| 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-2024-49981: media: venus: fix use after free bug in venus_remove due to race condition |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: venus: fix use after free bug in venus_remove due to race condition |
| |
| in venus_probe, core->work is bound with venus_sys_error_handler, which is |
| used to handle error. The code use core->sys_err_done to make sync work. |
| The core->work is started in venus_event_notify. |
| |
| If we call venus_remove, there might be an unfished work. The possible |
| sequence is as follows: |
| |
| CPU0 CPU1 |
| |
| |venus_sys_error_handler |
| venus_remove | |
| hfi_destroy | |
| venus_hfi_destroy | |
| kfree(hdev); | |
| |hfi_reinit |
| |venus_hfi_queues_reinit |
| |//use hdev |
| |
| Fix it by canceling the work in venus_remove. |
| |
| The Linux kernel CVE team has assigned CVE-2024-49981 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 4.19.323 with commit 5098b9e6377577fe13d03e1d8914930f014a3314 |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 5.4.285 with commit 63bbe26471ebdcc3c20bb4cc3950d666279ad658 |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 5.10.227 with commit 60b6968341a6dd5353554f3e72db554693a128a5 |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 5.15.168 with commit bf6be32e2d39f6301ff1831e249d32a8744ab28a |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 6.1.113 with commit 2a541fcc0bd2b05a458e9613376df1289ec11621 |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 6.6.55 with commit b0686aedc5f1343442d044bd64eeac7e7a391f4e |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 6.10.14 with commit d925e9f7fb5a2dbefd1a73fc01061f38c7becd4c |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 6.11.3 with commit 10941d4f99a5a34999121b314afcd9c0a1c14f15 |
| Issue introduced in 4.13 with commit af2c3834c8ca7cc65d15592ac671933df8848115 and fixed in 6.12 with commit c5a85ed88e043474161bbfe54002c89c1cb50ee2 |
| |
| 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-2024-49981 |
| 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/media/platform/qcom/venus/core.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/5098b9e6377577fe13d03e1d8914930f014a3314 |
| https://git.kernel.org/stable/c/63bbe26471ebdcc3c20bb4cc3950d666279ad658 |
| https://git.kernel.org/stable/c/60b6968341a6dd5353554f3e72db554693a128a5 |
| https://git.kernel.org/stable/c/bf6be32e2d39f6301ff1831e249d32a8744ab28a |
| https://git.kernel.org/stable/c/2a541fcc0bd2b05a458e9613376df1289ec11621 |
| https://git.kernel.org/stable/c/b0686aedc5f1343442d044bd64eeac7e7a391f4e |
| https://git.kernel.org/stable/c/d925e9f7fb5a2dbefd1a73fc01061f38c7becd4c |
| https://git.kernel.org/stable/c/10941d4f99a5a34999121b314afcd9c0a1c14f15 |
| https://git.kernel.org/stable/c/c5a85ed88e043474161bbfe54002c89c1cb50ee2 |
