| 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-2025-39778: objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| objtool, nvmet: Fix out-of-bounds stack access in nvmet_ctrl_state_show() |
| |
| The csts_state_names[] array only has six sparse entries, but the |
| iteration code in nvmet_ctrl_state_show() iterates seven, resulting in a |
| potential out-of-bounds stack read. Fix that. |
| |
| Fixes the following warning with an UBSAN kernel: |
| |
| vmlinux.o: warning: objtool: .text.nvmet_ctrl_state_show: unexpected end of section |
| |
| The Linux kernel CVE team has assigned CVE-2025-39778 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.11 with commit 649fd41420a816b11b07423ebf4dbd4ac1ac2905 and fixed in 6.12.23 with commit 1adc93a525fdee8e2b311e6d5fd93eb69714ca05 |
| Issue introduced in 6.11 with commit 649fd41420a816b11b07423ebf4dbd4ac1ac2905 and fixed in 6.13.11 with commit 8fbf37a3577b4d64c150cafde338eee17b2f2ea4 |
| Issue introduced in 6.11 with commit 649fd41420a816b11b07423ebf4dbd4ac1ac2905 and fixed in 6.14.2 with commit 0cc0efc58d6c741b2868d4af24874d7fec28a575 |
| Issue introduced in 6.11 with commit 649fd41420a816b11b07423ebf4dbd4ac1ac2905 and fixed in 6.15 with commit 107a23185d990e3df6638d9a84c835f963fe30a6 |
| |
| 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-2025-39778 |
| 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/nvme/target/debugfs.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/1adc93a525fdee8e2b311e6d5fd93eb69714ca05 |
| https://git.kernel.org/stable/c/8fbf37a3577b4d64c150cafde338eee17b2f2ea4 |
| https://git.kernel.org/stable/c/0cc0efc58d6c741b2868d4af24874d7fec28a575 |
| https://git.kernel.org/stable/c/107a23185d990e3df6638d9a84c835f963fe30a6 |
