7.8

CVE-2024-26898

aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts

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().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.22 < 4.19.311
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.273
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.214
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.153
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.83
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.23
Linux ≫ Linux Kernel Version >= 6.7 < 6.7.11
Linux ≫ Linux Kernel Version >= 6.8 < 6.8.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.31% 0.219
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
https://git.kernel.org/stable/c/079cba4f4e307c69878226fdf5228c20aa1c969c
Patch
https://git.kernel.org/stable/c/1a54aa506b3b2f31496731039e49778f54eee881
Patch
https://git.kernel.org/stable/c/74ca3ef68d2f449bc848c0a814cefc487bf755fa
Patch
https://git.kernel.org/stable/c/7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4
Patch
https://git.kernel.org/stable/c/a16fbb80064634b254520a46395e36b87ca4731e
Patch
https://git.kernel.org/stable/c/ad80c34944d7175fa1f5c7a55066020002921a99
Patch
https://git.kernel.org/stable/c/eb48680b0255a9e8a9bdc93d6a55b11c31262e62
Patch
https://git.kernel.org/stable/c/f98364e926626c678fb4b9004b75cacf92ff0662
Patch
https://git.kernel.org/stable/c/faf0b4c5e00bb680e8e43ac936df24d3f48c8e65
Patch
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html