CVE-2021-47560

The CVE-2021-47560 issue affects the Linux kernel mlxsw: spectrum driver. When processing port up/down events from device firmware, the driver failed to bail out for CPU port 0 (local port 0), which exists but lacks a netdev, risking a NULL pointer dereference on netif_carrier_{on,off}(). The emb...

CVE-2021-47549 sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl

In the Linux kernel, the following vulnerability has been resolved: satafsl: fix UAF in satafslportstop when rmmod satafsl When the rmmod satafsl.ko command is executed in the PPC64 GNU/Linux, a bug is reported: ================================================================== BUG: Unable to...

CVE-2021-47541

CVE-2021-47541 targets the Linux kernel mlx4_en driver. In mlx4_en_try_alloc_resources(), mlx4_en_copy_priv() may free tmp->tx_cq on the error path, and later mlx4_en_alloc_resources() dereferences &tmp->tx_cq[t][i], risking a use-after-free. The fix adds a guard/check around mlx4_en_copy_p...

CVE-2021-47539 rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix rxrpcpeer leak in rxrpclookupbundle Need to call rxrpcputpeer for bundle candidate before kfree as it holds a ref to rxrpcpeer. DH: v2: Changed to abstract out the bundle freeing code into a function...

CVE-2021-47530 drm/msm: Fix wait_fence submitqueue leak

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix waitfence submitqueue leak We weren't dropping the submitqueue reference in all paths. In particular, when the fence has already been signalled. Split out a helper to simplify handling this in the various different...

CVE-2021-47526 serial: liteuart: Fix NULL pointer dereference in ->remove()

In the Linux kernel, the following vulnerability has been resolved: serial: liteuart: Fix NULL pointer dereference in -remove drvdata has to be set in probe - otherwise platformgetdrvdata causes null pointer dereference BUG in remove...

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 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-2021-47517 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-2021-47511 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-2021-47507 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-2021-47499 iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove

In the Linux kernel, the following vulnerability has been resolved: iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove When ACPI type is ACPISMO8500, the data-dreadytrig will not be set, the memory allocated by iiotriggeredbuffersetup will not be freed, and cause memory leak as...

CVE-2023-52835

In the Linux kernel, the following vulnerability has been resolved: perf/core: Bail out early if the request AUX area is out of bound When perf-record with a large AUX area, e.g 4GB, it fails with: perf record -C 0 -m ,4G -e armspe0// -- sleep 1 failed to mmap with 12 Cannot allocate memory and i...

CVE-2023-52803

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix RPC client cleaned up the freed pipefs dentries RPC client pipefs dentries cleanup is in separated rpcremovepipedir workqueue,which takes care about pipefs superblock locking. In some special scenarios, when kernel...

CVE-2023-52800

In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix htt pktlog locking The ath11k active pdevs are protected by RCU but the htt pktlog handling code calling ath11kmacgetarbypdevid was not marked as a read-side critical section. Mark the code in question as an RCU...

CVE-2023-52792

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Do not try to cleanup after cxlregionsetuptargets fails Commit 5e42bcbc3fef "cxl/region: decrement -nrtargets on error in cxlregionattach" tried to avoid 'eiw' initialization errors when -nrtargets exceeded 16, by jus...

CVE-2024-36011

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HCI: Fix potential null-ptr-deref Fix potential null-ptr-deref in hcilebigsyncestablishedevt...

CVE-2021-47349

In the Linux kernel, the following vulnerability has been resolved: mwifiex: bring down link before deleting interface We can deadlock when rmmod'ing the driver or going through firmware reset, because the cfg80211unregisterwdev has to bring down the link for us, ... which then grab the same wiph...

CVE-2021-47430

In the Linux kernel, the following vulnerability has been resolved: x86/entry: Clear X86FEATURESMAP when CONFIGX86SMAP=n Commit 3c73b81a9164 "x86/entry, selftests: Further improve user entry sanity checks" added a warning if AC is set when in the kernel. Commit 662a0221893a3d "x86/entry: Fix AC...

CVE-2021-47497 nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells

In the Linux kernel, the following vulnerability has been resolved: nvmem: Fix shift-out-of-bound UBSAN with byte size cells If a cell has 'nbits' equal to a multiple of BITSPERBYTE the logic p &= GENMASKcell-nbits%BITSPERBYTE - 1, 0; will become undefined behavior because nbits modulo BITSPERBYT...