| 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-2022-49121: scsi: pm8001: Fix tag leaks on error |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| scsi: pm8001: Fix tag leaks on error |
| |
| In pm8001_chip_set_dev_state_req(), pm8001_chip_fw_flash_update_req(), |
| pm80xx_chip_phy_ctl_req() and pm8001_chip_reg_dev_req() add missing calls |
| to pm8001_tag_free() to free the allocated tag when pm8001_mpi_build_cmd() |
| fails. |
| |
| Similarly, in pm8001_exec_internal_task_abort(), if the chip ->task_abort |
| method fails, the tag allocated for the abort request task must be |
| freed. Add the missing call to pm8001_tag_free(). |
| |
| The Linux kernel CVE team has assigned CVE-2022-49121 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.10.111 with commit a0bb65eadbf942024226241d9d99fed17168940b |
| Fixed in 5.15.34 with commit 43c617eefab7077d69f5989ad3e2a273da1d728b |
| Fixed in 5.16.20 with commit bdc74815f1c39905054b7d47399e0260b201b14d |
| Fixed in 5.17.3 with commit 9cc72bcc1c096ed42c91646f130d4b4191580a4c |
| Fixed in 5.18 with commit 4c8f04b1905cd4b776d0b720463c091545478ef7 |
| |
| 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-2022-49121 |
| 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/pm8001/pm8001_hwi.c |
| drivers/scsi/pm8001/pm8001_sas.c |
| drivers/scsi/pm8001/pm80xx_hwi.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/a0bb65eadbf942024226241d9d99fed17168940b |
| https://git.kernel.org/stable/c/43c617eefab7077d69f5989ad3e2a273da1d728b |
| https://git.kernel.org/stable/c/bdc74815f1c39905054b7d47399e0260b201b14d |
| https://git.kernel.org/stable/c/9cc72bcc1c096ed42c91646f130d4b4191580a4c |
| https://git.kernel.org/stable/c/4c8f04b1905cd4b776d0b720463c091545478ef7 |
