CVE-2022-21546 — NULL Pointer Dereference in Linux
Severity
7.8HIGHNVD
OSV8.8
EPSS
0.1%
top 79.20%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMay 2
Latest updateSep 2
Description
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 cod…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages5 packages
▶CVEListV5linux/linuxf6970ad31d42fceb38b5595cbad093a4d0bfcc43 — 54e57be2573cf0b8bf650375fd8752987b6c3d3b+4
Also affects: Debian Linux 11.0