| 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-2024-26790: dmaengine: fsl-qdma: fix SoC may hang on 16 byte unaligned read |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| dmaengine: fsl-qdma: fix SoC may hang on 16 byte unaligned read |
| |
| There is chip (ls1028a) errata: |
| |
| The SoC may hang on 16 byte unaligned read transactions by QDMA. |
| |
| Unaligned read transactions initiated by QDMA may stall in the NOC |
| (Network On-Chip), causing a deadlock condition. Stalled transactions will |
| trigger completion timeouts in PCIe controller. |
| |
| Workaround: |
| Enable prefetch by setting the source descriptor prefetchable bit |
| ( SD[PF] = 1 ). |
| |
| Implement this workaround. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26790 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.1 with commit b092529e0aa09829a6404424ce167bf3ce3235e2 and fixed in 5.4.271 with commit 518d78b4fac68cac29a263554d7f3b19da99d0da |
| Issue introduced in 5.1 with commit b092529e0aa09829a6404424ce167bf3ce3235e2 and fixed in 5.10.212 with commit bb3a06e9b9a30e33d96aadc0e077be095a4f8580 |
| Issue introduced in 5.1 with commit b092529e0aa09829a6404424ce167bf3ce3235e2 and fixed in 5.15.151 with commit 106c1ac953a66556ec77456c46e818208d3a9bce |
| Issue introduced in 5.1 with commit b092529e0aa09829a6404424ce167bf3ce3235e2 and fixed in 6.1.81 with commit 237ecf1afe6c22534fa43abdf2bf0b0f52de0aaa |
| Issue introduced in 5.1 with commit b092529e0aa09829a6404424ce167bf3ce3235e2 and fixed in 6.6.21 with commit 5b696e9c388251f1c7373be92293769a489fd367 |
| Issue introduced in 5.1 with commit b092529e0aa09829a6404424ce167bf3ce3235e2 and fixed in 6.7.9 with commit ad2f8920c314e0a2d9e984fc94b729eca3cda471 |
| Issue introduced in 5.1 with commit b092529e0aa09829a6404424ce167bf3ce3235e2 and fixed in 6.8 with commit 9d739bccf261dd93ec1babf82f5c5d71dd4caa3e |
| |
| 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-2024-26790 |
| 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/dma/fsl-qdma.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/518d78b4fac68cac29a263554d7f3b19da99d0da |
| https://git.kernel.org/stable/c/bb3a06e9b9a30e33d96aadc0e077be095a4f8580 |
| https://git.kernel.org/stable/c/106c1ac953a66556ec77456c46e818208d3a9bce |
| https://git.kernel.org/stable/c/237ecf1afe6c22534fa43abdf2bf0b0f52de0aaa |
| https://git.kernel.org/stable/c/5b696e9c388251f1c7373be92293769a489fd367 |
| https://git.kernel.org/stable/c/ad2f8920c314e0a2d9e984fc94b729eca3cda471 |
| https://git.kernel.org/stable/c/9d739bccf261dd93ec1babf82f5c5d71dd4caa3e |
