| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-22050: usbnet:fix NPE during rx_complete |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| usbnet:fix NPE during rx_complete |
| |
| Missing usbnet_going_away Check in Critical Path. |
| The usb_submit_urb function lacks a usbnet_going_away |
| validation, whereas __usbnet_queue_skb includes this check. |
| |
| This inconsistency creates a race condition where: |
| A URB request may succeed, but the corresponding SKB data |
| fails to be queued. |
| |
| Subsequent processes: |
| (e.g., rx_complete → defer_bh → __skb_unlink(skb, list)) |
| attempt to access skb->next, triggering a NULL pointer |
| dereference (Kernel Panic). |
| |
| The Linux kernel CVE team has assigned CVE-2025-22050 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15.168 with commit b80aacfea6e8d6ed6e430aa13922d6ccf044415a and fixed in 5.15.180 with commit 95789c2f94fd29dce8759f9766baa333f749287c |
| Issue introduced in 6.1.113 with commit 869caa8de8cb94514df704ccbe0b024fda4b9398 and fixed in 6.1.134 with commit 0f10f83acfd619e13c64d6705908dfd792f19544 |
| Issue introduced in 6.6.54 with commit 1e44ee6cdd123d6cfe78b4a94e1572e23bbb58ce and fixed in 6.6.87 with commit acacd48a37b52fc95f621765762c04152b58d642 |
| Issue introduced in 6.12 with commit 04e906839a053f092ef53f4fb2d610983412b904 and fixed in 6.12.23 with commit d689645cd1594ea1d13cb0c404f8ad1011353e0e |
| Issue introduced in 6.12 with commit 04e906839a053f092ef53f4fb2d610983412b904 and fixed in 6.13.11 with commit 0c30988588b28393e3e8873d5654f910e86391ba |
| Issue introduced in 6.12 with commit 04e906839a053f092ef53f4fb2d610983412b904 and fixed in 6.14.2 with commit fd9ee3f0d6a53844f65efde581c91bbb0ff749ac |
| Issue introduced in 6.12 with commit 04e906839a053f092ef53f4fb2d610983412b904 and fixed in 6.15 with commit 51de3600093429e3b712e5f091d767babc5dd6df |
| Issue introduced in 6.10.13 with commit ca124236cd14e61610f56df9a8f81376a1ffe660 |
| Issue introduced in 6.11.2 with commit 54671d731f4977fb3c0c26f2840655b5204e4437 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2025-22050 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/net/usb/usbnet.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/95789c2f94fd29dce8759f9766baa333f749287c |
| https://git.kernel.org/stable/c/0f10f83acfd619e13c64d6705908dfd792f19544 |
| https://git.kernel.org/stable/c/acacd48a37b52fc95f621765762c04152b58d642 |
| https://git.kernel.org/stable/c/d689645cd1594ea1d13cb0c404f8ad1011353e0e |
| https://git.kernel.org/stable/c/0c30988588b28393e3e8873d5654f910e86391ba |
| https://git.kernel.org/stable/c/fd9ee3f0d6a53844f65efde581c91bbb0ff749ac |
| https://git.kernel.org/stable/c/51de3600093429e3b712e5f091d767babc5dd6df |
