| 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-2025-37836: PCI: Fix reference leak in pci_register_host_bridge() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| PCI: Fix reference leak in pci_register_host_bridge() |
| |
| If device_register() fails, call put_device() to give up the reference to |
| avoid a memory leak, per the comment at device_register(). |
| |
| Found by code review. |
| |
| [bhelgaas: squash Dan Carpenter's double free fix from |
| https://lore.kernel.org/r/db806a6c-a91b-4e5a-a84b-6b7e01bdac85@stanley.mountain] |
| |
| The Linux kernel CVE team has assigned CVE-2025-37836 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 5.10.237 with commit f4db1b2c9ae3d013733c302ee70cac943b7070c0 |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 5.15.181 with commit 3297497ad2246eb9243849bfbbc57a0dea97d76e |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 6.1.136 with commit b783478e0c53ffb4f04f25fb4e21ef7f482b05df |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 6.6.89 with commit bd2a352a0d72575f1842d28c14c10089f0cfe1ae |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 6.12.24 with commit 9707d0c932f41006a2701afc926b232b50e356b4 |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 6.13.12 with commit bbba4c50a2d2a1d3f3bf31cc4b8280cb492bf2c7 |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 6.14.3 with commit f9208aec86226524ec1cb68a09ac70e974ea6536 |
| Issue introduced in 4.10 with commit 37d6a0a6f4700ad3ae7bbf8db38b4557e97b3fe4 and fixed in 6.15 with commit 804443c1f27883926de94c849d91f5b7d7d696e9 |
| |
| 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-2025-37836 |
| 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/pci/probe.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/f4db1b2c9ae3d013733c302ee70cac943b7070c0 |
| https://git.kernel.org/stable/c/3297497ad2246eb9243849bfbbc57a0dea97d76e |
| https://git.kernel.org/stable/c/b783478e0c53ffb4f04f25fb4e21ef7f482b05df |
| https://git.kernel.org/stable/c/bd2a352a0d72575f1842d28c14c10089f0cfe1ae |
| https://git.kernel.org/stable/c/9707d0c932f41006a2701afc926b232b50e356b4 |
| https://git.kernel.org/stable/c/bbba4c50a2d2a1d3f3bf31cc4b8280cb492bf2c7 |
| https://git.kernel.org/stable/c/f9208aec86226524ec1cb68a09ac70e974ea6536 |
| https://git.kernel.org/stable/c/804443c1f27883926de94c849d91f5b7d7d696e9 |
