CVE-2026-22998 — NULL Pointer Dereference in Linux
Severity
7.5HIGHNVD
EPSS
0.0%
top 86.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 25
Latest updateApr 17
Description
In the Linux kernel, the following vulnerability has been resolved:
nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
Commit efa56305908b ("nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length")
added ttag bounds checking and data_offset
validation in nvmet_tcp_handle_h2c_data_pdu(), but it did not validate
whether the command's data structures (cmd->req.sg and cmd->iov) have
been properly initialized before processing H2C_DATA PDUs.
The nvmet_tcp_build_p…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages12 packages
▶CVEListV5linux/linuxf775f2621c2ac5cc3a0b3a64665dad4fb146e510 — baabe43a0edefac8cd7b981ff87f967f6034dafe+9
Patches
🔴Vulnerability Details
2GHSA▶
GHSA-xjx5-8v38-q6gh: In the Linux kernel, the following vulnerability has been resolved:
nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
Commit efa5↗2026-01-25
OSV▶
CVE-2026-22998: In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec Commit efa563↗2026-01-25