CVE-2024-26898
Description
In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts This patch is against CVE-2023-6270. The description of cve is: A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution. In aoecmd_cfg_pkts(), it always calls dev_put(ifp) when skb initial code is finished. But the net_device ifp will still be used in later tx()->dev_queue_xmit() in kthread. Which means that the dev_put(ifp) should NOT be called in the success path of skb initial code in aoecmd_cfg_pkts(). Otherwise tx() may run into use-after-free because the net_device is freed. This patch removed the dev_put(ifp) in the success path in aoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx().
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 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 4.19.311 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.7.12-1 |
| sid | Fixed | 6.7.12-1 |
| forky | Fixed | 6.7.12-1 |
| bullseye | Fixed | 5.10.216-1 |
| bookworm | Fixed | 6.1.85-1 |
References
- https://git.kernel.org/stable/c/079cba4f4e307c69878226fdf5228c20aa1c969c
- https://git.kernel.org/stable/c/1a54aa506b3b2f31496731039e49778f54eee881
- https://git.kernel.org/stable/c/74ca3ef68d2f449bc848c0a814cefc487bf755fa
- https://git.kernel.org/stable/c/7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4
- https://git.kernel.org/stable/c/a16fbb80064634b254520a46395e36b87ca4731e
- https://git.kernel.org/stable/c/ad80c34944d7175fa1f5c7a55066020002921a99
- https://git.kernel.org/stable/c/eb48680b0255a9e8a9bdc93d6a55b11c31262e62
- https://git.kernel.org/stable/c/f98364e926626c678fb4b9004b75cacf92ff0662
- https://git.kernel.org/stable/c/faf0b4c5e00bb680e8e43ac936df24d3f48c8e65
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://www.suse.com/security/cve/CVE-2024-26898.html
- https://security-tracker.debian.org/tracker/CVE-2024-26898
CWEs
CWE-416
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.