CVE-2026-74715 Affecting dlm-kmp-default package, versions <6.12.0-160000.40.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-SLES1600-DLMKMPDEFAULT-21881846
- published30 Oct 2026
- disclosed24 Oct 2026
Introduced: 24 Oct 2026
NewCVE-2026-74715 (opens in a new tab)How to fix?
Upgrade SLES:16.0.0 dlm-kmp-default to version 6.12.0-160000.40.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dlm-kmp-default package and not the dlm-kmp-default package as distributed by SLES.
See How to fix? for SLES:16.0.0 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix netns reference imbalance in conntrack kfuncs
The opts argument of the BPF conntrack kfuncs can point to a shared map value. __bpf_nf_ct_lookup() and __bpf_nf_ct_alloc_entry() read opts->netns_id separately when acquiring and releasing the network namespace reference.
The reference imbalance can occur as follows:
CPU 0 CPU 1 read opts->netns_id (-1) skip get_net_ns_by_id() write opts->netns_id (id) read opts->netns_id (id) put_net(net) /* no matching get */
The reverse transition leaks the reference. Repeating the unmatched put can destroy a live namespace and crash later users.
The kernel reported:
Oops: general protection fault, probably for non-canonical address KASAN: null-ptr-deref in range [0x00000000000000e8-0x00000000000000ef] RIP: 0010:bpf_prog_test_run_xdp+0x52c/0x1700 Call Trace: __sys_bpf+0x1662/0x50c0 __x64_sys_bpf+0x73/0xb0 do_syscall_64+0xf9/0x540 entry_SYSCALL_64_after_hwframe+0x77/0x7f Kernel panic - not syncing: Fatal exception
Snapshot every input field of opts with READ_ONCE() before validating or using it. The netns_id snapshot keeps the namespace get/put pair balanced, while the other snapshots keep the remaining options from changing partway through an invocation. The individual reads can still observe an inconsistent combination during a concurrent update, but each selected field value remains stable for that invocation.
References
- https://www.suse.com/security/cve/CVE-2026-74715.html
- https://bugzilla.suse.com/1277890
- https://git.kernel.org/stable/c/e5e060eb63d10b41ab60fd955649479d99b38210
- https://git.kernel.org/stable/c/fdeba03fea78407a8c52faa99177c9f7f29f90eb
- https://git.kernel.org/stable/c/4af94462c0ca2187a02a1a6641020ae888c74d5c
- https://git.kernel.org/stable/c/41731d4290400cb898f15f049ae4018d45415e69
- https://git.kernel.org/stable/c/fb22bedf0c4f4f05bfa6e4a7ec0fd97bbdff9ce8
- https://git.kernel.org/stable/c/cfde990193135a35637e55f69e83e4ab441e60ab