| 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-2021-46963: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() |
| |
| RIP: 0010:kmem_cache_free+0xfa/0x1b0 |
| Call Trace: |
| qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx] |
| scsi_queue_rq+0x5e2/0xa40 |
| __blk_mq_try_issue_directly+0x128/0x1d0 |
| blk_mq_request_issue_directly+0x4e/0xb0 |
| |
| Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now |
| allocated by upper layers. This fixes smatch warning of srb unintended |
| free. |
| |
| The Linux kernel CVE team has assigned CVE-2021-46963 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.19.90 with commit 64a8c5018a4b21b04a756a56c495ef47c14e92d9 and fixed in 4.19.191 with commit c5ab9b67d8b061de74e2ca51bf787ee599bd7f89 |
| Issue introduced in 5.4.4 with commit dea6ee7173039d489977c9ed92e3749154615db4 and fixed in 5.4.118 with commit 77509a238547863040a42d57c72403f7d4c89a8f |
| Issue introduced in 5.5 with commit af2a0c51b1205327f55a7e82e530403ae1d42cbb and fixed in 5.10.36 with commit 702cdaa2c6283c135ef16d52e0e4e3c1005aa538 |
| Issue introduced in 5.5 with commit af2a0c51b1205327f55a7e82e530403ae1d42cbb and fixed in 5.11.20 with commit 80ef24175df2cba3860d0369d1c662b49ee2de56 |
| Issue introduced in 5.5 with commit af2a0c51b1205327f55a7e82e530403ae1d42cbb and fixed in 5.12.3 with commit a73208e3244127ef9f2cdf24e4adb947aaa32053 |
| Issue introduced in 5.5 with commit af2a0c51b1205327f55a7e82e530403ae1d42cbb and fixed in 5.13 with commit 6641df81ab799f28a5d564f860233dd26cca0d93 |
| Issue introduced in 5.3.17 with commit 4a1cc2f71bc57cf8dee6f58e7d2355a43aabb312 |
| |
| 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-2021-46963 |
| 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/qla2xxx/qla_os.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/c5ab9b67d8b061de74e2ca51bf787ee599bd7f89 |
| https://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f |
| https://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538 |
| https://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56 |
| https://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053 |
| https://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93 |
