CVE-2021-47024

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: free queued packets when closing socket As reported by syzbot 1, there is a memory leak while closing the socket. We partially solved this issue with commit ac03046ece2b "vsock/virtio: free packets during the socket...

CVE-2021-47019 mt76: mt7921: fix possible invalid register access

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix possible invalid register access Disable the interrupt and synchronze for the pending irq handlers to ensure the irq tasklet is not being scheduled after the suspend to avoid the possible invalid register access...

CVE-2021-47013 net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send

In the Linux kernel, the following vulnerability has been resolved: net:emac/emac-mac: Fix a use after free in emacmactxbufsend In emacmactxbufsend, it calls emactxfilltpd..,skb,... If some error happens in emactxfilltpd, the skb will be freed via devkfreeskbskb in error branch of emactxfilltpd...

CVE-2021-47010 net: Only allow init netns to set default tcp cong to a restricted algo

In the Linux kernel, the following vulnerability has been resolved: net: Only allow init netns to set default tcp cong to a restricted algo tcpsetdefaultcongestioncontrol is netns-safe in that it writes to &net-ipv4.tcpcongestioncontrol, but it also sets ca-flags |= TCPCONGNONRESTRICTED which is...

CVE-2021-47007 f2fs: fix panic during f2fs_resize_fs()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix panic during f2fsresizefs f2fsresizefs hangs in below callstack with testcase: - mkfs 16GB image & mount image - dd 8GB fileA - dd 8GB fileB - sync - rm fileA - sync - resize filesystem to 8GB kernel BUG at...

CVE-2021-47008

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Make sure GHCB is mapped before updating Access to the GHCB is mainly in the VMGEXIT path and it is known that the GHCB will be mapped. But there are two paths where it is possible the GHCB might not be mapped. The...

CVE-2021-47006

CVE-2021-47006 relates to the ARM hw_breakpoint path in the Linux kernel. The issue arises from perf_event_alloc() setting a default event->overflow_handler and replacing the overflow_handler check with is_default_overflow_handler(), but one condition remains missing: bp->overflow_handler m...

CVE-2021-47003

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix potential null dereference on pointer status There are calls to idxdcmdexec that pass a null status pointer however a recent commit has added an assignment to status that can end up with a null pointer...

CVE-2021-47000 ceph: fix inode leak on getattr error in __fh_to_dentry

In the Linux kernel, the following vulnerability has been resolved: ceph: fix inode leak on getattr error in fhtodentry...

CVE-2021-46999 sctp: do asoc update earlier in sctp_sf_do_dupcook_a

In the Linux kernel, the following vulnerability has been resolved: sctp: do asoc update earlier in sctpsfdodupcooka There's a panic that occurs in a few of envs, the call trace is as below: general protection fault, ... 0x29acd70f1000a: 0000 1 SMP PTI RIP:...

CVE-2021-46999 sctp: do asoc update earlier in sctp_sf_do_dupcook_a

In the Linux kernel, the following vulnerability has been resolved: sctp: do asoc update earlier in sctpsfdodupcooka There's a panic that occurs in a few of envs, the call trace is as below: general protection fault, ... 0x29acd70f1000a: 0000 1 SMP PTI RIP:...

CVE-2021-46999

In the Linux kernel, the following vulnerability has been resolved: sctp: do asoc update earlier in sctpsfdodupcooka There's a panic that occurs in a few of envs, the call trace is as below: general protection fault, ... 0x29acd70f1000a: 0000 1 SMP PTI RIP:...

CVE-2021-46995 can: mcp251xfd: mcp251xfd_probe(): fix an error pointer dereference in probe

In the Linux kernel, the following vulnerability has been resolved: can: mcp251xfd: mcp251xfdprobe: fix an error pointer dereference in probe When we converted this code to use deverrprobe we accidentally removed a return. It means that if devmclkget it will lead to an Oops when we call clkgetrat...

CVE-2021-46992

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: avoid overflows in nfthashbuckets Number of buckets being stored in 32bit variables, we have to ensure that no overflows occur in nfthashbuckets syzbot injected a size == 0x40000000 and reported: UBSAN:...

CVE-2021-46983 nvmet-rdma: Fix NULL deref when SEND is completed with error

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, a retry counter exceeded error is received. This leads to nvmetrdmaerrorcomp which tried accessing the...

CVE-2021-46983 nvmet-rdma: Fix NULL deref when SEND is completed with error

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, a retry counter exceeded error is received. This leads to nvmetrdmaerrorcomp which tried accessing the...

CVE-2021-46984 kyber: fix out of bounds access when preempted

In the Linux kernel, the following vulnerability has been resolved: kyber: fix out of bounds access when preempted blkmqschedbiomerge gets the ctx and hctx for the current CPU and passes the hctx to -biomerge. kyberbiomerge then gets the ctx for the current CPU again and uses that to get the...

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 during iiodeviceunregister then later on inside iiodeviceunregistereventset and iiobuffersfreesysfsandmask. Double free leads to...

CVE-2020-36784 i2c: cadence: fix reference leak when pm_runtime_get_sync fails

In the Linux kernel, the following vulnerability has been resolved: i2c: cadence: fix reference leak when pmruntimegetsync fails The PM reference count is not expected to be incremented on return in functions cdnsi2cmasterxfer and cdnsregslave. However, pmruntimegetsync will increment pm usage...

CVE-2020-36780

In the Linux kernel, the following vulnerability has been resolved: i2c: sprd: fix reference leak when pmruntimegetsync fails The PM reference count is not expected to be incremented on return in sprdi2cmasterxfer and sprdi2cremove. However, pmruntimegetsync will increment the PM reference count...