| 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-2025-37788: cxgb4: fix memory leak in cxgb4_init_ethtool_filters() error path |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| cxgb4: fix memory leak in cxgb4_init_ethtool_filters() error path |
| |
| In the for loop used to allocate the loc_array and bmap for each port, a |
| memory leak is possible when the allocation for loc_array succeeds, |
| but the allocation for bmap fails. This is because when the control flow |
| goes to the label free_eth_finfo, only the allocations starting from |
| (i-1)th iteration are freed. |
| |
| Fix that by freeing the loc_array in the bmap allocation error path. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37788 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.9 with commit d915c299f1da68a7dbb43895b8741c7b916c9d08 and fixed in 5.10.237 with commit e9de08e15aee35b96064960f95997bb6c1209c4b |
| Issue introduced in 5.9 with commit d915c299f1da68a7dbb43895b8741c7b916c9d08 and fixed in 5.15.181 with commit 118d05b530343cd9322607b9719405ba254a4183 |
| Issue introduced in 5.9 with commit d915c299f1da68a7dbb43895b8741c7b916c9d08 and fixed in 6.1.135 with commit fa2d7708955e4f8212fd69bab1da604e60cb0b15 |
| Issue introduced in 5.9 with commit d915c299f1da68a7dbb43895b8741c7b916c9d08 and fixed in 6.6.88 with commit 08aa59c0be768596467552c129e9f82166779a67 |
| Issue introduced in 5.9 with commit d915c299f1da68a7dbb43895b8741c7b916c9d08 and fixed in 6.12.25 with commit dafb6e433ab2333b67be05433dc9c6ccbc7b1284 |
| Issue introduced in 5.9 with commit d915c299f1da68a7dbb43895b8741c7b916c9d08 and fixed in 6.14.4 with commit 76deedea08899885f076aba0bb80bd1276446822 |
| Issue introduced in 5.9 with commit d915c299f1da68a7dbb43895b8741c7b916c9d08 and fixed in 6.15 with commit 00ffb3724ce743578163f5ade2884374554ca021 |
| |
| 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-2025-37788 |
| 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/chelsio/cxgb4/cxgb4_ethtool.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/e9de08e15aee35b96064960f95997bb6c1209c4b |
| https://git.kernel.org/stable/c/118d05b530343cd9322607b9719405ba254a4183 |
| https://git.kernel.org/stable/c/fa2d7708955e4f8212fd69bab1da604e60cb0b15 |
| https://git.kernel.org/stable/c/08aa59c0be768596467552c129e9f82166779a67 |
| https://git.kernel.org/stable/c/dafb6e433ab2333b67be05433dc9c6ccbc7b1284 |
| https://git.kernel.org/stable/c/76deedea08899885f076aba0bb80bd1276446822 |
| https://git.kernel.org/stable/c/00ffb3724ce743578163f5ade2884374554ca021 |
