CVE-2024-56755
published 2024-12-29CVE-2024-56755: In the Linux kernel, the following vulnerability has been resolved: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING In fscache_create_volume()…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
10.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
In fscache_create_volume(), there is a missing memory barrier between the
bit-clearing operation and the wake-up operation. This may cause a
situation where, after a wake-up, the bit-clearing operation hasn't been
detected yet, leading to an indefinite wait. The triggering process is as
follows:
[cookie1] [cookie2] [volume_work]
fscache_perform_lookup
fscache_create_volume
fscache_perform_lookup
fscache_create_volume
fscache_create_volume_work
cachefiles_acquire_volume
clear_and_wake_up_bit
test_and_set_bit
test_and_set_bit
goto maybe_wait
goto no_wait
In the above process, cookie1 and cookie2 has the same volume. When cookie1
enters the -no_wait- process, it will clear the bit and wake up the waiting
process. If a barrier is missing, it may cause cookie2 to remain in the
-wait- process indefinitely.
In commit 3288666c7256 ("fscache: Use clear_and_wake_up_bit() in
fscache_create_volume_work()"), barriers were added to similar operations
in fscache_create_volume_work(), but fscache_create_volume() was missed.
By combining the clear and wake operations into clear_and_wake_up_bit() to
fix this issue.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.123-1 (bookworm) | linux 6.1.123-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.123-1 (bookworm) | linux 6.1.123-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 < ddab02607eed9e415dc62fde421d4329e5345315 | ddab02607eed9e415dc62fde421d4329e5345315 |
| linux | linux | >= bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 < 539fabba965e119b98066fc6ba5257b5eaf4eda2 | 539fabba965e119b98066fc6ba5257b5eaf4eda2 |
| linux | linux | >= bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 < 8beb682cc9a0798a280bbb95e3e41617237090b2 | 8beb682cc9a0798a280bbb95e3e41617237090b2 |
| linux | linux | >= bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 < 8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6 | 8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6 |
| linux | linux | >= bfa22da3ed652aa15acd4246fa13a0de6dbe4a59 < 22f9400a6f3560629478e0a64247b8fcc811a24d | 22f9400a6f3560629478e0a64247b8fcc811a24d |
| linux | linux_kernel | >= 0 < 6.1.123-1 | 6.1.123-1 |
| linux | linux_kernel | >= 0 < 6.12.3-1 | 6.12.3-1 |
| linux | linux_kernel | >= 0 < 6.12.3-1 | 6.12.3-1 |
| linux | linux_kernel | >= 0 < 6.8.0-58.60 | 6.8.0-58.60 |
| linux | linux_kernel | >= 0 < 6.11.0-18.18 | 6.11.0-18.18 |
| linux | linux_kernel | >= 5.17 < 6.1.120 | 6.1.120 |
| linux | linux_kernel | >= 6.12 < 6.12.2 | 6.12.2 |
| linux | linux_kernel | >= 6.2 < 6.6.64 | 6.6.64 |
| linux | linux_kernel | >= 6.7 < 6.11.11 | 6.11.11 |
| msrc | azl3_kernel_6.6.57.1-7_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.64.2-1_on_azure_linux_3.0 | — | — |
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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CVE-2024-56755: In the Linux kernel, the following vulnerability has been resolved: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING In fscache_create_
osv·2024-12-29·CVSS 5.5
CVE-2024-56755 [MEDIUM] CVE-2024-56755: In the Linux kernel, the following vulnerability has been resolved: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING In fscache_create_
In the Linux kernel, the following vulnerability has been resolved: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING In fscache_create_volume(), there is a missing memory barrier between the bit-clearing operation and the wake-up operation. This may cause a situation where, after a wake-up, the bit-clearing operation hasn't been detected yet, leading to an indefinite wait. The triggering process is as follows: [cookie1] [cookie2] [volume_work] fscache_perform_lookup fscache_create_volume fscache_perform_lookup fscache_create_volume fscache_create_volume_work cachefiles_acquire_volume clear_and_wake_up_bit test_and_set_bit test_and_set_bit goto maybe_wait goto no_wait In the above process, cookie1 and cookie2 has the same volume. When cookie1 enters the -no_wait- process, it
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netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
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CVE-2024-56755 [MEDIUM] CWE-401 GHSA-2cxg-hjm3-xmvr: In the Linux kernel, the following vulnerability has been resolved:
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
In fscache_creat
In the Linux kernel, the following vulnerability has been resolved:
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
In fscache_create_volume(), there is a missing memory barrier between the
bit-clearing operation and the wake-up operation. This may cause a
situation where, after a wake-up, the bit-clearing operation hasn't been
detected yet, leading to an indefinite wait. The triggering process is as
follows:
[cookie1] [cookie2] [volume_work]
fscache_perform_lookup
fscache_create_volume
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goto maybe_wait
goto no_wait
In the above process, cookie1 and cookie2 has the same volume. When cookie1
enters the -no_wait- process,
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- PowerPC architecture;
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- S390 architecture;
- SuperH RISC architecture;
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Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
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- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
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- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
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- TPM device driver;
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Compressed RAM block device driver;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardwa
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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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Compressed RAM block device driver;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto de
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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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Ublk userspace block driver;
- Compressed RAM block device driver;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling
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vendor_ubuntu·2025-04-23
CVE-2024-53047 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Compressed RAM block device driver;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto de
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vendor_ubuntu·2025-04-23
CVE-2024-53047 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- RAM backed block device driver;
- Compressed RAM block device driver;
- TPM device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto de
Ubuntu
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CVE-2024-47738 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)
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;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
-
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-02-19
CVE-2024-47738 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;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- ATA over ethernet (AOE) driver;
- RAM backed block device driver;
- Network block device driver;
- Ublk userspace block driver;
- Compressed RAM block device driver;
- Bluetooth drivers;
- TPM device driver;
- Clock fr
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-02-19
CVE-2024-49996 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)
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;
- S390 architecture;
- SuperH RISC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
-
Red Hat
kernel: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
vendor_redhat·2024-12-29·CVSS 5.5
CVE-2024-56755 [MEDIUM] CWE-401 kernel: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
kernel: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
In the Linux kernel, the following vulnerability has been resolved:
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
In fscache_create_volume(), there is a missing memory barrier between the
bit-clearing operation and the wake-up operation. This may cause a
situation where, after a wake-up, the bit-clearing operation hasn't been
detected yet, leading to an indefinite wait. The triggering process is as
follows:
[cookie1] [cookie2] [volume_work]
fscache_perform_lookup
fscache_create_volume
fscache_perform_lookup
fscache_create_volume
fscache_create_volume_work
cachefiles_acquire_volume
clear_and_wake_up_bit
test_and_set_bit
test_and_set_bit
goto maybe_wait
goto no_wait
In the above process, cookie1 and co
Microsoft
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
vendor_msrc·2024-12-10·CVSS 5.5
CVE-2024-56755 [MEDIUM] netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING
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
Reference: https
Debian
CVE-2024-56755: linux - In the Linux kernel, the following vulnerability has been resolved: netfs/fscac...
vendor_debian·2024·CVSS 5.5
CVE-2024-56755 [MEDIUM] CVE-2024-56755: linux - In the Linux kernel, the following vulnerability has been resolved: netfs/fscac...
In the Linux kernel, the following vulnerability has been resolved: netfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING In fscache_create_volume(), there is a missing memory barrier between the bit-clearing operation and the wake-up operation. This may cause a situation where, after a wake-up, the bit-clearing operation hasn't been detected yet, leading to an indefinite wait. The triggering process is as follows: [cookie1] [cookie2] [volume_work] fscache_perform_lookup fscache_create_volume fscache_perform_lookup fscache_create_volume fscache_create_volume_work cachefiles_acquire_volume clear_and_wake_up_bit test_and_set_bit test_and_set_bit goto maybe_wait goto no_wait In the above process, cookie1 and cookie2 has the same volume. When cookie1 enters the -no_wait- process, it
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24dhttps://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6https://git.kernel.org/stable/c/ddab02607eed9e415dc62fde421d4329e5345315https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
2024-12-29
Published