SUSE CVE-2024-26958

In the Linux kernel, the following vulnerability has been resolved: nfs: fix UAF in direct writes In production we have been hitting the following warning consistently ------------ cut here ------------ refcountt: underflow; use-after-free. WARNING: CPU: 17 PID: 1800359 at lib/refcount.c:28...

PT-2024-3364

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to a use-after-free vulnerability in the direct writes functionality of the Network File System NFS in the Linux kernel. This occurs when the nfs direct request is...

DEBIAN-CVE-2021-47078

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Clear all QP fields if creation failed rxeqpdocleanup relies on valid pointer values in QP for the properly created ones, but in case rxeqpfrominit failed it was filled with garbage and caused tot the following error...

UBUNTU-CVE-2021-47078

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Clear all QP fields if creation failed rxeqpdocleanup relies on valid pointer values in QP for the properly created ones, but in case rxeqpfrominit failed it was filled with garbage and caused tot the following error...

DEBIAN-CVE-2021-46933

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Clear ffseventfd in ffsdataclear. ffsdataclear is indirectly called from both ffsfskillsb and ffsep0release, so it ends up being called twice when userland closes ep0 and then unmounts ffs. If userland provided ...

UBUNTU-CVE-2021-46933

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Clear ffseventfd in ffsdataclear. ffsdataclear is indirectly called from both ffsfskillsb and ffsep0release, so it ends up being called twice when userland closes ep0 and then unmounts ffs. If userland provided ...

CVE-2021-46933: Use After Free

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Clear ffseventfd in ffsdataclear. ffsdataclear is indirectly called from both ffsfskillsb and ffsep0release, so it ends up being called twice when userland closes ep0 and then unmounts ffs. If userland provided ...

PT-2024-8251

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the netfilter component, specifically the nft flow offload function, where the dst is transferred to the flow object, and the route object does not own it...

PT-2025-43099

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to reference counting within the xsk socket kernel subsystem. Specifically, a refcount underflow can occur in the error path of the xp alloc tx...

PT-2025-37553

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A potential reference count underflow issue exists for idev within the IPv6 address configuration component of the Linux kernel. The issue occurs due to a timing gap during modification ...

kernel: dmaengine: Fix double increment of client_count in dma_chan_get()

In the Linux kernel, the following vulnerability has been resolved: dmaengine: Fix double increment of clientcount in dmachanget The first time dmachanget is called for a channel the channel clientcount is incorrectly incremented twice for public channels, first in balancerefcount, and again prio...

SUSE CVE-2019-15791

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfsbtrfsioctlfdreplace installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, whi...

SUSE CVE-2020-25221

getgatepage in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting caused by gate page mishandling of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit...

PT-2021-8082

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.15.3-1 Description The vulnerability is related to a refcount underflow in the ffs data clear function of the usb f fs module. When userland closes ep0 and then unmounts f fs, ffs data clear is indirectly calle...

PT-2021-27003

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.6 Description The issue concerns a potential security vulnerability related to BPF prog refcount underflow. The actual impact and attack plausibility have not yet been proven. It was introduced in version...

PT-2021-26942

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.83 Description The issue is related to a potential refcount underflow in bpf prog. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel versions prior to...

CVE-2020-25221

A flaw was found in the getgatepage in mm/gup.c in the Linux kernel, where it allows privilege escalation due to incorrect reference counting caused by gate page mishandling of the struct page that backs the vsyscall page. The result is a refcount underflow. This flaw is triggered by any 64-bit...

CVE-2020-25221

getgatepage in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting caused by gate page mishandling of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit...

UBUNTU-CVE-2020-25221

getgatepage in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting caused by gate page mishandling of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit...

CVE-2020-25221

getgatepage in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting caused by gate page mishandling of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit...