EUVD-2022-55744

In the Linux kernel, the following vulnerability has been resolved: seccomp: Move copyseccomp to no failure path. Our syzbot instance reported memory leaks in doseccomp 0, similar to the report 1. It shows that we miss freeing struct seccompfilter and some objects included in it. We can reproduce...

EUVD-2022-55746

In the Linux kernel, the following vulnerability has been resolved: hwrng: geode - Fix PCI device refcount leak foreachpcidev is implemented by pcigetdevice. The comment of pcigetdevice says that it will increase the reference count for the returned pcidev and also decrease the reference count fo...

CVE-2022-50659

In the Linux kernel, the following vulnerability has been resolved: hwrng: geode - Fix PCI device refcount leak foreachpcidev is implemented by pcigetdevice. The comment of pcigetdevice says that it will increase the reference count for the returned pcidev and also decrease the reference count fo...

UBUNTU-CVE-2022-50668

In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock due to mbcache entry corruption When manipulating xattr blocks, we can deadlock infinitely looping inside ext4xattrblockset where we constantly keep finding xattr block for reuse in mbcache but we are unable to...

kernel: net/mlx5: fs, fix UAF in flow counter release

A use-after-free flaw was discovered in the Linux kernel’s mlx5 Net/MLX5 subsystem: within the function mlx5cmdhwsdeletefte the HWS action reference count and mutex for a local flow counter were not initialized, meaning the flow-counter structure could already be freed while deleting the rule. Th...

EUVD-2023-60127

In the Linux kernel, the following vulnerability has been resolved: mfd: dln2: Fix memory leak in dln2probe When dln2setuprxurbs in dln2probe fails, error outfree forgets to call usbputdev to decrease the refcount of dln2-usbdev. Fix this by adding usbputdev in the error handling code of dln2prob...

CVE-2023-53836

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

CVE-2023-53836

Summary (CVE-2023-53836): In the Linux kernel, a race condition can occur in bpf/sockmap code affecting skb refcnt after locking changes. The backlog path may still hold a reference to a skb that userspace has already consumed (skb_dequeue) and freed, leading to a potential use-after-free. The fi...

CVE-2022-50668 ext4: fix deadlock due to mbcache entry corruption

In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock due to mbcache entry corruption When manipulating xattr blocks, we can deadlock infinitely looping inside ext4xattrblockset where we constantly keep finding xattr block for reuse in mbcache but we are unable to...

CVE-2022-50659 hwrng: geode - Fix PCI device refcount leak

In the Linux kernel, the following vulnerability has been resolved: hwrng: geode - Fix PCI device refcount leak foreachpcidev is implemented by pcigetdevice. The comment of pcigetdevice says that it will increase the reference count for the returned pcidev and also decrease the reference count fo...

CVE-2022-50659

In the Linux kernel, the following vulnerability has been resolved: hwrng: geode - Fix PCI device refcount leak foreachpcidev is implemented by pcigetdevice. The comment of pcigetdevice says that it will increase the reference count for the returned pcidev and also decrease the reference count fo...

CVE-2023-53781

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

UBUNTU-CVE-2023-53795

In the Linux kernel, the following vulnerability has been resolved: iommufd: IOMMUFDDESTROY should not increase the refcount syzkaller found a race where IOMMUFDDESTROY increments the refcount: obj = iommufdgetobjectucmd-ictx, cmd-id, IOMMUFDOBJANY; if ISERRobj return PTRERRobj;...

SUSE CVE-2022-50615

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in snruncoremmiomap pcigetdevice will increase the reference count for the returned pcidev, so snruncoregetmcdev will return a pcidev with its reference count increased. We need to...

SUSE CVE-2023-53759

In the Linux kernel, the following vulnerability has been resolved: HID: hidraw: fix data race on device refcount The hidrawopen function increments the hidraw device reference counter. The counter has no dedicated synchronization mechanism, resulting in a potential data race when concurrently...

CVE-2023-53795

In the Linux kernel, the following vulnerability has been resolved: iommufd: IOMMUFDDESTROY should not increase the refcount syzkaller found a race where IOMMUFDDESTROY increments the refcount: obj = iommufdgetobjectucmd-ictx, cmd-id, IOMMUFDOBJANY; if ISERRobj return PTRERRobj;...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a reference count leak that could lead to improper resource management...

PT-2025-49690

In the Linux kernel, the following vulnerability has been resolved: hwrng: geode - Fix PCI device refcount leak for each pci dev is implemented by pci get device. The comment of pci get device says that it will increase the reference count for the returned pci dev and also decrease the reference...

Linux Distros Unpatched Vulnerability : CVE-2022-50615

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - perf/x86/intel/uncore: Fix reference count leak in snruncoremmiomap pcigetdevice will increase the reference count for the returned pcidev, so snruncoregetmcdev...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a reference count leak that could lead to improper resource management...