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Message-ID: <2025050959-CVE-2025-37872-6e2f@gregkh> Date: Fri, 9 May 2025 08:44:06 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2025-37872: net: txgbe: fix memory leak in txgbe_probe() error path From: Greg Kroah-Hartman <gregkh@...nel.org> 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-rc3 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
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