CVE-2024-39503
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type Lion Ackermann reported that there is a race condition between namespace cleanup in ipset and the garbage collection of the list:set type. The namespace cleanup can destroy the list:set type of sets while the gc of the set type is waiting to run in rcu cleanup. The latter uses data from the destroyed set which thus leads use after free. The patch contains the following parts: - When destroying all sets, first remove the garbage collectors, then wait if needed and then destroy the sets. - Fix the badly ordered "wait then remove gc" for the destroy a single set case. - Fix the missing rcu locking in the list:set type in the userspace test case. - Use proper RCU list handlings in the list:set type. The patch depends on c1193d9bbbd3 (netfilter: ipset: Add list flush to cancel_gc).
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 3 releases
| Version | Status | Fixed in |
|---|---|---|
| 6.8 | Affected | — |
| 6.10 | Affected | — |
| — | Affected | 5.4.279 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.9.7-1 |
| sid | Fixed | 6.9.7-1 |
| forky | Fixed | 6.9.7-1 |
| bullseye | Fixed | 5.10.221-1 |
| bookworm | Fixed | 6.1.99-1 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | — |
References
- https://access.redhat.com/errata/RHSA-2024:9315
- https://git.kernel.org/stable/c/0f1bb77c6d837c9513943bc7c08f04c5cc5c6568
- https://git.kernel.org/stable/c/2ba35b37f780c6410bb4bba9c3072596d8576702
- https://git.kernel.org/stable/c/390b353d1a1da3e9c6c0fd14fe650d69063c95d6
- https://git.kernel.org/stable/c/4e7aaa6b82d63e8ddcbfb56b4fd3d014ca586f10
- https://git.kernel.org/stable/c/90ae20d47de602198eb69e6cd7a3db3420abfc08
- https://git.kernel.org/stable/c/93b53c202b51a69e42ca57f5a183f7e008e19f83
- https://git.kernel.org/stable/c/c0761d1f1ce1d5b85b5e82bbb714df12de1aa8c3
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
- https://errata.rockylinux.org/RLSA-2024:8870
- https://errata.rockylinux.org/RLSA-2024:8856
- https://www.suse.com/security/cve/CVE-2024-39503.html
- https://security-tracker.debian.org/tracker/CVE-2024-39503
- https://access.redhat.com/errata/RHSA-2024:8856
- https://bugzilla.redhat.com/2266247
- https://bugzilla.redhat.com/2269183
- https://bugzilla.redhat.com/2275750
- https://bugzilla.redhat.com/2277168
- https://bugzilla.redhat.com/2278262
- https://bugzilla.redhat.com/2278350
- https://bugzilla.redhat.com/2278387
- https://bugzilla.redhat.com/2281284
CWEs
CWE-362 CWE-416
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.