| 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-2022-49595: tcp: Fix a data-race around sysctl_tcp_probe_threshold. |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| tcp: Fix a data-race around sysctl_tcp_probe_threshold. |
| |
| While reading sysctl_tcp_probe_threshold, it can be changed concurrently. |
| Thus, we need to add READ_ONCE() to its reader. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49595 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 4.9.325 with commit 9b5dc7ad6da1373d3c60d4b869d688f996e5d219 |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 4.14.290 with commit 44768749980d53bc01980d9c060f736808d11af0 |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 4.19.254 with commit 96900fa61777402eb5056269d8000aace33a8b6c |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 5.4.208 with commit b04817c94fbd285a967d9b830b274fe9998c9c0b |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 5.10.134 with commit d452ce36f2d4c402fa3f5275c9677f80166e7fc6 |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 5.15.58 with commit f524c3e7f6cdad66b3b6a912cef47b656f8b0de3 |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 5.18.15 with commit fa5fb2cf9393db898772db8cb897ed5fd265eb78 |
| Issue introduced in 4.1 with commit 6b58e0a5f32dedb609438bb9c9c82aa6e23381f2 and fixed in 5.19 with commit 92c0aa4175474483d6cf373314343d4e624e882a |
| |
| 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-2022-49595 |
| 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/tcp_output.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/9b5dc7ad6da1373d3c60d4b869d688f996e5d219 |
| https://git.kernel.org/stable/c/44768749980d53bc01980d9c060f736808d11af0 |
| https://git.kernel.org/stable/c/96900fa61777402eb5056269d8000aace33a8b6c |
| https://git.kernel.org/stable/c/b04817c94fbd285a967d9b830b274fe9998c9c0b |
| https://git.kernel.org/stable/c/d452ce36f2d4c402fa3f5275c9677f80166e7fc6 |
| https://git.kernel.org/stable/c/f524c3e7f6cdad66b3b6a912cef47b656f8b0de3 |
| https://git.kernel.org/stable/c/fa5fb2cf9393db898772db8cb897ed5fd265eb78 |
| https://git.kernel.org/stable/c/92c0aa4175474483d6cf373314343d4e624e882a |
