CVE-2021-47522

In the Linux kernel, the following vulnerability has been resolved: HID: bigbenff: prevent null pointer dereference When emulating the device through uhid, there is a chance we don't have output reports and so reportfield is null...

CVE-2021-47521

In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in emspcmciaaddcard If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev-irq" instead. Also we should check if at least one channel was set up...

CVE-2021-47520

In the Linux kernel, the following vulnerability has been resolved: can: pchcan: pchcanrxnormal: fix use after free After calling netifreceiveskbskb, dereferencing skb is unsafe. Especially, the canframe cf which aliases skb memory is dereferenced just after the call netifreceiveskbskb. Reorderin...

CVE-2021-47520 can: pch_can: pch_can_rx_normal: fix use after free

In the Linux kernel, the following vulnerability has been resolved: can: pchcan: pchcanrxnormal: fix use after free After calling netifreceiveskbskb, dereferencing skb is unsafe. Especially, the canframe cf which aliases skb memory is dereferenced just after the call netifreceiveskbskb. Reorderin...

CVE-2021-47519

In the Linux kernel, the following vulnerability has been resolved: can: mcan: mcanreadfifo: fix memory leak in error branch In mcanreadfifo, if the second call to mcanfiforead fails, the function jump to the outfail label and returns without calling mcanreceiveskb. This means that the skb...

CVE-2021-47519 can: m_can: m_can_read_fifo: fix memory leak in error branch

In the Linux kernel, the following vulnerability has been resolved: can: mcan: mcanreadfifo: fix memory leak in error branch In mcanreadfifo, if the second call to mcanfiforead fails, the function jump to the outfail label and returns without calling mcanreceiveskb. This means that the skb...

CVE-2021-47518

In the Linux kernel, the following vulnerability has been resolved: nfc: fix potential NULL pointer deref in nfcgenldumpsesdone The done netlink callback nfcgenldumpsesdone should check if received argument is non-NULL, because its allocation could fail earlier in dumpit nfcgenldumpses...

CVE-2021-47517 ethtool: do not perform operations on net devices being unregistered

In the Linux kernel, the following vulnerability has been resolved: ethtool: do not perform operations on net devices being unregistered There is a short period between a net device starts to be unregistered and when it is actually gone. In that time frame ethtool operations could still be...

CVE-2021-47516

In the Linux kernel, the following vulnerability has been resolved: nfp: Fix memory leak in nfpcppareacacheadd In line 800 1, nfpcppareaalloc allocates and initializes a CPP area structure. But in line 807 2, when the cache is allocated failed, this CPP area structure is not freed, which will...

CVE-2021-47515

In the Linux kernel, the following vulnerability has been resolved: seg6: fix the iif in the IPv6 socket control block When an IPv4 packet is received, the iprcvcore... sets the receiving interface index into the IPv4 socket control block v5.16-rc4, net/ipv4/ipinput.c line 510: IPCBskb-iif =...

CVE-2021-47514 devlink: fix netns refcount leak in devlink_nl_cmd_reload()

In the Linux kernel, the following vulnerability has been resolved: devlink: fix netns refcount leak in devlinknlcmdreload While preparing my patch series adding netns refcount tracking, I spotted bugs in devlinknlcmdreload Some error paths forgot to release a refcount on a netns. To fix this, we...

CVE-2021-47512

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqpie: prevent dismantle issue For some reason, fqpiedestroy did not copy working code from piedestroy and other qdiscs, thus causing elusive bug. Before calling deltimersync&q-adapttimer, we need to ensure timer will...

CVE-2021-47511 ALSA: pcm: oss: Fix negative period/buffer sizes

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix negative period/buffer sizes The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with sizet. Due to that, a to...

CVE-2021-47509

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Limit the period size to 16MB Set the practical limit to the period size the fragment shift in OSS instead of a full 31bit; a too large value could lead to the exhaust of memory as we allocate temporary buffers of...

CVE-2021-47507 nfsd: Fix nsfd startup race (again)

In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix nsfd startup race again Commit bd5ae9288d64 "nfsd: register pernet ops last, unregister first" has re-opened rpcpipefsevent race against nfsdnetid registration registerpernetsubsys which has been fixed by commit...

CVE-2021-47507

In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix nsfd startup race again Commit bd5ae9288d64 "nfsd: register pernet ops last, unregister first" has re-opened rpcpipefsevent race against nfsdnetid registration registerpernetsubsys which has been fixed by commit...

CVE-2021-47505

In the Linux kernel, the following vulnerability has been resolved: aio: fix use-after-free due to missing POLLFREE handling signalfdpoll and binderpoll are special in that they use a waitqueue whose lifetime is the current task, rather than the struct file as is normally the case. This is okay f...

CVE-2021-47504

Removed by vendor...

CVE-2021-47501 i40e: Fix NULL pointer dereference in i40e_dbg_dump_desc

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix NULL pointer dereference in i40edbgdumpdesc When trying to dump VFs VSI RX/TX descriptors using debugfs there was a crash due to NULL pointer dereference in i40edbgdumpdesc. Added a check to i40edbgdumpdesc that checks ...

CVE-2021-47502

CVE-2021-47502 relates to the Linux kernel ASoC: codecs: wcd934x driver. The issue is improper handling of channel mapping lists where a channel could be added to multiple DAI channel lists, risking corruption of a list that already contains the channel. The linked Astra Linux advisory confirms a...