| 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-2023-53140: scsi: core: Remove the /proc/scsi/${proc_name} directory earlier |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: core: Remove the /proc/scsi/${proc_name} directory earlier |
| |
| Remove the /proc/scsi/${proc_name} directory earlier to fix a race |
| condition between unloading and reloading kernel modules. This fixes a bug |
| introduced in 2009 by commit 77c019768f06 ("[SCSI] fix /proc memory leak in |
| the SCSI core"). |
| |
| Fix the following kernel warning: |
| |
| proc_dir_entry 'scsi/scsi_debug' already registered |
| WARNING: CPU: 19 PID: 27986 at fs/proc/generic.c:376 proc_register+0x27d/0x2e0 |
| Call Trace: |
| proc_mkdir+0xb5/0xe0 |
| scsi_proc_hostdir_add+0xb5/0x170 |
| scsi_host_alloc+0x683/0x6c0 |
| sdebug_driver_probe+0x6b/0x2d0 [scsi_debug] |
| really_probe+0x159/0x540 |
| __driver_probe_device+0xdc/0x230 |
| driver_probe_device+0x4f/0x120 |
| __device_attach_driver+0xef/0x180 |
| bus_for_each_drv+0xe5/0x130 |
| __device_attach+0x127/0x290 |
| device_initial_probe+0x17/0x20 |
| bus_probe_device+0x110/0x130 |
| device_add+0x673/0xc80 |
| device_register+0x1e/0x30 |
| sdebug_add_host_helper+0x1a7/0x3b0 [scsi_debug] |
| scsi_debug_init+0x64f/0x1000 [scsi_debug] |
| do_one_initcall+0xd7/0x470 |
| do_init_module+0xe7/0x330 |
| load_module+0x122a/0x12c0 |
| __do_sys_finit_module+0x124/0x1a0 |
| __x64_sys_finit_module+0x46/0x50 |
| do_syscall_64+0x38/0x80 |
| entry_SYSCALL_64_after_hwframe+0x46/0xb0 |
| |
| The Linux kernel CVE team has assigned CVE-2023-53140 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.30 with commit 77c019768f0607c36e25bec11ce3e1eabef09277 and fixed in 4.19.278 with commit 13daafe1e209b03e9bda16ff2bd2b2da145a139b |
| Issue introduced in 2.6.30 with commit 77c019768f0607c36e25bec11ce3e1eabef09277 and fixed in 5.4.237 with commit 891a3cba425cf483d96facca55aebd6ff1da4338 |
| Issue introduced in 2.6.30 with commit 77c019768f0607c36e25bec11ce3e1eabef09277 and fixed in 5.10.175 with commit 6b223e32d66ca9db1f252f433514783d8b22a8e1 |
| Issue introduced in 2.6.30 with commit 77c019768f0607c36e25bec11ce3e1eabef09277 and fixed in 5.15.103 with commit e471e928de97b00f297ad1015cc14f9459765713 |
| Issue introduced in 2.6.30 with commit 77c019768f0607c36e25bec11ce3e1eabef09277 and fixed in 6.1.20 with commit 17e98a5ede81b7696bec421f7afa2dfe467f5e6b |
| Issue introduced in 2.6.30 with commit 77c019768f0607c36e25bec11ce3e1eabef09277 and fixed in 6.2.7 with commit 1ec363599f8346d5a8d08c71a0d9860d6c420ec0 |
| Issue introduced in 2.6.30 with commit 77c019768f0607c36e25bec11ce3e1eabef09277 and fixed in 6.3 with commit fc663711b94468f4e1427ebe289c9f05669699c9 |
| |
| 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-2023-53140 |
| 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: |
| drivers/scsi/hosts.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/13daafe1e209b03e9bda16ff2bd2b2da145a139b |
| https://git.kernel.org/stable/c/891a3cba425cf483d96facca55aebd6ff1da4338 |
| https://git.kernel.org/stable/c/6b223e32d66ca9db1f252f433514783d8b22a8e1 |
| https://git.kernel.org/stable/c/e471e928de97b00f297ad1015cc14f9459765713 |
| https://git.kernel.org/stable/c/17e98a5ede81b7696bec421f7afa2dfe467f5e6b |
| https://git.kernel.org/stable/c/1ec363599f8346d5a8d08c71a0d9860d6c420ec0 |
| https://git.kernel.org/stable/c/fc663711b94468f4e1427ebe289c9f05669699c9 |
