| From bippy-1.1.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-49917: ipvs: fix WARNING in ip_vs_app_net_cleanup() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ipvs: fix WARNING in ip_vs_app_net_cleanup() |
| |
| During the initialization of ip_vs_app_net_init(), if file ip_vs_app |
| fails to be created, the initialization is successful by default. |
| Therefore, the ip_vs_app file doesn't be found during the remove in |
| ip_vs_app_net_cleanup(). It will cause WRNING. |
| |
| The following is the stack information: |
| name 'ip_vs_app' |
| WARNING: CPU: 1 PID: 9 at fs/proc/generic.c:712 remove_proc_entry+0x389/0x460 |
| Modules linked in: |
| Workqueue: netns cleanup_net |
| RIP: 0010:remove_proc_entry+0x389/0x460 |
| Call Trace: |
| <TASK> |
| ops_exit_list+0x125/0x170 |
| cleanup_net+0x4ea/0xb00 |
| process_one_work+0x9bf/0x1710 |
| worker_thread+0x665/0x1080 |
| kthread+0x2e4/0x3a0 |
| ret_from_fork+0x1f/0x30 |
| </TASK> |
| |
| The Linux kernel CVE team has assigned CVE-2022-49917 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.24 with commit 457c4cbc5a3dde259d2a1f15d5f9785290397267 and fixed in 4.19.265 with commit adc76740ccd52e4a1d910767cd1223e134a7078b |
| Issue introduced in 2.6.24 with commit 457c4cbc5a3dde259d2a1f15d5f9785290397267 and fixed in 5.4.224 with commit 8457a00c981fe1a799ce34123908856b0f5973b8 |
| Issue introduced in 2.6.24 with commit 457c4cbc5a3dde259d2a1f15d5f9785290397267 and fixed in 5.10.154 with commit 2c8d81bdb2684d53d6cedad7410ba4cf9090e343 |
| Issue introduced in 2.6.24 with commit 457c4cbc5a3dde259d2a1f15d5f9785290397267 and fixed in 5.15.78 with commit 06d7596d18725f1a93cf817662d36050e5afb989 |
| Issue introduced in 2.6.24 with commit 457c4cbc5a3dde259d2a1f15d5f9785290397267 and fixed in 6.0.8 with commit 97f872b00937f2689bff2dab4ad9ed259482840f |
| Issue introduced in 2.6.24 with commit 457c4cbc5a3dde259d2a1f15d5f9785290397267 and fixed in 6.1 with commit 5663ed63adb9619c98ab7479aa4606fa9b7a548c |
| |
| 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-2022-49917 |
| 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/netfilter/ipvs/ip_vs_app.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/adc76740ccd52e4a1d910767cd1223e134a7078b |
| https://git.kernel.org/stable/c/8457a00c981fe1a799ce34123908856b0f5973b8 |
| https://git.kernel.org/stable/c/2c8d81bdb2684d53d6cedad7410ba4cf9090e343 |
| https://git.kernel.org/stable/c/06d7596d18725f1a93cf817662d36050e5afb989 |
| https://git.kernel.org/stable/c/97f872b00937f2689bff2dab4ad9ed259482840f |
| https://git.kernel.org/stable/c/5663ed63adb9619c98ab7479aa4606fa9b7a548c |
