Описание
In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. CVSS 3.1 Base Score 7.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).
In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. CVSS 3.1 Base Score 7.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2022-21546
- https://git.kernel.org/linus/ccd3f449052449a917a3e577d8ba0368f43b8f29
- https://git.kernel.org/stable/c/4226622647e3e5ac06d3ebc1605b917446157510
- https://git.kernel.org/stable/c/54e57be2573cf0b8bf650375fd8752987b6c3d3b
- https://git.kernel.org/stable/c/ccd3f449052449a917a3e577d8ba0368f43b8f29
- https://git.kernel.org/stable/c/d8e6a27e9238dd294d6f2f401655f300dca20899
- https://linux.oracle.com/cve/CVE-2022-21546.html
- https://lore.kernel.org/all/20220628022325.14627-2-michael.christie@oracle.com
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.
In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like "sg_write_same --ndob" we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer.
In the Linux kernel, the following vulnerability has been resolved: s ...
ELSA-2022-9788: Unbreakable Enterprise kernel-container security update (IMPORTANT)
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