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Message-ID: <2024102140-CVE-2022-48949-a7a1@gregkh> Date: Mon, 21 Oct 2024 22:05:41 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2022-48949: igb: Initialize mailbox message for VF reset Description =========== In the Linux kernel, the following vulnerability has been resolved: igb: Initialize mailbox message for VF reset When a MAC address is not assigned to the VF, that portion of the message sent to the VF is not set. The memory, however, is allocated from the stack meaning that information may be leaked to the VM. Initialize the message buffer to 0 so that no information is passed to the VM in this case. The Linux kernel CVE team has assigned CVE-2022-48949 to this issue. Affected and fixed versions =========================== Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 4.14.303 with commit a6629659af3f Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 4.19.270 with commit ef1d739dd1f3 Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 5.4.229 with commit c581439a9775 Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 5.10.161 with commit f2479c3daaab Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 5.15.85 with commit 367e1e3399db Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 6.0.15 with commit 51fd5ede7ed4 Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 6.1.1 with commit c383c7c35c7b Issue introduced in 4.0 with commit 6ddbc4cf1f4d and fixed in 6.2 with commit de5dc44370fb 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-2022-48949 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/net/ethernet/intel/igb/igb_main.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/a6629659af3f5c6a91e3914ea62554c975ab77f4 https://git.kernel.org/stable/c/ef1d739dd1f362aec081278ff92f943c31eb177a https://git.kernel.org/stable/c/c581439a977545d61849a72e8ed631cfc8a2a3c1 https://git.kernel.org/stable/c/f2479c3daaabccbac6c343a737615d0c595c6dc4 https://git.kernel.org/stable/c/367e1e3399dbc56fc669740c4ab60e35da632b0e https://git.kernel.org/stable/c/51fd5ede7ed42f272682a0c33d6f0767b3484a3d https://git.kernel.org/stable/c/c383c7c35c7bc15e07a04eefa060a8a80cbeae29 https://git.kernel.org/stable/c/de5dc44370fbd6b46bd7f1a1e00369be54a041c8
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