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Message-ID: <2025041650-CVE-2023-53034-8c3b@gregkh> Date: Wed, 16 Apr 2025 16:11:49 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.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-rc1 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
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