| 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-2025-37872: net: txgbe: fix memory leak in txgbe_probe() error path |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: txgbe: fix memory leak in txgbe_probe() error path |
| |
| When txgbe_sw_init() is called, memory is allocated for wx->rss_key |
| in wx_init_rss_key(). However, in txgbe_probe() function, the subsequent |
| error paths after txgbe_sw_init() don't free the rss_key. Fix that by |
| freeing it in error path along with wx->mac_table. |
| |
| Also change the label to which execution jumps when txgbe_sw_init() |
| fails, because otherwise, it could lead to a double free for rss_key, |
| when the mac_table allocation fails in wx_sw_init(). |
| |
| The Linux kernel CVE team has assigned CVE-2025-37872 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.8 with commit 937d46ecc5f941b26270bdf7ce37495f12b25955 and fixed in 6.12.25 with commit 635863d93deb8e352d63a8eba852efeaf1ac3539 |
| Issue introduced in 6.8 with commit 937d46ecc5f941b26270bdf7ce37495f12b25955 and fixed in 6.14.4 with commit 837197a722919f5b0eeb967fe7cb0cc1e83173b9 |
| Issue introduced in 6.8 with commit 937d46ecc5f941b26270bdf7ce37495f12b25955 and fixed in 6.15 with commit b2727326d0a53709380aa147018085d71a6d4843 |
| |
| 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-2025-37872 |
| 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/wangxun/txgbe/txgbe_main.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/635863d93deb8e352d63a8eba852efeaf1ac3539 |
| https://git.kernel.org/stable/c/837197a722919f5b0eeb967fe7cb0cc1e83173b9 |
| https://git.kernel.org/stable/c/b2727326d0a53709380aa147018085d71a6d4843 |
