| 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-2021-47344: media: zr364xx: fix memory leak in zr364xx_start_readpipe |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: zr364xx: fix memory leak in zr364xx_start_readpipe |
| |
| syzbot reported memory leak in zr364xx driver. |
| The problem was in non-freed urb in case of |
| usb_submit_urb() fail. |
| |
| backtrace: |
| [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline] |
| [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 |
| [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 |
| [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline] |
| [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516 |
| [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 |
| [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576 |
| |
| The Linux kernel CVE team has assigned CVE-2021-47344 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 4.4.276 with commit c57b2bd3247925e253729dce283d6bf6abc9339d |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 4.9.276 with commit bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513 |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 4.14.240 with commit b0633051a6cb24186ff04ce1af99c7de18c1987e |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 4.19.198 with commit 021c294dff030f3ba38eb81e400ba123db32ecbc |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 5.4.133 with commit 0edd6759167295ea9969e89283b81017b4c688aa |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 5.10.51 with commit c57bfd8000d7677bf435873b440eec0c47f73a08 |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 5.12.18 with commit 5f3f81f1c96b501d180021c23c25e9f48eaab235 |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 5.13.3 with commit d69b39d89f362cfeeb54a68690768d0d257b2c8f |
| Issue introduced in 2.6.32 with commit ccbf035ae5de4c535160fc99f73feb44cc55b534 and fixed in 5.14 with commit 0a045eac8d0427b64577a24d74bb8347c905ac65 |
| |
| 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-2021-47344 |
| 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/usb/zr364xx/zr364xx.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/c57b2bd3247925e253729dce283d6bf6abc9339d |
| https://git.kernel.org/stable/c/bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513 |
| https://git.kernel.org/stable/c/b0633051a6cb24186ff04ce1af99c7de18c1987e |
| https://git.kernel.org/stable/c/021c294dff030f3ba38eb81e400ba123db32ecbc |
| https://git.kernel.org/stable/c/0edd6759167295ea9969e89283b81017b4c688aa |
| https://git.kernel.org/stable/c/c57bfd8000d7677bf435873b440eec0c47f73a08 |
| https://git.kernel.org/stable/c/5f3f81f1c96b501d180021c23c25e9f48eaab235 |
| https://git.kernel.org/stable/c/d69b39d89f362cfeeb54a68690768d0d257b2c8f |
| https://git.kernel.org/stable/c/0a045eac8d0427b64577a24d74bb8347c905ac65 |
