| 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-2022-48799: perf: Fix list corruption in perf_cgroup_switch() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| perf: Fix list corruption in perf_cgroup_switch() |
| |
| There's list corruption on cgrp_cpuctx_list. This happens on the |
| following path: |
| |
| perf_cgroup_switch: list_for_each_entry(cgrp_cpuctx_list) |
| cpu_ctx_sched_in |
| ctx_sched_in |
| ctx_pinned_sched_in |
| merge_sched_in |
| perf_cgroup_event_disable: remove the event from the list |
| |
| Use list_for_each_entry_safe() to allow removing an entry during |
| iteration. |
| |
| The Linux kernel CVE team has assigned CVE-2022-48799 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.11 with commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8 and fixed in 4.14.267 with commit 5d76ed4223403f90421782adb2f20a9ecbc93186 |
| Issue introduced in 4.11 with commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8 and fixed in 4.19.230 with commit 30d9f3cbe47e1018ddc8069ac5b5c9e66fbdf727 |
| Issue introduced in 4.11 with commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8 and fixed in 5.4.180 with commit a2ed7b29d0673ba361546e2d87dbbed149456c45 |
| Issue introduced in 4.11 with commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8 and fixed in 5.10.101 with commit f6b5d51976fcefef5732da3e3feb3ccff680f7c8 |
| Issue introduced in 4.11 with commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8 and fixed in 5.15.24 with commit 7969fe91c9830e045901970e9d755b7505881d4a |
| Issue introduced in 4.11 with commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8 and fixed in 5.16.10 with commit 2142bc1469a316fddd10012d76428f7265258f81 |
| Issue introduced in 4.11 with commit 058fe1c0440e68a1ba3c2270ae43e9f0298b27d8 and fixed in 5.17 with commit 5f4e5ce638e6a490b976ade4a40017b40abb2da0 |
| |
| 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-2022-48799 |
| 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: |
| kernel/events/core.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/5d76ed4223403f90421782adb2f20a9ecbc93186 |
| https://git.kernel.org/stable/c/30d9f3cbe47e1018ddc8069ac5b5c9e66fbdf727 |
| https://git.kernel.org/stable/c/a2ed7b29d0673ba361546e2d87dbbed149456c45 |
| https://git.kernel.org/stable/c/f6b5d51976fcefef5732da3e3feb3ccff680f7c8 |
| https://git.kernel.org/stable/c/7969fe91c9830e045901970e9d755b7505881d4a |
| https://git.kernel.org/stable/c/2142bc1469a316fddd10012d76428f7265258f81 |
| https://git.kernel.org/stable/c/5f4e5ce638e6a490b976ade4a40017b40abb2da0 |
