CVE-2021-47457

CVE-2021-47457 affects the Linux kernel’s CAN ISOTP path: isotp_sendmsg() failed to check the return value of wait_event_interruptible(), allowing a TX buffer to be accessed by multiple processes and causing interference. The fixes add a result check in isotp_sendmsg() to prevent multiple TX-acce...

CVE-2021-47457

In the Linux kernel, the following vulnerability has been resolved: can: isotp: isotpsendmsg: add result check for waiteventinterruptible Using waiteventinterruptible to wait for complete transmission, but do not check the result of waiteventinterruptible which can be interrupted. It will result ...

CVE-2021-47458

In the Linux kernel, the following vulnerability has been resolved: ocfs2: mount fails with buffer overflow in strlen Starting with kernel 5.11 built with CONFIGFORTIFYSOURCE mouting an ocfs2 filesystem with either o2cb or pcmk cluster stack fails with the trace below. Problem seems to be that...

CVE-2021-47456

In the Linux kernel, the following vulnerability has been resolved: can: peakpci: peakpciremove: fix UAF When remove the module peekpci, referencing 'chan' again after releasing 'dev' will cause UAF. Fix this by releasing 'dev' later. The following log reveals it: 35.961814 BUG: KASAN:...

CVE-2021-47454

In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: do not decrement idle task preempt count in CPU offline With PREEMPTCOUNT=y, when a CPU is offlined and then onlined again, we get: BUG: scheduling while atomic: swapper/1/0/0x00000000 no locks held by swapper/1/0...

CVE-2021-47455

In the Linux kernel, the following vulnerability has been resolved: ptp: Fix possible memory leak in ptpclockregister I got memory leak as follows when doing fault injection test: unreferenced object 0xffff88800906c618 size 8: comm "i2c-idt82p33931", pid 4421, jiffies 4294948083 age 13.188s hex...

CVE-2021-47451

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtIDLETIMER: fix panic that occurs when timertype has garbage value Currently, when the rule related to IDLETIMER is added, idletimertg timer structure is initialized by kmalloc on executing idletimertgcreate function...

CVE-2021-47450 KVM: arm64: Fix host stage-2 PGD refcount

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

CVE-2021-47450

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fix host stage-2 PGD refcount The KVM page-table library refcounts the pages of concatenated stage-2 PGDs individually. However, when running KVM in protected mode, the host's stage-2 PGD is currently managed by EL2 a...

CVE-2021-47449

In the Linux kernel, the following vulnerability has been resolved: ice: fix locking for Tx timestamp tracking flush Commit 4dd0d5c33c3e "ice: add lock around Tx timestamp tracker flush" added a lock around the Tx timestamp tracker flow which is used to cleanup any left over SKBs and prepare for...

CVE-2021-47446 drm/msm/a4xx: fix error handling in a4xx_gpu_init()

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a4xx: fix error handling in a4xxgpuinit This code returns 1 on error instead of a negative error. It leads to an Oops in the caller. A second problem is that the check for "if ret != -ENODATA" cannot be true because "ret"...

CVE-2021-47445 drm/msm: Fix null pointer dereference on pointer edp

In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix null pointer dereference on pointer edp The initialization of pointer dev dereferences pointer edp before edp is null checked, so there is a potential null pointer deference issue. Fix this by only dereferencing edp...

CVE-2021-47446 drm/msm/a4xx: fix error handling in a4xx_gpu_init()

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a4xx: fix error handling in a4xxgpuinit This code returns 1 on error instead of a negative error. It leads to an Oops in the caller. A second problem is that the check for "if ret != -ENODATA" cannot be true because "ret"...

CVE-2021-47446

In the Linux kernel, the following vulnerability has been resolved: drm/msm/a4xx: fix error handling in a4xxgpuinit This code returns 1 on error instead of a negative error. It leads to an Oops in the caller. A second problem is that the check for "if ret != -ENODATA" cannot be true because "ret"...

CVE-2021-47444 drm/edid: In connector_bad_edid() cap num_of_ext by num_blocks read

In the Linux kernel, the following vulnerability has been resolved: drm/edid: In connectorbadedid cap numofext by numblocks read In commit e11f5bd8228f "drm: Add support for DP 1.4 Compliance edid corruption test" the function connectorbadedid started assuming that the memory for the EDID passed ...

CVE-2021-47444 drm/edid: In connector_bad_edid() cap num_of_ext by num_blocks read

In the Linux kernel, the following vulnerability has been resolved: drm/edid: In connectorbadedid cap numofext by numblocks read In commit e11f5bd8228f "drm: Add support for DP 1.4 Compliance edid corruption test" the function connectorbadedid started assuming that the memory for the EDID passed ...

CVE-2021-47442

In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digitalinsendsddreq 'skb' is allocated in digitalinsendsddreq, but not free when digitalinsendcmd failed, which will cause memory leak. Fix it by freeing 'skb' if digitalinsendcmd return...

CVE-2021-47443

In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digitaltglistenmdaa 'params' is allocated in digitaltglistenmdaa, but not free when digitalsendcmd failed, which will cause memory leak. Fix it by freeing 'params' if digitalsendcmd retur...

CVE-2021-47441

In the Linux kernel, the following vulnerability has been resolved: mlxsw: thermal: Fix out-of-bounds memory accesses Currently, mlxsw allows cooling states to be set above the maximum cooling state supported by the driver: cat /sys/class/thermal/thermalzone2/cdev0/type mlxswfan cat...

CVE-2021-47438

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix memory leak in mlx5coredestroycq error path Prior to this patch in case mlx5coredestroycq failed it returns without completing all destroy operations and that leads to memory leak. Instead, complete the destroy flo...