CVE-2026-10653

The Zephyr netbuf library lib/netbuf/buf.c manipulated both of its reference counts -- the per-header buf-ref and the per-data-block refcount at the start of each variable/heap data allocation -- with plain non-atomic C operators buf-ref++, if --buf-ref 0, if --refcount. The API is documented as...

Linux Distros Unpatched Vulnerability : CVE-2026-52947

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: qrtr: fix refcount saturation and potential UAF in qrtrportremove In qrtrportremove, the socket reference count is decremented via sockput before the port ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fixed the race condition involving skb after locking changes. There is a race condition where the skb from the skpsockbacklog can be referenced after the user-space side has already consumed the skbuff using...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ceph: The “use after free” error was detected by KASAN at the line cephbuffergetarg-xattrbuf;. This means that the reference count could not be incremented before the memory was freed. In the same file, in the handlecapgrant...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: nvme: fix memory allocation in nvmeprreadkeys CVE-2026-23244 In the Linux kernel, the following vulnerability has been resolved: net/sched: actgate: snapshot parameters with RCU on replace CVE-2026-23245 In the...

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 Distros Unpatched Vulnerability : CVE-2023-53795

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - iommufd: IOMMUFDDESTROY should not increase the refcount syzkaller found a race where IOMMUFDDESTROY increments the refcount: obj = iommufdgetobjectucmd-ictx,...

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...

EUVD-2023-60111

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;...

DEBIAN-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;...

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;...

CVE-2023-53795

CVE-2023-53795 affects the Linux kernel IOMMUFD path. The issue is a race where IOMMUFD_DESTROY could incorrectly increment a refcount, breaking the expected protection of temporary refcount elevations. A fix changes synchronization to stop refcount increments on the DESTROY path and uses the xa_...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a race condition related to block group refcounts in btrfscreatependingblockgroups. The creation of block groups occurs in two phases, resulting in a somewhat unintuitive behavior: A block group can be...

btrfs: fix block group refcount race in btrfs_create_pending_block_groups()

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SUSE-SU-2025:20543-1 Security update for kernel-livepatch-MICRO-6-0_Update_6

This update for kernel-livepatch-MICRO-6-0Update6 fixes the following issues: - CVE-2025-22115: btrfs: fix block group refcount race in btrfscreatependingblockgroups bsc1241579...

SUSE-SU-2025:20542-1 Security update for kernel-livepatch-MICRO-6-0_Update_5

This update for kernel-livepatch-MICRO-6-0Update5 fixes the following issues: - CVE-2025-21772: partitions: mac: fix handling of bogus partition table bsc1238912 - CVE-2025-22115: btrfs: fix block group refcount race in btrfscreatependingblockgroups bsc1241579...

Security update for kernel-livepatch-MICRO-6-0_Update_5

This update for kernel-livepatch-MICRO-6-0Update5 fixes the following issues: CVE-2025-21772: partitions: mac: fix handling of bogus partition table bsc1238912 CVE-2025-22115: btrfs: fix block group refcount race in btrfscreatependingblockgroups bsc1241579 Patch Instructions: To install this SUSE...

Security update for kernel-livepatch-MICRO-6-0_Update_2

This update for kernel-livepatch-MICRO-6-0Update2 fixes the following issues: CVE-2024-50208: RDMA/bnxtre: Fix a bug while setting up Level-2 PBL pages bsc1233118 CVE-2024-50250: fsdax: daxunshareiter needs to copy entire blocks bsc1233227 CVE-2024-53146: NFSD: prevent a potential integer overflo...

SUSE-SU-2025:20546-1 Security update for kernel-livepatch-MICRO-6-0-RT_Update_5

This update for kernel-livepatch-MICRO-6-0-RTUpdate5 fixes the following issues: - CVE-2025-21772: partitions: mac: fix handling of bogus partition table bsc1238912 - CVE-2025-22115: btrfs: fix block group refcount race in btrfscreatependingblockgroups bsc1241579...

Security update for kernel-livepatch-MICRO-6-0-RT_Update_3

This update for kernel-livepatch-MICRO-6-0-RTUpdate3 fixes the following issues: CVE-2024-50208: RDMA/bnxtre: Fix a bug while setting up Level-2 PBL pages bsc1233118 CVE-2024-50250: fsdax: daxunshareiter needs to copy entire blocks bsc1233227 CVE-2024-53146: NFSD: prevent a potential integer...