| 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-2025-22095: PCI: brcmstb: Fix error path after a call to regulator_bulk_get() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| PCI: brcmstb: Fix error path after a call to regulator_bulk_get() |
| |
| If the regulator_bulk_get() returns an error and no regulators |
| are created, we need to set their number to zero. |
| |
| If we don't do this and the PCIe link up fails, a call to the |
| regulator_bulk_free() will result in a kernel panic. |
| |
| While at it, print the error value, as we cannot return an error |
| upwards as the kernel will WARN() on an error from add_bus(). |
| |
| [kwilczynski: commit log, use comma in the message to match style with |
| other similar messages] |
| |
| The Linux kernel CVE team has assigned CVE-2025-22095 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.0 with commit 9e6be018b26347c26a93e63fb50a37ee2c9311de and fixed in 6.1.134 with commit 99a0efba9f903acbdece548862b6b4cbe7d999e1 |
| Issue introduced in 6.0 with commit 9e6be018b26347c26a93e63fb50a37ee2c9311de and fixed in 6.6.87 with commit eedd054834930b8d678f0776cd4b091b8fffbb4a |
| Issue introduced in 6.0 with commit 9e6be018b26347c26a93e63fb50a37ee2c9311de and fixed in 6.12.23 with commit df63321a40cc98e52313cffbff376b8ae9ceffa7 |
| Issue introduced in 6.0 with commit 9e6be018b26347c26a93e63fb50a37ee2c9311de and fixed in 6.13.11 with commit 7842e842a9bf6bd5866c84f588353711d131ab1a |
| Issue introduced in 6.0 with commit 9e6be018b26347c26a93e63fb50a37ee2c9311de and fixed in 6.14.2 with commit 6f44e1fdb006db61394aa4d4c25728ada00842e7 |
| Issue introduced in 6.0 with commit 9e6be018b26347c26a93e63fb50a37ee2c9311de and fixed in 6.15 with commit 3651ad5249c51cf7eee078e12612557040a6bdb4 |
| |
| 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-2025-22095 |
| 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/controller/pcie-brcmstb.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/99a0efba9f903acbdece548862b6b4cbe7d999e1 |
| https://git.kernel.org/stable/c/eedd054834930b8d678f0776cd4b091b8fffbb4a |
| https://git.kernel.org/stable/c/df63321a40cc98e52313cffbff376b8ae9ceffa7 |
| https://git.kernel.org/stable/c/7842e842a9bf6bd5866c84f588353711d131ab1a |
| https://git.kernel.org/stable/c/6f44e1fdb006db61394aa4d4c25728ada00842e7 |
| https://git.kernel.org/stable/c/3651ad5249c51cf7eee078e12612557040a6bdb4 |
