| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-21715: net: davicom: fix UAF in dm9000_drv_remove |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: davicom: fix UAF in dm9000_drv_remove |
| |
| dm is netdev private data and it cannot be |
| used after free_netdev() call. Using dm after free_netdev() |
| can cause UAF bug. Fix it by moving free_netdev() at the end of the |
| function. |
| |
| This is similar to the issue fixed in commit |
| ad297cd2db89 ("net: qcom/emac: fix UAF in emac_remove"). |
| |
| This bug is detected by our static analysis tool. |
| |
| The Linux kernel CVE team has assigned CVE-2025-21715 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.4.106 with commit d28e783c20033b90a64d4e1307bafb56085d8184 and fixed in 5.4.291 with commit db79e982c5f9e39ab710cbce55b05f2f5e6f1ca9 |
| Issue introduced in 5.10.24 with commit 4fd0654b8f2129b68203974ddee15f804ec011c2 and fixed in 5.10.235 with commit a53cb72043443ac787ec0b5fa17bb3f8ff3d462b |
| Issue introduced in 5.12 with commit cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b and fixed in 5.15.179 with commit 7d7d201eb3b766abe590ac0dda7a508b7db3e357 |
| Issue introduced in 5.12 with commit cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b and fixed in 6.1.129 with commit c94ab07edc2843e2f3d46dbd82e5c681503aaadf |
| Issue introduced in 5.12 with commit cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b and fixed in 6.6.76 with commit c411f9a5fdc9158e8f7c57eac961d3df3eb4d8ca |
| Issue introduced in 5.12 with commit cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b and fixed in 6.12.13 with commit 5a54367a7c2378c65aaa4d3cfd952f26adef7aa7 |
| Issue introduced in 5.12 with commit cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b and fixed in 6.13.2 with commit 2013c95df6752d9c88221d0f0f37b6f197969390 |
| Issue introduced in 5.12 with commit cf9e60aa69ae6c40d3e3e4c94dd6c8de31674e9b and fixed in 6.14 with commit 19e65c45a1507a1a2926649d2db3583ed9d55fd9 |
| Issue introduced in 4.4.262 with commit d182994b2b6e23778b146a230efac8f1d77a3445 |
| Issue introduced in 4.9.262 with commit 427b3fc3d5244fef9c1f910a9c699f2690642f83 |
| Issue introduced in 4.14.226 with commit 9c49181c201d434186ca6b1a7b52e29f4169f6f8 |
| Issue introduced in 4.19.181 with commit 9808f032c4d971cbf2b01411a0a2a8ee0040efe3 |
| Issue introduced in 5.11.7 with commit a1f308089257616cdb91b4334c5eaa81ae17e387 |
| |
| 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-2025-21715 |
| 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/ethernet/davicom/dm9000.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/db79e982c5f9e39ab710cbce55b05f2f5e6f1ca9 |
| https://git.kernel.org/stable/c/a53cb72043443ac787ec0b5fa17bb3f8ff3d462b |
| https://git.kernel.org/stable/c/7d7d201eb3b766abe590ac0dda7a508b7db3e357 |
| https://git.kernel.org/stable/c/c94ab07edc2843e2f3d46dbd82e5c681503aaadf |
| https://git.kernel.org/stable/c/c411f9a5fdc9158e8f7c57eac961d3df3eb4d8ca |
| https://git.kernel.org/stable/c/5a54367a7c2378c65aaa4d3cfd952f26adef7aa7 |
| https://git.kernel.org/stable/c/2013c95df6752d9c88221d0f0f37b6f197969390 |
| https://git.kernel.org/stable/c/19e65c45a1507a1a2926649d2db3583ed9d55fd9 |
