| 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-2024-42130: nfc/nci: Add the inconsistency check between the input data length and count |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| nfc/nci: Add the inconsistency check between the input data length and count |
| |
| write$nci(r0, &(0x7f0000000740)=ANY=[@ANYBLOB="610501"], 0xf) |
| |
| Syzbot constructed a write() call with a data length of 3 bytes but a count value |
| of 15, which passed too little data to meet the basic requirements of the function |
| nci_rf_intf_activated_ntf_packet(). |
| |
| Therefore, increasing the comparison between data length and count value to avoid |
| problems caused by inconsistent data length and count. |
| |
| The Linux kernel CVE team has assigned CVE-2024-42130 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.15.163 with commit f07bcd8bba803c9e6ad2048543185d6c56587a2f |
| Fixed in 6.1.98 with commit 41f5e2840cd0629f049ce5ce2f8dd10a8299de42 |
| Fixed in 6.6.39 with commit 056478b4321b36ca33567089d39ac992f6c9c37a |
| Fixed in 6.9.9 with commit 22a72c1c10f43ca645a98725e0faff34592f4d08 |
| Fixed in 6.10 with commit 068648aab72c9ba7b0597354ef4d81ffaac7b979 |
| |
| 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-2024-42130 |
| 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/nfc/virtual_ncidev.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/f07bcd8bba803c9e6ad2048543185d6c56587a2f |
| https://git.kernel.org/stable/c/41f5e2840cd0629f049ce5ce2f8dd10a8299de42 |
| https://git.kernel.org/stable/c/056478b4321b36ca33567089d39ac992f6c9c37a |
| https://git.kernel.org/stable/c/22a72c1c10f43ca645a98725e0faff34592f4d08 |
| https://git.kernel.org/stable/c/068648aab72c9ba7b0597354ef4d81ffaac7b979 |
