CVE-2025-21670
published 2025-01-31CVE-2025-21670: In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions can only be…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
9.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
vsock/bpf: return early if transport is not assigned
Some of the core functions can only be called if the transport
has been assigned.
As Michal reported, a socket might have the transport at NULL,
for example after a failed connect(), causing the following trace:
BUG: kernel NULL pointer dereference, address: 00000000000000a0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 12faf8067 P4D 12faf8067 PUD 113670067 PMD 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 15 UID: 0 PID: 1198 Comm: a.out Not tainted 6.13.0-rc2+
RIP: 0010:vsock_connectible_has_data+0x1f/0x40
Call Trace:
vsock_bpf_recvmsg+0xca/0x5e0
sock_recvmsg+0xb9/0xc0
__sys_recvfrom+0xb3/0x130
__x64_sys_recvfrom+0x20/0x30
do_syscall_64+0x93/0x180
entry_SYSCALL_64_after_hwframe+0x76/0x7e
So we need to check the `vsk->transport` in vsock_bpf_recvmsg(),
especially for connected sockets (stream/seqpacket) as we already
do in __vsock_connectible_recvmsg().
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.11-1 (forky) | linux 6.12.11-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 634f1a7110b439c65fd8a809171c1d2d28bcea6f < 58e586c30d0b6f5dc0174a41026f2b0a48c9aab6 | 58e586c30d0b6f5dc0174a41026f2b0a48c9aab6 |
| linux | linux | >= 634f1a7110b439c65fd8a809171c1d2d28bcea6f < 6771e1279dadf1d92a72e1465134257d9e6f2459 | 6771e1279dadf1d92a72e1465134257d9e6f2459 |
| linux | linux | >= 634f1a7110b439c65fd8a809171c1d2d28bcea6f < f6abafcd32f9cfc4b1a2f820ecea70773e26d423 | f6abafcd32f9cfc4b1a2f820ecea70773e26d423 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.12.11-1 | 6.12.11-1 |
| linux | linux_kernel | >= 0 < 6.12.11-1 | 6.12.11-1 |
| linux | linux_kernel | >= 0 < 6.8.0-62.65 | 6.8.0-62.65 |
| linux | linux_kernel | >= 6.4 < 6.6.74 | 6.6.74 |
| linux | linux_kernel | >= 6.7 < 6.12.11 | 6.12.11 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.9MEDIUM
vendor_ubuntu5.9MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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- SCSI subsystem;
- USB Serial drivers;
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- GPIO subsystem;
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- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
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- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
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- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- File system notification infrastructure;
- Overlay file system;
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Ubuntu
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Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
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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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
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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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
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It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
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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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB networ
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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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- Ethtool driver;
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- Open vSwitch;
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Red Hat
kernel: vsock/bpf: return early if transport is not assigned
vendor_redhat·2025-01-31·CVSS 5.5
CVE-2025-21670 [MEDIUM] CWE-476 kernel: vsock/bpf: return early if transport is not assigned
kernel: vsock/bpf: return early if transport is not assigned
In the Linux kernel, the following vulnerability has been resolved:
vsock/bpf: return early if transport is not assigned
Some of the core functions can only be called if the transport
has been assigned.
As Michal reported, a socket might have the transport at NULL,
for example after a failed connect(), causing the following trace:
BUG: kernel NULL pointer dereference, address: 00000000000000a0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 12faf8067 P4D 12faf8067 PUD 113670067 PMD 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 15 UID: 0 PID: 1198 Comm: a.out Not tainted 6.13.0-rc2+
RIP: 0010:vsock_connectible_has_data+0x1f/0x40
Call Trace:
vsock_bpf_recvmsg+0xca/0x5e0
sock_recvmsg+0xb9/
Debian
CVE-2025-21670: linux - In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: ...
vendor_debian·2025·CVSS 5.5
CVE-2025-21670 [MEDIUM] CVE-2025-21670: linux - In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: ...
In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions can only be called if the transport has been assigned. As Michal reported, a socket might have the transport at NULL, for example after a failed connect(), causing the following trace: BUG: kernel NULL pointer dereference, address: 00000000000000a0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 12faf8067 P4D 12faf8067 PUD 113670067 PMD 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 15 UID: 0 PID: 1198 Comm: a.out Not tainted 6.13.0-rc2+ RIP: 0010:vsock_connectible_has_data+0x1f/0x40 Call Trace: vsock_bpf_recvmsg+0xca/0x5e0 sock_recvmsg+0xb9/0xc0 __sys_recvfrom+0xb3/0x130 __x64_sys_recvfrom+0x20/0x30 do
OSV
linux-hwe-6.8 vulnerabilities
osv·2025-07-17·CVSS 5.9
CVE-2025-2312 [MEDIUM] linux-hwe-6.8 vulnerabilities
linux-hwe-6.8 vulnerabilities
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- PowerPC architecture;
- S390 architecture;
- Block layer subsystem;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Network block device driver;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- FireWire subsystem;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU sub
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osv·2025-06-30·CVSS 5.5
CVE-2025-2312 [MEDIUM] linux-gcp, linux-gcp-6.8 vulnerabilities
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It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- File system notification infrastructure;
- Overlay file system;
- Proc file system;
- SMB net
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CVE-2025-2312 [MEDIUM] linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities
linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- File system notification infrastructure;
- Overlay file system;
- Proc fil
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It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- File system notification infrastructure;
- Overlay file system;
- Proc file system;
- SMB network
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linux-azure-nvidia vulnerabilities
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[MEDIUM] linux-azure-nvidia vulnerabilities
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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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- File system notification infrastructure;
- Overlay file system;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- DCCP (Datagram Congestion Control Protocol);
- IPv6 networking;
- IEEE 802.15.4 subsystem;
- Open vSwitch;
- Network traff
OSV
linux, linux-aws, linux-aws-6.8, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oem-6.8 vulnerabilities
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It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS f
OSV
linux-azure, linux-azure-6.8 vulnerabilities
osv·2025-06-24·CVSS 5.5
[MEDIUM] linux-azure, linux-azure-6.8 vulnerabilities
linux-azure, linux-azure-6.8 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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- File system notification infrastructure;
- Overlay file system;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- DCCP (Datagram Congestion Control Protocol);
- IPv6 networking;
- IEEE 802.15.4 subsystem;
- Open vSwitch;
- Net
OSV
linux-realtime vulnerabilities
osv·2025-06-24·CVSS 5.5
CVE-2025-2312 [MEDIUM] linux-realtime vulnerabilities
linux-realtime vulnerabilities
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- InfiniBand drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- File system notification infrastructure;
- Overlay file system;
- Proc file system;
- SMB network file
OSV
linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
osv·2025-04-23·CVSS 5.5
[MEDIUM] linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime 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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- Ethtool driver;
- IEEE 802.15.4 subsystem;
- Open vSwitch
OSV
linux-azure, linux-azure-6.11 vulnerabilities
osv·2025-04-23·CVSS 5.5
CVE-2025-2312 [MEDIUM] linux-azure, linux-azure-6.11 vulnerabilities
linux-azure, linux-azure-6.11 vulnerabilities
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control i
OSV
CVE-2025-21670: In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions ca
osv·2025-01-31·CVSS 5.5
CVE-2025-21670 [MEDIUM] CVE-2025-21670: In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions ca
In the Linux kernel, the following vulnerability has been resolved: vsock/bpf: return early if transport is not assigned Some of the core functions can only be called if the transport has been assigned. As Michal reported, a socket might have the transport at NULL, for example after a failed connect(), causing the following trace: BUG: kernel NULL pointer dereference, address: 00000000000000a0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 12faf8067 P4D 12faf8067 PUD 113670067 PMD 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 15 UID: 0 PID: 1198 Comm: a.out Not tainted 6.13.0-rc2+ RIP: 0010:vsock_connectible_has_data+0x1f/0x40 Call Trace: vsock_bpf_recvmsg+0xca/0x5e0 sock_recvmsg+0xb9/0xc0 __sys_recvfrom+0xb3/0x130 __x64_sys_recvfrom+0x20/0x30 do
GHSA
GHSA-9w9r-vq29-w437: In the Linux kernel, the following vulnerability has been resolved:
vsock/bpf: return early if transport is not assigned
Some of the core functions
ghsa_unreviewed·2025-01-31
CVE-2025-21670 [MEDIUM] CWE-476 GHSA-9w9r-vq29-w437: In the Linux kernel, the following vulnerability has been resolved:
vsock/bpf: return early if transport is not assigned
Some of the core functions
In the Linux kernel, the following vulnerability has been resolved:
vsock/bpf: return early if transport is not assigned
Some of the core functions can only be called if the transport
has been assigned.
As Michal reported, a socket might have the transport at NULL,
for example after a failed connect(), causing the following trace:
BUG: kernel NULL pointer dereference, address: 00000000000000a0
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 12faf8067 P4D 12faf8067 PUD 113670067 PMD 0
Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 15 UID: 0 PID: 1198 Comm: a.out Not tainted 6.13.0-rc2+
RIP: 0010:vsock_connectible_has_data+0x1f/0x40
Call Trace:
vsock_bpf_recvmsg+0xca/0x5e0
sock_recvmsg+0xb9/0xc0
__sys_recvfrom+0xb3/0x130
__x64_sys_recvfrom+0x20/0x3
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-01-31
Published