CVE-2024-49982

HighCVSS 7.8/10Last modified Oct 15, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

aoe: fix the potential use-after-free problem in more places

For fixing CVE-2023-6270, f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") makes tx() calling dev_put() instead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs into use-after-free.

Then Nicolai Stange found more places in aoe have potential use-after-free problem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe() and aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push packet to tx queue. So they should also use dev_hold() to increase the refcnt of skb->dev.

On the other hand, moving dev_put() to tx() causes that the refcnt of skb->dev be reduced to a negative value, because corresponding dev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(), probe(), and aoecmd_cfg_rsp(). This patch fixed this issue.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

VendorProductVersions
LinuxLinux>= ad80c34944d7175fa1f5c7a55066020002921a99, < 12f7b89dd72b25da4eeaa22097877963cad6418e; >= 1a54aa506b3b2f31496731039e49778f54eee881, < a786265aecf39015418e4f930cc1c14603a01490; >= faf0b4c5e00bb680e8e43ac936df24d3f48c8e65, < f63461af2c1a86af4217910e47a5c46e3372e645; >= 7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4, < 07b418d50ccbbca7e5d87a3a0d41d436cefebf79; >= 74ca3ef68d2f449bc848c0a814cefc487bf755fa, < bc2cbf7525ac288e07d465f5a1d8cb8fb9599254; >= eb48680b0255a9e8a9bdc93d6a55b11c31262e62, < acc5103a0a8c200a52af7d732c36a8477436a3d3; >= f98364e926626c678fb4b9004b75cacf92ff0662, < 89d9a69ae0c667e4d9d028028e2dcc837bae626f; >= f98364e926626c678fb4b9004b75cacf92ff0662, < 8253a60c89ec35c8f36fb2cc08cdf854c7a3eb58; >= f98364e926626c678fb4b9004b75cacf92ff0662, < 6d6e54fc71ad1ab0a87047fd9c211e75d86084a3; 079cba4f4e307c69878226fdf5228c20aa1c969c; a16fbb80064634b254520a46395e36b87ca4731e; >= 4.19.311, < 4.19.323; >= 5.4.273, < 5.4.285; >= 5.10.214, < 5.10.227; >= 5.15.153, < 5.15.168; >= 6.1.83, < 6.1.113; >= 6.6.23, < 6.6.55; >= 6.7.11, < 6.8; >= 6.8.2, < 6.9
LinuxLinux6.9
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensSIPLUS S7-1500 CPU 1518-4 PN/DP MFP>= V3.1.0, < V3.1.5
SiemensRUGGEDCOM RST2428P< V3.2
SiemensSCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family< V3.2
SiemensSCALANCE XCM-/XRM-/XCH-/XRH-300 family< V3.2

References

Timeline

Published
Oct 21, 2024
Last modified
Oct 15, 2026
NVD status
Modified

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CVE-2024-49982: High severity, CVSS 7.8 | Vulnix