| 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-2023-52768: wifi: wilc1000: use vmm_table as array in wilc struct |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: wilc1000: use vmm_table as array in wilc struct |
| |
| Enabling KASAN and running some iperf tests raises some memory issues with |
| vmm_table: |
| |
| BUG: KASAN: slab-out-of-bounds in wilc_wlan_handle_txq+0x6ac/0xdb4 |
| Write of size 4 at addr c3a61540 by task wlan0-tx/95 |
| |
| KASAN detects that we are writing data beyond range allocated to vmm_table. |
| There is indeed a mismatch between the size passed to allocator in |
| wilc_wlan_init, and the range of possible indexes used later: allocation |
| size is missing a multiplication by sizeof(u32) |
| |
| The Linux kernel CVE team has assigned CVE-2023-52768 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15.68 with commit 32dd0b22a5ba1dd296ccf2caf46ad44c3a8d5d98 and fixed in 5.15.140 with commit 541b3757fd443a68ed8d25968eae511a8275e7c8 |
| Issue introduced in 6.0 with commit 40b717bfcefab28a0656b8caa5e43d5449e5a671 and fixed in 6.1.64 with commit 4b0d6ddb6466d10df878a7787f175a0e4adc3e27 |
| Issue introduced in 6.0 with commit 40b717bfcefab28a0656b8caa5e43d5449e5a671 and fixed in 6.5.13 with commit 6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e |
| Issue introduced in 6.0 with commit 40b717bfcefab28a0656b8caa5e43d5449e5a671 and fixed in 6.6.3 with commit 3ce1c2c3999b232258f7aabab311d47dda75605c |
| Issue introduced in 6.0 with commit 40b717bfcefab28a0656b8caa5e43d5449e5a671 and fixed in 6.7 with commit 05ac1a198a63ad66bf5ae8b7321407c102d40ef3 |
| Issue introduced in 5.19.9 with commit 5212d958f6518003cd98c9886f8e8aedcfc25741 |
| |
| 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-2023-52768 |
| 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/wireless/microchip/wilc1000/wlan.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/541b3757fd443a68ed8d25968eae511a8275e7c8 |
| https://git.kernel.org/stable/c/4b0d6ddb6466d10df878a7787f175a0e4adc3e27 |
| https://git.kernel.org/stable/c/6aaf7cd8bdfe245d3c9a8b48fe70c2011965948e |
| https://git.kernel.org/stable/c/3ce1c2c3999b232258f7aabab311d47dda75605c |
| https://git.kernel.org/stable/c/05ac1a198a63ad66bf5ae8b7321407c102d40ef3 |
