CVE-2025-37750
published 2025-05-01CVE-2025-37750: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in decryption with multichannel After commit f7025d861694 ("smb…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.33%
26.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix UAF in decryption with multichannel
After commit f7025d861694 ("smb: client: allocate crypto only for
primary server") and commit b0abcd65ec54 ("smb: client: fix UAF in
async decryption"), the channels started reusing AEAD TFM from primary
channel to perform synchronous decryption, but that can't done as
there could be multiple cifsd threads (one per channel) simultaneously
accessing it to perform decryption.
This fixes the following KASAN splat when running fstest generic/249
with 'vers=3.1.1,multichannel,max_channels=4,seal' against Windows
Server 2022:
BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xba/0x110
Read of size 8 at addr ffff8881046c18a0 by task cifsd/986
CPU: 3 UID: 0 PID: 986 Comm: cifsd Not tainted 6.15.0-rc1 #1
PREEMPT(voluntary)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-3.fc41
04/01/2014
Call Trace:
dump_stack_lvl+0x5d/0x80
print_report+0x156/0x528
? gf128mul_4k_lle+0xba/0x110
? __virt_addr_valid+0x145/0x300
? __phys_addr+0x46/0x90
? gf128mul_4k_lle+0xba/0x110
kasan_report+0xdf/0x1a0
? gf128mul_4k_lle+0xba/0x110
gf128mul_4k_lle+0xba/0x110
ghash_update+0x189/0x210
shash_ahash_update+0x295/0x370
? __pfx_shash_ahash_update+0x10/0x10
? __pfx_shash_ahash_update+0x10/0x10
? __pfx_extract_iter_to_sg+0x10/0x10
? ___kmalloc_large_node+0x10e/0x180
? __asan_memset+0x23/0x50
crypto_ahash_update+0x3c/0xc0
gcm_hash_assoc_remain_continue+0x93/0xc0
crypt_message+0xe09/0xec0 [cifs]
? __pfx_crypt_message+0x10/0x10 [cifs]
? _raw_spin_unlock+0x23/0x40
? __pfx_cifs_readv_from_socket+0x10/0x10 [cifs]
decrypt_raw_data+0x229/0x380 [cifs]
? __pfx_decrypt_raw_data+0x10/0x10 [cifs]
? __pfx_cifs_read_iter_from_socket+0x10/0x10 [cifs]
smb3_receive_transform+0x837/0xc80 [cifs]
? __pfx_smb3_receive_transform+0x10/0x10 [cifs]
? __pfx___might_resched+0x10/0x10
? __pfx_smb3_is_transform_hdr+0x10/0x10 [cifs]
cifs_demultiplex_thread+0x692/0x1570 [cifs]
? __pfx_cifs_dem
Affected
38 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.25-1 (forky) | linux 6.12.25-1 (forky) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 5.10.237 < 5.11 | 5.11 |
| linux | linux | >= 5.15.181 < 5.16 | 5.16 |
| linux | linux | >= 6.1.128 < 6.2 | 6.2 |
| linux | linux | >= 6.11.4 < 6.12 | 6.12 |
| linux | linux | >= 6.6.57 < 6.7 | 6.7 |
| linux | linux | >= b0abcd65ec545701b8793e12bc27dc98042b151a < aa5a1e4b882964eb79d5b5d1d1e8a1a5efbb1d15 | aa5a1e4b882964eb79d5b5d1d1e8a1a5efbb1d15 |
| linux | linux | >= b0abcd65ec545701b8793e12bc27dc98042b151a < e859b216d94668bc66330e61be201234f4413d1a | e859b216d94668bc66330e61be201234f4413d1a |
| linux | linux | >= b0abcd65ec545701b8793e12bc27dc98042b151a < 950557922c1298464749c216d8763e97faf5d0a6 | 950557922c1298464749c216d8763e97faf5d0a6 |
| linux | linux | >= b0abcd65ec545701b8793e12bc27dc98042b151a < 9502dd5c7029902f4a425bf959917a5a9e7c0e50 | 9502dd5c7029902f4a425bf959917a5a9e7c0e50 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.12.25-1 | 6.12.25-1 |
| linux | linux_kernel | >= 0 < 6.12.25-1 | 6.12.25-1 |
| linux | linux_kernel | >= 0 < 6.8.0-64.67 | 6.8.0-64.67 |
| linux | linux_kernel | >= 0 < 6.14.0-22.22 | 6.14.0-22.22 |
| linux | linux_kernel | >= 5.10.237 < 5.11 | 5.11 |
| linux | linux_kernel | >= 5.15.181 < 5.16 | 5.16 |
| linux | linux_kernel | >= 6.1.128 < 6.2 | 6.2 |
| linux | linux_kernel | >= 6.11.4 < 6.12.24 | 6.12.24 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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- x86 architecture;
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GHSA
GHSA-r3p6-jggx-m3qg: In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix UAF in decryption with multichannel
After commit f7025d861694 (
ghsa_unreviewed·2025-05-01
CVE-2025-37750 [HIGH] CWE-416 GHSA-r3p6-jggx-m3qg: In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix UAF in decryption with multichannel
After commit f7025d861694 (
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix UAF in decryption with multichannel
After commit f7025d861694 ("smb: client: allocate crypto only for
primary server") and commit b0abcd65ec54 ("smb: client: fix UAF in
async decryption"), the channels started reusing AEAD TFM from primary
channel to perform synchronous decryption, but that can't done as
there could be multiple cifsd threads (one per channel) simultaneously
accessing it to perform decryption.
This fixes the following KASAN splat when running fstest generic/249
with 'vers=3.1.1,multichannel,max_channels=4,seal' against Windows
Server 2022:
BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xba/0x110
Read of size 8 at addr ffff8881046c18a0 by task cifsd/986
CPU: 3 UID: 0 PID: 986 Comm:
OSV
CVE-2025-37750: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in decryption with multichannel After commit f7025d861694 ("s
osv·2025-05-01·CVSS 7.8
CVE-2025-37750 [HIGH] CVE-2025-37750: In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in decryption with multichannel After commit f7025d861694 ("s
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in decryption with multichannel After commit f7025d861694 ("smb: client: allocate crypto only for primary server") and commit b0abcd65ec54 ("smb: client: fix UAF in async decryption"), the channels started reusing AEAD TFM from primary channel to perform synchronous decryption, but that can't done as there could be multiple cifsd threads (one per channel) simultaneously accessing it to perform decryption. This fixes the following KASAN splat when running fstest generic/249 with 'vers=3.1.1,multichannel,max_channels=4,seal' against Windows Server 2022: BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xba/0x110 Read of size 8 at addr ffff8881046c18a0 by task cifsd/986 CPU: 3 UID: 0 PID: 986 Comm: cifs
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CVE-2025-21741 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) 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;
- PowerPC architecture;
- S390 architecture;
- x86 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;
- Input Device (Mouse) drivers;
- IOMMU subsystem;
- Multiple devices driver;
- Media drivers;
- NVIDIA Tegra memory cont
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Title: Linux kernel (Raspberry Pi Real-time) 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:
- 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;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI
Ubuntu
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Title: Linux kernel (Raspberry Pi) 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:
- 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;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem
Ubuntu
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CVE-2025-21804 [MEDIUM] Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) 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:
- 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;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 p
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CVE-2025-21804 [HIGH] 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:
- 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;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 platfor
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CVE-2024-58070 [HIGH] 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:
- 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;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 platfor
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CVE-2024-57953 [HIGH] Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) 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:
- 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;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
-
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2025-07-17·CVSS 5.9
CVE-2024-57953 [MEDIUM] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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;
- GP
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-07-17·CVSS 7.8
CVE-2024-57953 [HIGH] 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:
- 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;
- GPU drivers;
- HID subsystem;
- I3C subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- Media drivers;
- NVIDIA Tegra memory controller driver;
- Fastrpc Driver;
- Network drivers;
- Operating Performance Points (OPP) driver;
- PCI subsystem;
- x86 platfor
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-07-08
CVE-2025-23150 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:
- ARM32 architecture;
- ARM64 architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Bus devices;
- TPM device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- GP
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-06-26
CVE-2025-23131 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) 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:
- ARM32 architecture;
- ARM64 architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Bus devices;
- TPM device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsyst
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-06-24
CVE-2025-23152 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:
- ARM32 architecture;
- ARM64 architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Serial ATA and Parallel ATA drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Bus devices;
- TPM device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- GP
Microsoft
smb: client: fix UAF in decryption with multichannel
vendor_msrc·2025-05-13·CVSS 7.8
CVE-2025-37750 [HIGH] CWE-416 smb: client: fix UAF in decryption with multichannel
smb: client: fix UAF in decryption with multichannel
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Red Hat
kernel: smb: client: fix UAF in decryption with multichannel
vendor_redhat·2025-05-01·CVSS 7.8
CVE-2025-37750 [HIGH] CWE-416 kernel: smb: client: fix UAF in decryption with multichannel
kernel: smb: client: fix UAF in decryption with multichannel
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix UAF in decryption with multichannel
After commit f7025d861694 ("smb: client: allocate crypto only for
primary server") and commit b0abcd65ec54 ("smb: client: fix UAF in
async decryption"), the channels started reusing AEAD TFM from primary
channel to perform synchronous decryption, but that can't done as
there could be multiple cifsd threads (one per channel) simultaneously
accessing it to perform decryption.
This fixes the following KASAN splat when running fstest generic/249
with 'vers=3.1.1,multichannel,max_channels=4,seal' against Windows
Server 2022:
BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xba/0x110
Read of size 8 at addr ffff88
Debian
CVE-2025-37750: linux - In the Linux kernel, the following vulnerability has been resolved: smb: client...
vendor_debian·2025·CVSS 7.8
CVE-2025-37750 [HIGH] CVE-2025-37750: linux - In the Linux kernel, the following vulnerability has been resolved: smb: client...
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in decryption with multichannel After commit f7025d861694 ("smb: client: allocate crypto only for primary server") and commit b0abcd65ec54 ("smb: client: fix UAF in async decryption"), the channels started reusing AEAD TFM from primary channel to perform synchronous decryption, but that can't done as there could be multiple cifsd threads (one per channel) simultaneously accessing it to perform decryption. This fixes the following KASAN splat when running fstest generic/249 with 'vers=3.1.1,multichannel,max_channels=4,seal' against Windows Server 2022: BUG: KASAN: slab-use-after-free in gf128mul_4k_lle+0xba/0x110 Read of size 8 at addr ffff8881046c18a0 by task cifsd/986 CPU: 3 UID: 0 PID: 986 Comm: cifs
Microsoft
The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field
vendor_msrc·2021-08-10·CVSS 6.5
CVE-2021-37750 [MEDIUM] CWE-476 The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field
The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update th
No detection rules found.
No public exploits indexed.
2025-05-01
Published