| 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-2022-49601: tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept. |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| tcp/dccp: Fix a data-race around sysctl_tcp_fwmark_accept. |
| |
| While reading sysctl_tcp_fwmark_accept, it can be changed concurrently. |
| Thus, we need to add READ_ONCE() to its reader. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49601 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 4.9.325 with commit 13207f9485b5de68decf296ceb0046f5eabb2485 |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 4.14.290 with commit 45fc82706a97242539d6b841ddd7a077ec20757b |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 4.19.254 with commit abf70de2ec026ae8d7da4e79bec61888a880e00b |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.4.208 with commit a7386602a2fe2f6192477e8ede291a815da09d81 |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.10.134 with commit d4f65615db7fca3df9f7e79eadf937e6ddb03c54 |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.15.58 with commit bf3134feffe61b7a0e21f60a04743f8da0958b53 |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.18.15 with commit 526d8cf8824f613c72dba2155542295e70135f62 |
| Issue introduced in 3.16 with commit 84f39b08d7868ce10eeaf640627cb89777f0ae93 and fixed in 5.19 with commit 1a0008f9df59451d0a17806c1ee1a19857032fa8 |
| |
| 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-2022-49601 |
| 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: |
| include/net/inet_sock.h |
| |
| |
| 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/13207f9485b5de68decf296ceb0046f5eabb2485 |
| https://git.kernel.org/stable/c/45fc82706a97242539d6b841ddd7a077ec20757b |
| https://git.kernel.org/stable/c/abf70de2ec026ae8d7da4e79bec61888a880e00b |
| https://git.kernel.org/stable/c/a7386602a2fe2f6192477e8ede291a815da09d81 |
| https://git.kernel.org/stable/c/d4f65615db7fca3df9f7e79eadf937e6ddb03c54 |
| https://git.kernel.org/stable/c/bf3134feffe61b7a0e21f60a04743f8da0958b53 |
| https://git.kernel.org/stable/c/526d8cf8824f613c72dba2155542295e70135f62 |
| https://git.kernel.org/stable/c/1a0008f9df59451d0a17806c1ee1a19857032fa8 |
