oops in pnfsmarkrequestcommit when doing ODIRECT Fix an Oopsable condition in pnfsmarkrequestcommit when we're putting a set of writes on the commit list to reschedule them after a failed pNFS attempt...

CVE-2021-47321 watchdog: Fix possible use-after-free by calling del_timer_sync()

In the Linux kernel, the following vulnerability has been resolved: watchdog: Fix possible use-after-free by calling deltimersync This driver's remove path calls deltimer. However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running...

CVE-2021-47316 nfsd: fix NULL dereference in nfs3svc_encode_getaclres

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix NULL dereference in nfs3svcencodegetaclres In error cases the dentry may be NULL. Before 20798dfe249a, the encoder also checked dentry and dreallyispositivedentry, but that looks like overkill to me--zero status should ...

CVE-2021-47305

In CVE-2021-47305, the Linux kernel’s dma-buf/sync_file implementation leaks fences on error paths due to missing dma_fence_put() calls when merging fences and in krealloc_array failure. The fix ensures i and the fences array are zero-initialized and that all fences are dma_fence_put() and the fe...

CVE-2021-47303 bpf: Track subprog poke descriptors correctly and fix use-after-free

In the Linux kernel, the following vulnerability has been resolved: bpf: Track subprog poke descriptors correctly and fix use-after-free Subprograms are calling mappoketrack, but on program release there is no hook to call mappokeuntrack. However, on program release, the aux memory and poke...

CVE-2021-47297 net: fix uninit-value in caif_seqpkt_sendmsg

In the Linux kernel, the following vulnerability has been resolved: net: fix uninit-value in caifseqpktsendmsg When nrsegs equal to zero in iovecfromuser, the object msg-msgiter.iov is uninit stack memory in caifseqpktsendmsg which is defined in syssendmsg. So we cann't just judge...

CVE-2021-47297 net: fix uninit-value in caif_seqpkt_sendmsg

In the Linux kernel, the following vulnerability has been resolved: net: fix uninit-value in caifseqpktsendmsg When nrsegs equal to zero in iovecfromuser, the object msg-msgiter.iov is uninit stack memory in caifseqpktsendmsg which is defined in syssendmsg. So we cann't just judge...

CVE-2021-47294 netrom: Decrease sock refcount when sock timers expire

In the Linux kernel, the following vulnerability has been resolved: netrom: Decrease sock refcount when sock timers expire Commit 63346650c1a9 "netrom: switch to sock timer API" switched to use sock timer API. It replaces modtimer by skresettimer, and deltimer by skstoptimer. Function skresettime...

CVE-2021-47266 RDMA/ipoib: Fix warning caused by destroying non-initial netns

In the Linux kernel, the following vulnerability has been resolved: RDMA/ipoib: Fix warning caused by destroying non-initial netns After the commit 5ce2dced8e95 "RDMA/ipoib: Set rtnllinkops for ipoib interfaces", if the IPoIB device is moved to non-initial netns, destroying that netns lets the...

CVE-2021-47261 IB/mlx5: Fix initializing CQ fragments buffer

In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix initializing CQ fragments buffer The function initcqfragbuf can be called to initialize the current CQ fragments buffer cq-buf, or the temporary cq-resizebuf that is filled during CQ resize operation. However, the...

CVE-2021-47261 IB/mlx5: Fix initializing CQ fragments buffer

In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix initializing CQ fragments buffer The function initcqfragbuf can be called to initialize the current CQ fragments buffer cq-buf, or the temporary cq-resizebuf that is filled during CQ resize operation. However, the...