CVE-2021-47149
published 2024-03-25CVE-2021-47149: In the Linux kernel, the following vulnerability has been resolved: net: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), if ioremap fails there…
PriorityP417medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: fujitsu: fix potential null-ptr-deref
In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer
deref. To fix this, check the return value of ioremap and return -1
to the caller in case of failure.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.6-1 (bookworm) | linux 5.14.6-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b92170e209f7746ed72eaac98f2c2f4b9af734e6 | b92170e209f7746ed72eaac98f2c2f4b9af734e6 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6dbf1101594f7c76990b63c35b5a40205a914b6b | 6dbf1101594f7c76990b63c35b5a40205a914b6b |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c4f1c23edbe921ab2ecd6140d700e756cd44c5f7 | c4f1c23edbe921ab2ecd6140d700e756cd44c5f7 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7883d3895d0fbb0ba9bff0f8665f99974b45210f | 7883d3895d0fbb0ba9bff0f8665f99974b45210f |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 22049c3d40f08facd1867548716a484dad6b3251 | 22049c3d40f08facd1867548716a484dad6b3251 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 71723a796ab7881f491d663c6cd94b29be5fba50 | 71723a796ab7881f491d663c6cd94b29be5fba50 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f14bf57a08779a5dee9936f63ada0149ea89c5e6 | f14bf57a08779a5dee9936f63ada0149ea89c5e6 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 52202be1cd996cde6e8969a128dc27ee45a7cb5e | 52202be1cd996cde6e8969a128dc27ee45a7cb5e |
| linux | linux_kernel | < 4.4.271 | 4.4.271 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 4.4.0-273.307 | 4.4.0-273.307 |
| linux | linux_kernel | >= 4.10 < 4.14.235 | 4.14.235 |
| linux | linux_kernel | >= 4.15 < 4.19.193 | 4.19.193 |
| linux | linux_kernel | >= 4.20 < 5.4.124 | 5.4.124 |
| linux | linux_kernel | >= 4.5 < 4.9.271 | 4.9.271 |
| linux | linux_kernel | >= 5.11 < 5.12.9 | 5.12.9 |
| linux | linux_kernel | >= 5.5 < 5.10.42 | 5.10.42 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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OSV
linux-fips vulnerabilities
osv·2025-11-10·CVSS 5.5
CVE-2025-40300 [MEDIUM] linux-fips vulnerabilities
linux-fips vulnerabilities
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Media drivers;
- Network drivers;
- Ethernet team driver;
- TTY drivers;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Network fi
OSV
linux-aws vulnerabilities
osv·2025-10-21·CVSS 5.5
CVE-2025-38618 [MEDIUM] linux-aws vulnerabilities
linux-aws vulnerabilities
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:
- Virtio block driver;
- Media drivers;
- Network drivers;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Packet sockets;
- VMware vSockets driver;
(CVE-2025-38618, CVE-2024-35849, CVE-2025-37785, CVE-2024-49924,
CVE-2025-38617, CVE-2024-27078, CVE-2021-47149, CVE-2021-47319,
CVE-2025-21796, CVE-2021-47589)
OSV
linux, linux-kvm vulnerabilities
osv·2025-10-02·CVSS 5.5
CVE-2025-38618 [MEDIUM] linux, linux-kvm vulnerabilities
linux, linux-kvm vulnerabilities
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:
- Virtio block driver;
- Media drivers;
- Network drivers;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Packet sockets;
- VMware vSockets driver;
(CVE-2025-38618, CVE-2024-35849, CVE-2025-37785, CVE-2024-49924,
CVE-2025-38617, CVE-2024-27078, CVE-2021-47149, CVE-2021-47319,
CVE-2025-21796, CVE-2021-47589)
OSV
linux-aws, linux-lts-xenial vulnerabilities
osv·2025-10-02·CVSS 5.5
CVE-2024-49924 [MEDIUM] linux-aws, linux-lts-xenial vulnerabilities
linux-aws, linux-lts-xenial vulnerabilities
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:
- Virtio block driver;
- Media drivers;
- Network drivers;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Packet sockets;
- VMware vSockets driver;
(CVE-2024-49924, CVE-2021-47149, CVE-2025-21796, CVE-2025-38617,
CVE-2021-47589, CVE-2021-47319, CVE-2024-27078, CVE-2025-38618,
CVE-2025-37785, CVE-2024-35849)
OSV
CVE-2021-47149: In the Linux kernel, the following vulnerability has been resolved: net: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), if ioremap fai
osv·2024-03-25·CVSS 5.5
CVE-2021-47149 [MEDIUM] CVE-2021-47149: In the Linux kernel, the following vulnerability has been resolved: net: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), if ioremap fai
In the Linux kernel, the following vulnerability has been resolved: net: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer deref. To fix this, check the return value of ioremap and return -1 to the caller in case of failure.
GHSA
GHSA-mx9m-w3w5-w7q4: In the Linux kernel, the following vulnerability has been resolved:
net: fujitsu: fix potential null-ptr-deref
In fmvj18x_get_hwinfo(), if ioremap f
ghsa_unreviewed·2024-03-25
CVE-2021-47149 [MEDIUM] CWE-476 GHSA-mx9m-w3w5-w7q4: In the Linux kernel, the following vulnerability has been resolved:
net: fujitsu: fix potential null-ptr-deref
In fmvj18x_get_hwinfo(), if ioremap f
In the Linux kernel, the following vulnerability has been resolved:
net: fujitsu: fix potential null-ptr-deref
In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer
deref. To fix this, check the return value of ioremap and return -1
to the caller in case of failure.
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2025-11-10·CVSS 5.5
CVE-2025-38617 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Media drivers;
- Network drivers;
- Ethernet team driver;
- TTY d
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-10-21·CVSS 5.5
CVE-2021-47149 [MEDIUM] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) 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:
- Virtio block driver;
- Media drivers;
- Network drivers;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Packet sockets;
- VMware vSockets driver;
(CVE-2025-38618, CVE-2024-35849, CVE-2025-37785, CVE-2024-49924,
CVE-2025-38617, CVE-2024-27078, CVE-2021-47149, CVE-2021-47319,
CVE-2025-21796, CVE-2021-47589)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoi
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-10-02·CVSS 5.5
CVE-2025-38617 [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:
- Virtio block driver;
- Media drivers;
- Network drivers;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Packet sockets;
- VMware vSockets driver;
(CVE-2025-38618, CVE-2024-35849, CVE-2025-37785, CVE-2024-49924,
CVE-2025-38617, CVE-2024-27078, CVE-2021-47149, CVE-2021-47319,
CVE-2025-21796, CVE-2021-47589)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-10-02·CVSS 5.5
CVE-2025-38618 [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:
- Virtio block driver;
- Media drivers;
- Network drivers;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Network file system (NFS) server daemon;
- Packet sockets;
- VMware vSockets driver;
(CVE-2024-49924, CVE-2021-47149, CVE-2025-21796, CVE-2025-38617,
CVE-2021-47589, CVE-2021-47319, CVE-2024-27078, CVE-2025-38618,
CVE-2025-37785, CVE-2024-35849)
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable
Red Hat
kernel: net: fujitsu: fix potential null-ptr-deref
vendor_redhat·2024-03-25·CVSS 5.5
CVE-2021-47149 [MEDIUM] CWE-476 kernel: net: fujitsu: fix potential null-ptr-deref
kernel: net: fujitsu: fix potential null-ptr-deref
In the Linux kernel, the following vulnerability has been resolved:
net: fujitsu: fix potential null-ptr-deref
In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer
deref. To fix this, check the return value of ioremap and return -1
to the caller in case of failure.
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel-rt (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
Package: kernel (Red Hat Enterprise Linux 9) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 9) - Not affected
Debian
CVE-2021-47149: linux - In the Linux kernel, the following vulnerability has been resolved: net: fujits...
vendor_debian·2021·CVSS 5.5
CVE-2021-47149 [MEDIUM] CVE-2021-47149: linux - In the Linux kernel, the following vulnerability has been resolved: net: fujits...
In the Linux kernel, the following vulnerability has been resolved: net: fujitsu: fix potential null-ptr-deref In fmvj18x_get_hwinfo(), if ioremap fails there will be NULL pointer deref. To fix this, check the return value of ioremap and return -1 to the caller in case of failure.
Scope: local
bookworm: resolved (fixed in 5.14.6-1)
bullseye: resolved (fixed in 5.10.46-1)
forky: resolved (fixed in 5.14.6-1)
sid: resolved (fixed in 5.14.6-1)
trixie: resolved (fixed in 5.14.6-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/22049c3d40f08facd1867548716a484dad6b3251https://git.kernel.org/stable/c/52202be1cd996cde6e8969a128dc27ee45a7cb5ehttps://git.kernel.org/stable/c/6dbf1101594f7c76990b63c35b5a40205a914b6bhttps://git.kernel.org/stable/c/71723a796ab7881f491d663c6cd94b29be5fba50https://git.kernel.org/stable/c/7883d3895d0fbb0ba9bff0f8665f99974b45210fhttps://git.kernel.org/stable/c/b92170e209f7746ed72eaac98f2c2f4b9af734e6https://git.kernel.org/stable/c/c4f1c23edbe921ab2ecd6140d700e756cd44c5f7https://git.kernel.org/stable/c/f14bf57a08779a5dee9936f63ada0149ea89c5e6https://git.kernel.org/stable/c/22049c3d40f08facd1867548716a484dad6b3251https://git.kernel.org/stable/c/52202be1cd996cde6e8969a128dc27ee45a7cb5ehttps://git.kernel.org/stable/c/6dbf1101594f7c76990b63c35b5a40205a914b6bhttps://git.kernel.org/stable/c/71723a796ab7881f491d663c6cd94b29be5fba50https://git.kernel.org/stable/c/7883d3895d0fbb0ba9bff0f8665f99974b45210fhttps://git.kernel.org/stable/c/b92170e209f7746ed72eaac98f2c2f4b9af734e6https://git.kernel.org/stable/c/c4f1c23edbe921ab2ecd6140d700e756cd44c5f7https://git.kernel.org/stable/c/f14bf57a08779a5dee9936f63ada0149ea89c5e6
2024-03-25
Published