| 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-2024-47666: scsi: pm80xx: Set phy->enable_completion only when we wait for it |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: pm80xx: Set phy->enable_completion only when we wait for it |
| |
| pm8001_phy_control() populates the enable_completion pointer with a stack |
| address, sends a PHY_LINK_RESET / PHY_HARD_RESET, waits 300 ms, and |
| returns. The problem arises when a phy control response comes late. After |
| 300 ms the pm8001_phy_control() function returns and the passed |
| enable_completion stack address is no longer valid. Late phy control |
| response invokes complete() on a dangling enable_completion pointer which |
| leads to a kernel crash. |
| |
| The Linux kernel CVE team has assigned CVE-2024-47666 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.6.51 with commit 7b1d779647afaea9185fa2f150b1721e7c1aae89 |
| Fixed in 6.10.10 with commit f14d3e1aa613311c744af32d75125e95fc8ffb84 |
| Fixed in 6.11 with commit e4f949ef1516c0d74745ee54a0f4882c1f6c7aea |
| |
| 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-2024-47666 |
| 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/scsi/pm8001/pm8001_sas.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/7b1d779647afaea9185fa2f150b1721e7c1aae89 |
| https://git.kernel.org/stable/c/f14d3e1aa613311c744af32d75125e95fc8ffb84 |
| https://git.kernel.org/stable/c/e4f949ef1516c0d74745ee54a0f4882c1f6c7aea |
