Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf, sockmap: Fixed a race condition related to the refcnt of skb after locking operations. There is a race condition where the skb from the skpsockbacklog can be referenced after the user-space environment has already consume...

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 caught 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...

EUVD-2026-66578

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

SUSE CVE-2026-74748

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

AZL-97733 CVE-2026-74748 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

CVE-2026-74748

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

UBUNTU-CVE-2026-74748

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

CVE-2026-74748

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

CVE-2026-74748 netfilter: ipset: fix refcount race between list:set GC and swap

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

CVE-2026-74748

CVE-2026-74748 is a refcount race in the Linux kernel's netfilter ipset subsystem. The function __ip_set_put_byindex() resolves a set index under RCU but decrements the reference count only after acquiring ip_set_ref_lock. A concurrent ip_set_swap() call can interleave between these two steps, ca...

CVE-2026-74748 netfilter: ipset: fix refcount race between list:set GC and swap

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

CVE-2026-74748: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetput to decrement set-ref. ipsetswap holds that same lock while swappin...

PT-2026-82128

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the netfilter ipset component between the list:set garbage collection GC and the swap operation. The function ip set put byindex resolves an index to a set...

Linux Distros Unpatched Vulnerability : CVE-2026-74748

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfilter: ipset: fix refcount race between list:set GC and swap ipsetputbyindex resolved the index to a set pointer under RCU, then took ipsetreflock in ipsetp...

AZL-97064 CVE-2026-74714 affecting package kernel for versions less than 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: Fix use-after-free in bpfitertcpestablishedbatch reqskqueuehashreq publishes a TCPNEWSYNRECV requestsock onto the ehash chain, drops the bucket lock, and only afterwards sets rskrefcnt to 3. Lockless readers such as...

CVE-2026-74714

A use-after-free vulnerability in the Linux kernel BPF TCP iterator, specifically in bpf_iter_tcp_established_batch(). The root cause is a race condition: sock_hold() increments the reference count of a request_sock whose rsk_refcnt is still zero at publish time, and the subsequent refcount_set(3...

CVE-2026-74714 bpf: tcp: Fix use-after-free in bpf_iter_tcp_established_batch()

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: Fix use-after-free in bpfitertcpestablishedbatch reqskqueuehashreq publishes a TCPNEWSYNRECV requestsock onto the ehash chain, drops the bucket lock, and only afterwards sets rskrefcnt to 3. Lockless readers such as...

CVE-2026-74714 bpf: tcp: Fix use-after-free in bpf_iter_tcp_established_batch()

In the Linux kernel, the following vulnerability has been resolved: bpf: tcp: Fix use-after-free in bpfitertcpestablishedbatch reqskqueuehashreq publishes a TCPNEWSYNRECV requestsock onto the ehash chain, drops the bucket lock, and only afterwards sets rskrefcnt to 3. Lockless readers such as...

PT-2026-79719

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Linux kernel within the bpf iter tcp established batch function. The problem occurs because the function uses sock hold while holding a bucket lock,...

Linux Distros Unpatched Vulnerability : CVE-2026-74714

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: tcp: Fix use-after-free in bpfitertcpestablishedbatch reqskqueuehashreq publishes a TCPNEWSYNRECV requestsock onto the ehash chain, drops the bucket lock,...