CVE-2026-74548
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
forcedeth: fix UAF of txrx_stats in nv_remove
nv_remove() frees the per-CPU txrx_stats before unregister_netdev(). Until unregister completes, ndo_get_stats64, the NAPI/xmit data path, and nv_close()/drain may still access txrx_stats, leading to a use-after-free.
Free the stats only after unregister_netdev().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < cdf864d5d3c813ae1876f2bacc1cf3ac3c66dfc9 | affected |
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < 7c22b4ee0bd003cecfc14ca28981cb213e201f70 | affected |
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < d51ce7a63b76eda02cabfed1b0cc277b2f5c9bcc | affected |
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < cf2dcde2284562ff87830ca0b7fa2b06e95aef1e | affected |
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < c9d24a205fd508b9999fcab6aca4c590490a12cf | affected |
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < ae20a8a4de06a289d40b0a0633d8d573f1fcb049 | affected |
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < 201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1 | affected |
| Linux | Linux | f4b633b911fd3b4cbe1dc065e8fb064078d0889d < 22666ba1420164753d7b0f5a841986b25ace5435 | affected |
| Linux | Linux | 5.3 | affected |
| Linux | Linux | 0 < 5.3 | unaffected |
| Linux | Linux | 5.10.265 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.216 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.183 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.151 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.103 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.44 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.8 <= 7.1.* | unaffected |
| Linux | Linux | 7.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/cdf864d5d3c813ae1876f2bacc1cf3ac3c66dfc9
- https://git.kernel.org/stable/c/7c22b4ee0bd003cecfc14ca28981cb213e201f70
- https://git.kernel.org/stable/c/d51ce7a63b76eda02cabfed1b0cc277b2f5c9bcc
- https://git.kernel.org/stable/c/cf2dcde2284562ff87830ca0b7fa2b06e95aef1e
- https://git.kernel.org/stable/c/c9d24a205fd508b9999fcab6aca4c590490a12cf
- https://git.kernel.org/stable/c/ae20a8a4de06a289d40b0a0633d8d573f1fcb049
- https://git.kernel.org/stable/c/201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1
- https://git.kernel.org/stable/c/22666ba1420164753d7b0f5a841986b25ace5435
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