| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.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 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 4.14.303 with commit a6629659af3f5c6a91e3914ea62554c975ab77f4 |
| Issue introduced in 4.0 with commit 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 4.19.270 with commit ef1d739dd1f362aec081278ff92f943c31eb177a |
| Issue introduced in 4.0 with commit 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 5.4.229 with commit c581439a977545d61849a72e8ed631cfc8a2a3c1 |
| Issue introduced in 4.0 with commit 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 5.10.161 with commit f2479c3daaabccbac6c343a737615d0c595c6dc4 |
| Issue introduced in 4.0 with commit 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 5.15.85 with commit 367e1e3399dbc56fc669740c4ab60e35da632b0e |
| Issue introduced in 4.0 with commit 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 6.0.15 with commit 51fd5ede7ed42f272682a0c33d6f0767b3484a3d |
| Issue introduced in 4.0 with commit 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 6.1.1 with commit c383c7c35c7bc15e07a04eefa060a8a80cbeae29 |
| Issue introduced in 4.0 with commit 6ddbc4cf1f4d5a3a58b4223c80881f299dae3774 and fixed in 6.2 with commit de5dc44370fbd6b46bd7f1a1e00369be54a041c8 |
| |
| 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 |
