| 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-2024-56771: mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information |
| |
| These four chips: |
| * W25N512GW |
| * W25N01GW |
| * W25N01JW |
| * W25N02JW |
| all require a single bit of ECC strength and thus feature an on-die |
| Hamming-like ECC engine. There is no point in filling a ->get_status() |
| callback for them because the main ECC status bytes are located in |
| standard places, and retrieving the number of bitflips in case of |
| corrected chunk is both useless and unsupported (if there are bitflips, |
| then there is 1 at most, so no need to query the chip for that). |
| |
| Without this change, a kernel warning triggers every time a bit flips. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56771 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.7 with commit 6a804fb72de56d6a99b799f565ae45f2cec7cd55 and fixed in 6.12.4 with commit 234d5f75c3ae911b52c5e4442b8a87fbbd129836 |
| Issue introduced in 6.7 with commit 6a804fb72de56d6a99b799f565ae45f2cec7cd55 and fixed in 6.13 with commit fee9b240916df82a8b07aef0fdfe96785417a164 |
| |
| 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-2024-56771 |
| 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/mtd/nand/spi/winbond.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/234d5f75c3ae911b52c5e4442b8a87fbbd129836 |
| https://git.kernel.org/stable/c/fee9b240916df82a8b07aef0fdfe96785417a164 |
