CVE-2024-46742
published 2024-09-18CVE-2024-46742: In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr-deref…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
and parse_lease_state() return NULL.
Fix this by check if 'lease_ctx_info' is NULL.
Additionally, remove the redundant parentheses in
parse_durable_handle_context().
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.135-1 (bookworm) | linux 6.1.135-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.135-1 (bookworm) | linux 6.1.135-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 878f32878351104448b86ef5b85d1f8ed6f599fb | 878f32878351104448b86ef5b85d1f8ed6f599fb |
| linux | linux | >= 0626e6641f6b467447c81dd7678a69c66f7746cf < ec28c35029b7930f31117f9284874b63bea4f31b | ec28c35029b7930f31117f9284874b63bea4f31b |
| linux | linux | >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 07f384c5be1f8633b13f0a22616e227570450bc6 | 07f384c5be1f8633b13f0a22616e227570450bc6 |
| linux | linux | >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 3b692794b81f2ecad69a4adbba687f3836824ada | 3b692794b81f2ecad69a4adbba687f3836824ada |
| linux | linux | >= 0626e6641f6b467447c81dd7678a69c66f7746cf < 4e8771a3666c8f216eefd6bd2fd50121c6c437db | 4e8771a3666c8f216eefd6bd2fd50121c6c437db |
| linux | linux_kernel | < 6.6.51 | 6.6.51 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.135-1 | 6.1.135-1 |
| linux | linux_kernel | >= 0 < 6.10.11-1 | 6.10.11-1 |
| linux | linux_kernel | >= 0 < 6.10.11-1 | 6.10.11-1 |
| linux | linux_kernel | >= 0 < 5.15.0-144.157 | 5.15.0-144.157 |
| linux | linux_kernel | >= 6.7 < 6.10.10 | 6.10.10 |
| msrc | azl3_kernel_6.6.47.1-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.51.1-5_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_kernel_5.15.180.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
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- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Arm Firmware Framework for ARMv8-A(FFA);
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
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- I2C subsystem;
- I3C subsystem;
- IIO subsystem;
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- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
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Ubuntu
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- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
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Ubuntu
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- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
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- Bluetooth drivers;
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- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
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This update corrects flaws in the following subsystems:
- PA-RISC architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
- I3C subsystem;
- IIO subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- IRQ chip drivers;
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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:
- PA-RISC architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
- I3C subsystem;
- IIO subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- IRQ chip drivers;
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Red Hat
kernel: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
vendor_redhat·2024-09-18·CVSS 5.5
CVE-2024-46742 [MEDIUM] CWE-476 kernel: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
kernel: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
and parse_lease_state() return NULL.
Fix this by check if 'lease_ctx_info' is NULL.
Additionally, remove the redundant parentheses in
parse_durable_handle_context().
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
Package: kernel (Red Hat
Microsoft
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
vendor_msrc·2024-09-10·CVSS 5.5
CVE-2024-46742 [MEDIUM] CWE-476 smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
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 the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Refere
Debian
CVE-2024-46742: linux - In the Linux kernel, the following vulnerability has been resolved: smb/server:...
vendor_debian·2024·CVSS 5.5
CVE-2024-46742 [MEDIUM] CVE-2024-46742: linux - In the Linux kernel, the following vulnerability has been resolved: smb/server:...
In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) and parse_lease_state() return NULL. Fix this by check if 'lease_ctx_info' is NULL. Additionally, remove the redundant parentheses in parse_durable_handle_context().
Scope: local
bookworm: resolved (fixed in 6.1.135-1)
bullseye: resolved
forky: resolved (fixed in 6.10.11-1)
sid: resolved (fixed in 6.10.11-1)
trixie: resolved (fixed in 6.10.11-1)
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This update corrects flaws in the following subsystems:
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- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
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- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Arm Firmware Framework for ARMv8-A(FFA);
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
- I3C subsystem;
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This update corrects flaws in the following subsystems:
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- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Arm Firmware Framework for ARMv8-A(FFA);
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- I2C subsystem;
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- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Arm Firmware Framework for ARMv8-A(FFA);
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
- I3C subsystem;
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- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
- I3C subsystem;
- IIO subsystem;
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- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
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- I2C subsystem;
- I3C subsystem;
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- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
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- DMA engine subsystem;
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- GPU drivers;
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linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvi
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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:
- PA-RISC architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
-
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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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- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
- I3C subsystem;
- IIO subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- IRQ chip drivers;
- MCB driver;
- Multiple devices driver;
- Media drivers;
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osv·2025-07-18
linux-aws-fips, linux-fips, linux-gcp-fips 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:
- PA-RISC architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Bluetooth drivers;
- Bus devices;
- CPU frequency scaling framework;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HID subsystem;
- HSI subsystem;
- I2C subsystem;
- I3C subsystem;
- IIO subsystem;
- InfiniBand drivers;
- IOMMU subsystem;
- IRQ chip drivers;
- MCB driver;
- Multiple devices driver;
- Media drivers;
- Multifunction
OSV
linux-intel-iotg-5.15 vulnerabilities
osv·2025-07-18·CVSS 8.8
CVE-2024-8805 [HIGH] linux-intel-iotg-5.15 vulnerabilities
linux-intel-iotg-5.15 vulnerabilities
Michael Randrianantenaina discovered that the Bluetooth driver in the Linux
Kernel contained an improper access control vulnerability. A nearby
attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)
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:
- PA-RISC architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Crypt
GHSA
GHSA-c922-2344-3839: In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
null-p
ghsa_unreviewed·2024-09-18
CVE-2024-46742 [MEDIUM] CWE-476 GHSA-c922-2344-3839: In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
null-p
In the Linux kernel, the following vulnerability has been resolved:
smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
and parse_lease_state() return NULL.
Fix this by check if 'lease_ctx_info' is NULL.
Additionally, remove the redundant parentheses in
parse_durable_handle_context().
OSV
CVE-2024-46742: In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr
osv·2024-09-18·CVSS 5.5
CVE-2024-46742 [MEDIUM] CVE-2024-46742: In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr
In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) and parse_lease_state() return NULL. Fix this by check if 'lease_ctx_info' is NULL. Additionally, remove the redundant parentheses in parse_durable_handle_context().
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824adahttps://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437dbhttps://git.kernel.org/stable/c/878f32878351104448b86ef5b85d1f8ed6f599fbhttps://git.kernel.org/stable/c/ec28c35029b7930f31117f9284874b63bea4f31bhttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
2024-09-18
Published