CVE-2024-40958

In the Linux kernel, the following vulnerability has been resolved: netns: Make getnetns handle zero refcount net Syzkaller hit a warning: refcountt: addition on 0; use-after-free. WARNING: CPU: 3 PID: 7890 at lib/refcount.c:25 refcountwarnsaturate+0xdf/0x1d0 Modules linked in: CPU: 3 PID: 7890...

CVE-2021-47302

In the Linux kernel, the following vulnerability has been resolved: igc: Fix use-after-free error during reset Cleans the next descriptor to watch nexttowatch when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igcpoll runs while the controller is being reset this ca...

CVE-2021-47249

CVE-2021-47249 concerns a memory-leak in the Linux kernel’s net: rds path, fixed by correcting refcount handling in rds_recvmsg. The issue occurred when an error happened in rds_cmsg_recv(): after a successful rds_next_incoming(rs, &inc) the code would increment inc’s refcount, but on failure to ...

CVE-2021-47249

In the Linux kernel, the following vulnerability has been resolved: net: rds: fix memory leak in rdsrecvmsg Syzbot reported memory leak in rds. The problem was in unputted refcount in case of error. int rdsrecvmsgstruct socket sock, struct msghdr msg, sizet size, int msgflags ... if...

CVE-2024-35969 ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix race condition between ipv6getifaddr and ipv6deladdr Although ipv6getifaddr walks inet6addrlst under the RCU lock, it still means hlistforeachentryrcu can return an item that got removed from the list. The memory itself...

CVE-2024-35932 drm/vc4: don't check if plane->state->fb == state->fb

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: don't check if plane-state-fb == state-fb Currently, when using non-blocking commits, we can see the following kernel warning: 110.908514 ------------ cut here ------------ 110.908529 refcountt: underflow; use-after-free...

kernel: xfrm_expand_policies() in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice

A flaw was found in the Linux kernel’s IP framework for transforming packets XFRM subsystem. An error while resolving policies in xfrmbundlelookup causes the refcount to drop twice, leading to a possible crash and a denial of service...

UBUNTU-CVE-2023-6270

A flaw was found in the ATA over Ethernet AoE driver in the Linux kernel. The aoecmdcfgpkts function improperly updates the refcnt on struct netdevice, and a use-after-free can be triggered by racing between the free on the struct and the access through the skbtxq global queue. This could lead to...

kernel: xfrm_expand_policies() in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice

A flaw was found in the Linux kernel’s IP framework for transforming packets XFRM subsystem. An error while resolving policies in xfrmbundlelookup causes the refcount to drop twice, leading to a possible crash and a denial of service...

kernel: scsi: mpt3sas: Fix use-after-free warning

A user after-free vulnerability was found in the Linux kernel in the refcountt variable when performing the controller reset. This issue could lead to denial of service of the system...

USN-5913-1 linux-oem-5.14, linux-oem-5.17 vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

GSD-2023-1000761 mtd: core: Fix refcount error in del_mtd_device()

mtd: core: Fix refcount error in delmtddevice This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.16 by commit...

PT-2023-33838 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.16 Description: A refcount error was found in the del mtd device function. The actual impact and attack plausibility have not yet been proven. This issue was introduced in version v5.17 and is fixed in Linu...

Linux kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. Linux kernel version 5.18.14 and earlier versions have a security vulnerability that stems from xfrmexpandpolicies in net/xfrm/xfrmpolicy.c that causes refcount to be deleted twice. No detailed...

kernel: use-after-free in fs/block_dev.c

A use-after-free flaw was observed in blkdevget, in fs/blockdev.c after a call to blkdevget fails, and its refcount gets freed/released. This problem may cause a denial of service problem with a special user privilege, and may even lead to a confidentiality issue...

PT-2024-11256 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A memory leak has been resolved in the Linux kernel, specifically in the rds recvmsg function. The issue was caused by an unputted refcount in case of error. When rds cmsg recv fails,...

GHSA-QFC5-MCWQ-26Q8 Double Free in psutil

psutil aka python-psutil through 5.6.5 can have a double free. This occurs because of refcount mishandling within a while or for loop that converts system data into a Python object...

improper x86 shadow mode refcount error handling

ISSUE DESCRIPTION Pages being used to run x86 guests in shadow mode are reference counted to track their uses. When another reference cannot be acquired, the corresponding page table entry must not be inserted. Due to incorrect error handling, this constraint could be violated. IMPACT A malicious...