| 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-2023-53034: ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans |
| |
| There is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and |
| size. This would make xlate_pos negative. |
| |
| [ 23.734156] switchtec switchtec0: MW 0: part 0 addr 0x0000000000000000 size 0x0000000000000000 |
| [ 23.734158] ================================================================================ |
| [ 23.734172] UBSAN: shift-out-of-bounds in drivers/ntb/hw/mscc/ntb_hw_switchtec.c:293:7 |
| [ 23.734418] shift exponent -1 is negative |
| |
| Ensuring xlate_pos is a positive or zero before BIT. |
| |
| The Linux kernel CVE team has assigned CVE-2023-53034 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 5.4.292 with commit f56951f211f181410a383d305e8d370993e45294 |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 5.10.236 with commit 5b6857bb3bfb0dae17fab1e42c1e82c204a508b1 |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 5.15.180 with commit 2429bdf26a0f3950fdd996861e9c1a3873af1dbe |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 6.1.134 with commit 7ed22f8d8be26225a78cf5e85b2036421a6bf2d5 |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 6.6.87 with commit c61a3f2df162ba424be0141649a9ef5f28eaccc1 |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 6.12.23 with commit cb153bdc1812a3375639ed6ca5f147eaefb65349 |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 6.13.11 with commit 36d32cfb00d42e865396424bb5d340fc0a28870d |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 6.14.2 with commit 0df2e03e4620548b41891b4e0d1bd9d2e0d8a39a |
| Issue introduced in 4.16 with commit 1e2fd202f8593985cdadca32e0c322f98e7fe7cb and fixed in 6.15 with commit de203da734fae00e75be50220ba5391e7beecdf9 |
| |
| 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-2023-53034 |
| 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/ntb/hw/mscc/ntb_hw_switchtec.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/f56951f211f181410a383d305e8d370993e45294 |
| https://git.kernel.org/stable/c/5b6857bb3bfb0dae17fab1e42c1e82c204a508b1 |
| https://git.kernel.org/stable/c/2429bdf26a0f3950fdd996861e9c1a3873af1dbe |
| https://git.kernel.org/stable/c/7ed22f8d8be26225a78cf5e85b2036421a6bf2d5 |
| https://git.kernel.org/stable/c/c61a3f2df162ba424be0141649a9ef5f28eaccc1 |
| https://git.kernel.org/stable/c/cb153bdc1812a3375639ed6ca5f147eaefb65349 |
| https://git.kernel.org/stable/c/36d32cfb00d42e865396424bb5d340fc0a28870d |
| https://git.kernel.org/stable/c/0df2e03e4620548b41891b4e0d1bd9d2e0d8a39a |
| https://git.kernel.org/stable/c/de203da734fae00e75be50220ba5391e7beecdf9 |
