| 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-2022-49638: icmp: Fix data-races around sysctl. |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| icmp: Fix data-races around sysctl. |
| |
| While reading icmp sysctl variables, they can be changed concurrently. |
| So, we need to add READ_ONCE() to avoid data-races. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49638 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 4.9.324 with commit 1740e5922fbb705637ae9fa5203db132fc45f9f6 |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 4.14.289 with commit 53ecd09ef2fb35fa69667ae8e414ef6b00fd3bf6 |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 4.19.253 with commit edeec63b13c252193d626c2a48d7a2f0e7016dc2 |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 5.4.207 with commit 0cba7ca667ceb06934746ddd9833a25847bde81d |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 5.10.132 with commit e088ceb73c24ab4774da391d54a6426f4bfaefce |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 5.15.56 with commit e2828e8c605853f71267825c9415437c0a93e4f2 |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 5.18.13 with commit 798c2cf57c63ab39c8aac24d6a3d50f4fa5eeb06 |
| Issue introduced in 3.18 with commit 4cdf507d54525842dfd9f6313fdafba039084046 and fixed in 5.19 with commit 48d7ee321ea5182c6a70782aa186422a70e67e22 |
| |
| 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-2022-49638 |
| 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: |
| net/ipv4/icmp.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/1740e5922fbb705637ae9fa5203db132fc45f9f6 |
| https://git.kernel.org/stable/c/53ecd09ef2fb35fa69667ae8e414ef6b00fd3bf6 |
| https://git.kernel.org/stable/c/edeec63b13c252193d626c2a48d7a2f0e7016dc2 |
| https://git.kernel.org/stable/c/0cba7ca667ceb06934746ddd9833a25847bde81d |
| https://git.kernel.org/stable/c/e088ceb73c24ab4774da391d54a6426f4bfaefce |
| https://git.kernel.org/stable/c/e2828e8c605853f71267825c9415437c0a93e4f2 |
| https://git.kernel.org/stable/c/798c2cf57c63ab39c8aac24d6a3d50f4fa5eeb06 |
| https://git.kernel.org/stable/c/48d7ee321ea5182c6a70782aa186422a70e67e22 |
