CVE-2026-23112
published 2026-02-13CVE-2026-23112: In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could…
PriorityP345critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.40%
32.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU
length or offset exceeds sg_cnt and then use bogus sg->length/offset
values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining
entries, and sg->length/offset before building the bvec.
Affected
96 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.164-1 (bookworm) | linux 6.1.164-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.164-1 (bookworm) | linux 6.1.164-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 0b9981751be14b59b4473383c731c833738aebdb | 0b9981751be14b59b4473383c731c833738aebdb |
| linux | linux | >= 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 42afe8ed8ad2de9c19457156244ef3e1eca94b5d | 42afe8ed8ad2de9c19457156244ef3e1eca94b5d |
| linux | linux | >= 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 1385be357e8acd09b36e026567f3a9d5c61139de | 1385be357e8acd09b36e026567f3a9d5c61139de |
| linux | linux | >= 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < dca1a6ba0da9f472ef040525fab10fd9956db59f | dca1a6ba0da9f472ef040525fab10fd9956db59f |
| linux | linux | >= 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 19672ae68d52ff75347ebe2420dde1b07adca09f | 19672ae68d52ff75347ebe2420dde1b07adca09f |
| linux | linux | >= 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < ab200d71553bdcf4de554a5985b05b2dd606bc57 | ab200d71553bdcf4de554a5985b05b2dd606bc57 |
| linux | linux | >= 872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 52a0a98549344ca20ad81a4176d68d28e3c05a5c | 52a0a98549344ca20ad81a4176d68d28e3c05a5c |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.251-1 | 5.10.251-1 |
| linux | linux_kernel | >= 0 < 6.1.164-1 | 6.1.164-1 |
| linux | linux_kernel | >= 0 < 6.12.73-1 | 6.12.73-1 |
| linux | linux_kernel | >= 0 < 6.18.10-1 | 6.18.10-1 |
| linux | linux_kernel | >= 5.0 < 5.10.250 | 5.10.250 |
| linux | linux_kernel | >= 5.11 < 5.15.200 | 5.15.200 |
| linux | linux_kernel | >= 5.16 < 6.1.163 | 6.1.163 |
| linux | linux_kernel | >= 6.13 < 6.18.10 | 6.18.10 |
| linux | linux_kernel | >= 6.2 < 6.6.124 | 6.6.124 |
| linux | linux_kernel | >= 6.7 < 6.12.70 | 6.12.70 |
| ubuntu | aws | — | — |
| ubuntu | aws-5.15 | — | — |
| ubuntu | aws-6.8 | — | — |
| ubuntu | azure | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
vendor_ubuntu9.8CRITICAL
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Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-07-06·CVSS 5.5
CVE-2026-46325 [MEDIUM] Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- S390 architecture;
- Block layer subsystem;
- Cryptographic API;
- DMA engine subsystem;
- GPU drivers;
- InfiniBand drivers;
- Ethernet bonding driver;
- STMicroelectronics network drivers;
- Network drivers;
- NVME drivers;
- SCSI subsystem;
- USB over IP driver;
- File systems infrastructure;
- Ext4 file system;
- Network file system (NFS) server daemon;
- SMB network file system;
- Kernel thread helper (kthread);
- Distributed Switch Architecture;
- IPv6 networking;
- Netfilt
Ubuntu
Linux kernel (Oracle) vulnerabilities
vendor_ubuntu·2026-06-16·CVSS 7.8
CVE-2024-35862 [HIGH] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS
implementation in the Ubuntu Linux kernel did not properly perform
permission checks in certain situations. A local attacker could possibly
use this to gain elevated privileges. (CVE-2023-2640)
Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in
the Ubuntu Linux kernel did not properly perform permission checks in
certain situations. A local attacker could possibly use this to gain
elevated privileges. (CVE-2023-32629)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-06-16·CVSS 6.4
CVE-2026-23262 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)
It was discovered that the Linux kernel did not properly handle share
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-06-04·CVSS 5.5
CVE-2026-31504 [MEDIUM] Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)
It was discovered that the Linux kernel did not properly handle shared page
fragments during socket buffer operations, collectively known as Dirty
Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the
RxRPC networking subsystem when processing paged fragments. A local
attacker could use this to escalate privileges, or possibly escape a
container. (CVE-2026-43284, CVE-2026-43500)
Several security issues w
Ubuntu
Kernel Live Patch Security Notice
vendor_ubuntu·2026-06-01·CVSS 7.8
CVE-2026-31431 [HIGH] Kernel Live Patch Security Notice
Title: Kernel Live Patch Security Notice
Summary: Several security issues were fixed in the kernel.
In the Linux kernel, the following vulnerability has been
resolved: KVM: arm64: Tear down vGIC on failed vCPU creation If
kvm_arch_vcpu_create() fails to share the vCPU page with the hypervisor, we
propagate the error back to the ioctl but leave the vGIC vCPU data
initialised.
In the Linux kernel, the following vulnerability has been
resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length
or offset exceeds sg_cnt and then use bogus sg->length/offset values,
leading to _copy_to_iter() GPF/KASAN.
It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic opera
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2026-05-22·CVSS 7.8
CVE-2023-2640 [HIGH] Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS
implementation in the Ubuntu Linux kernel did not properly perform
permission checks in certain situations. A local attacker could possibly
use this to gain elevated privileges. (CVE-2023-2640)
Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in
the Ubuntu Linux kernel did not properly perform permission checks in
certain situations. A local attacker could possibly use this to gain
elevated privileges. (CVE-2023-32629)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following sub
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-05-19·CVSS 5.5
CVE-2026-23209 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- NVME drivers;
- IPv4 networking;
(CVE-2024-50304, CVE-2026-23112, CVE-2026-23209)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-gen
Ubuntu
Linux kernel (NVIDIA Tegra) vulnerabilities
vendor_ubuntu·2026-05-19·CVSS 9.8
CVE-2026-23231 [CRITICAL] Linux kernel (NVIDIA Tegra) vulnerabilities
Title: Linux kernel (NVIDIA Tegra) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- NVME drivers;
- Netfilter;
(CVE-2026-23112, CVE-2026-23231, CVE-2026-23273)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic,
Ubuntu
Linux kernel (Xilinx ZynqMP) vulnerabilities
vendor_ubuntu·2026-05-19·CVSS 7.8
CVE-2026-23093 [HIGH] Linux kernel (Xilinx ZynqMP) vulnerabilities
Title: Linux kernel (Xilinx ZynqMP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS
implementation in the Ubuntu Linux kernel did not properly perform
permission checks in certain situations. A local attacker could possibly
use this to gain elevated privileges. (CVE-2023-2640)
Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in
the Ubuntu Linux kernel did not properly perform permission checks in
certain situations. A local attacker could possibly use this to gain
elevated privileges. (CVE-2023-32629)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the fol
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-05-11·CVSS 9.8
CVE-2026-23231 [CRITICAL] Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- NVME drivers;
- Netfilter;
(CVE-2026-23112, CVE-2026-23231, CVE-2026-23273)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-05-11·CVSS 7.8
CVE-2026-23273 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS
implementation in the Ubuntu Linux kernel did not properly perform
permission checks in certain situations. A local attacker could possibly
use this to gain elevated privileges. (CVE-2023-2640)
Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in
the Ubuntu Linux kernel did not properly perform permission checks in
certain situations. A local attacker could possibly use this to gain
elevated privileges. (CVE-2023-32629)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following s
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-71149 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- MIPS architecture;
- PowerPC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
-
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-68781 [MEDIUM] Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- MIPS architecture;
- PowerPC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
-
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-68756 [MEDIUM] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- Network blo
Ubuntu
Linux kernel (Xilinx) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-68288 [MEDIUM] Linux kernel (Xilinx) vulnerabilities
Title: Linux kernel (Xilinx) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation,
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 7.8
CVE-2023-2640 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS
implementation in the Ubuntu Linux kernel did not properly perform
permission checks in certain situations. A local attacker could possibly
use this to gain elevated privileges. (CVE-2023-2640)
Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in
the Ubuntu Linux kernel did not properly perform permission checks in
certain situations. A local attacker could possibly use this to gain
elevated privileges. (CVE-2023-32629)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystem
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-68756 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- Network block de
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 9.8
CVE-2026-23231 [CRITICAL] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- NVME drivers;
- Netfilter;
(CVE-2026-23112, CVE-2026-23231, CVE-2026-23273)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-l
Red Hat
kernel: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
vendor_redhat·2026-02-13·CVSS 9.8
CVE-2026-23112 [CRITICAL] CWE-787 kernel: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
kernel: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU
length or offset exceeds sg_cnt and then use bogus sg->length/offset
values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining
entries, and sg->length/offset before building the bvec.
Statement: An out of bounds access in the NVMe TCP target can occur in nvmet_tcp_build_pdu_iovec when a crafted PDU length or data offset causes sg_idx to exceed cmd req sg_cnt or causes iteration past the remaining scatterlist entries. This can make the code use bogus sg length and offset values and then crash in _copy_to_iter with a genera
Debian
CVE-2026-23112: linux - In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: ...
vendor_debian·2026·CVSS 9.8
CVE-2026-23112 [CRITICAL] CVE-2026-23112: linux - In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: ...
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offset values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining entries, and sg->length/offset before building the bvec.
Scope: local
bookworm: resolved (fixed in 6.1.164-1)
bullseye: resolved (fixed in 5.10.251-1)
forky: resolved (fixed in 6.18.10-1)
sid: resolved (fixed in 6.18.10-1)
trixie: resolved (fixed in 6.12.73-1)
OSV
CVE-2026-23112: In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iove
osv·2026-02-13·CVSS 9.8
CVE-2026-23112 [CRITICAL] CVE-2026-23112: In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iove
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU length or offset exceeds sg_cnt and then use bogus sg->length/offset values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining entries, and sg->length/offset before building the bvec.
GHSA
GHSA-jjrf-jfrm-p64x: In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_io
ghsa_unreviewed·2026-02-13
CVE-2026-23112 [MEDIUM] CWE-787 GHSA-jjrf-jfrm-p64x: In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_io
In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU
length or offset exceeds sg_cnt and then use bogus sg->length/offset
values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining
entries, and sg->length/offset before building the bvec.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-23112 kernel: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
bugzilla·2026-02-13·CVSS 9.8
CVE-2026-23112 [CRITICAL] CVE-2026-23112 kernel: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
CVE-2026-23112 kernel: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU
length or offset exceeds sg_cnt and then use bogus sg->length/offset
values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining
entries, and sg->length/offset before building the bvec.
Discussion:
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026021302-CVE-2026-23112-6499@gregkh/T
Wiz
CVE-2026-23112 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 9.8
CVE-2026-23112 [CRITICAL] CVE-2026-23112 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-23112 :
Linux Kernel vulnerability analysis and mitigation
In the Linux kernel, the following vulnerability has been resolved:
nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec
nvmet_tcp_build_pdu_iovec() could walk past cmd->req.sg when a PDU
length or offset exceeds sg_cnt and then use bogus sg->length/offset
values, leading to _copy_to_iter() GPF/KASAN. Guard sg_idx, remaining
entries, and sg->length/offset before building the bvec.
Source : NVD
## 9.8
Score
Published February 13, 2026
Severity CRITICAL
CNA Score 9.8
Affected Technologies
Linux Kernel
CBL Mariner
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 20.9
Exploitation Probability (EPSS) 0.1
Affecte
https://git.kernel.org/stable/c/0b9981751be14b59b4473383c731c833738aebdbhttps://git.kernel.org/stable/c/1385be357e8acd09b36e026567f3a9d5c61139dehttps://git.kernel.org/stable/c/19672ae68d52ff75347ebe2420dde1b07adca09fhttps://git.kernel.org/stable/c/42afe8ed8ad2de9c19457156244ef3e1eca94b5dhttps://git.kernel.org/stable/c/52a0a98549344ca20ad81a4176d68d28e3c05a5chttps://git.kernel.org/stable/c/ab200d71553bdcf4de554a5985b05b2dd606bc57https://git.kernel.org/stable/c/dca1a6ba0da9f472ef040525fab10fd9956db59fhttps://cert-portal.siemens.com/productcert/html/ssa-253495.html
2026-02-13
Published