CVE-2024-47736
published 2024-10-21CVE-2024-47736: In the Linux kernel, the following vulnerability has been resolved: erofs: handle overlapped pclusters out of crafted images properly syzbot reported a task…
PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.18%
8.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
erofs: handle overlapped pclusters out of crafted images properly
syzbot reported a task hang issue due to a deadlock case where it is
waiting for the folio lock of a cached folio that will be used for
cache I/Os.
After looking into the crafted fuzzed image, I found it's formed with
several overlapped big pclusters as below:
Ext: logical offset | length : physical offset | length
0: 0.. 16384 | 16384 : 151552.. 167936 | 16384
1: 16384.. 32768 | 16384 : 155648.. 172032 | 16384
2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384
...
Here, extent 0/1 are physically overlapped although it's entirely
_impossible_ for normal filesystem images generated by mkfs.
First, managed folios containing compressed data will be marked as
up-to-date and then unlocked immediately (unlike in-place folios) when
compressed I/Os are complete. If physical blocks are not submitted in
the incremental order, there should be separate BIOs to avoid dependency
issues. However, the current code mis-arranges z_erofs_fill_bio_vec()
and BIO submission which causes unexpected BIO waits.
Second, managed folios will be connected to their own pclusters for
efficient inter-queries. However, this is somewhat hard to implement
easily if overlapped big pclusters exist. Again, these only appear in
fuzzed images so let's simply fall back to temporary short-lived pages
for correctness.
Additionally, it justifies that referenced managed folios cannot be
truncated for now and reverts part of commit 2080ca1ed3e4 ("erofs: tidy
up `struct z_erofs_bvec`") for simplicity although it shouldn't be any
difference.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.11.2-1 (forky) | linux 6.11.2-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 8e6c8fa9f2e95c88a642521a5da19a8e31748846 < c1172e65aad4b115392ea4c6e61e56e5b9b69df4 | c1172e65aad4b115392ea4c6e61e56e5b9b69df4 |
| linux | linux | >= 8e6c8fa9f2e95c88a642521a5da19a8e31748846 < 1bf7e414cac303c9aec1be67872e19be8b64980c | 1bf7e414cac303c9aec1be67872e19be8b64980c |
| linux | linux | >= 8e6c8fa9f2e95c88a642521a5da19a8e31748846 < b9b30af0e86ffb485301ecd83b9129c9dfb7ebf8 | b9b30af0e86ffb485301ecd83b9129c9dfb7ebf8 |
| linux | linux | >= 8e6c8fa9f2e95c88a642521a5da19a8e31748846 < 9cfa199bcbbbba31cbf97b2786f44f4464f3f29a | 9cfa199bcbbbba31cbf97b2786f44f4464f3f29a |
| linux | linux | >= 8e6c8fa9f2e95c88a642521a5da19a8e31748846 < 9e2f9d34dd12e6e5b244ec488bcebd0c2d566c50 | 9e2f9d34dd12e6e5b244ec488bcebd0c2d566c50 |
| linux | linux_kernel | >= 0 < 6.11.2-1 | 6.11.2-1 |
| linux | linux_kernel | >= 0 < 6.11.2-1 | 6.11.2-1 |
| linux | linux_kernel | >= 0 < 6.8.0-60.63 | 6.8.0-60.63 |
| linux | linux_kernel | >= 0 < 6.11.0-18.18 | 6.11.0-18.18 |
| linux | linux_kernel | >= 5.13 < 6.10.13 | 6.10.13 |
| linux | linux_kernel | >= 6.11 < 6.11.2 | 6.11.2 |
| msrc | azl3_kernel_6.6.76.1-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.92.2-1_on_azure_linux_3.0 | — | — |
| msrc | cbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.202.1-1_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
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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CVE-2024-47736: In the Linux kernel, the following vulnerability has been resolved: erofs: handle overlapped pclusters out of crafted images properly syzbot reported
osv·2024-10-21·CVSS 5.5
CVE-2024-47736 [MEDIUM] CVE-2024-47736: In the Linux kernel, the following vulnerability has been resolved: erofs: handle overlapped pclusters out of crafted images properly syzbot reported
In the Linux kernel, the following vulnerability has been resolved: erofs: handle overlapped pclusters out of crafted images properly syzbot reported a task hang issue due to a deadlock case where it is waiting for the folio lock of a cached folio that will be used for cache I/Os. After looking into the crafted fuzzed image, I found it's formed with several overlapped big pclusters as below: Ext: logical offset | length : physical offset | length 0: 0.. 16384 | 16384 : 151552.. 167936 | 16384 1: 16384.. 32768 | 16384 : 155648.. 172032 | 16384 2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384 ... Here, extent 0/1 are physically overlapped although it's entirely _impossible_ for normal filesystem images generated by mkfs. First, managed folios containing compressed data will be marked
GHSA
GHSA-fh88-v2mj-cp79: In the Linux kernel, the following vulnerability has been resolved:
erofs: handle overlapped pclusters out of crafted images properly
syzbot reporte
ghsa_unreviewed·2024-10-21
CVE-2024-47736 [MEDIUM] CWE-667 GHSA-fh88-v2mj-cp79: In the Linux kernel, the following vulnerability has been resolved:
erofs: handle overlapped pclusters out of crafted images properly
syzbot reporte
In the Linux kernel, the following vulnerability has been resolved:
erofs: handle overlapped pclusters out of crafted images properly
syzbot reported a task hang issue due to a deadlock case where it is
waiting for the folio lock of a cached folio that will be used for
cache I/Os.
After looking into the crafted fuzzed image, I found it's formed with
several overlapped big pclusters as below:
Ext: logical offset | length : physical offset | length
0: 0.. 16384 | 16384 : 151552.. 167936 | 16384
1: 16384.. 32768 | 16384 : 155648.. 172032 | 16384
2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384
...
Here, extent 0/1 are physically overlapped although it's entirely
_impossible_ for normal filesystem images generated by mkfs.
First, managed folios containing compressed data will be
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This update corrects flaws in the following subsystems:
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- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
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- IIO ADC drivers;
- IIO subsystem;
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This update corrects flaws in the following subsystems:
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- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
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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;
- Ublk userspace block driver;
- Virtio block driver;
- Compressed RAM block device driver;
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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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
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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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
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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:
- 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;
- Virtio block driver;
- Compressed RAM block device driver;
- Bluetooth drivers;
- TPM device driver;
- Clock framework and driver
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vendor_ubuntu·2025-05-20·CVSS 7.8
CVE-2024-57793 [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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
-
Ubuntu
Linux kernel (GKE) vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 7.8
CVE-2024-57793 [HIGH] Linux kernel (GKE) vulnerabilities
Title: Linux kernel (GKE) 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsyst
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 5.5
CVE-2024-57793 [MEDIUM] Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) 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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subs
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 7.1
CVE-2025-21639 [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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI s
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-16·CVSS 7.1
CVE-2024-57793 [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:
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Ublk userspace block driver;
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- Hardware monitoring drivers;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- Multiple devices driver;
- Media drivers;
- Microchip PCI driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- PCI subsystem;
-
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-02-28
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: erofs: handle overlapped pclusters out of crafted images properly
vendor_redhat·2024-10-21·CVSS 5.5
CVE-2024-47736 [MEDIUM] CWE-404 kernel: erofs: handle overlapped pclusters out of crafted images properly
kernel: erofs: handle overlapped pclusters out of crafted images properly
In the Linux kernel, the following vulnerability has been resolved:
erofs: handle overlapped pclusters out of crafted images properly
syzbot reported a task hang issue due to a deadlock case where it is
waiting for the folio lock of a cached folio that will be used for
cache I/Os.
After looking into the crafted fuzzed image, I found it's formed with
several overlapped big pclusters as below:
Ext: logical offset | length : physical offset | length
0: 0.. 16384 | 16384 : 151552.. 167936 | 16384
1: 16384.. 32768 | 16384 : 155648.. 172032 | 16384
2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384
...
Here, extent 0/1 are physically overlapped although it's entirely
_impossible_ for normal filesystem images generat
Microsoft
erofs: handle overlapped pclusters out of crafted images properly
vendor_msrc·2024-10-08·CVSS 5.5
CVE-2024-47736 [MEDIUM] CWE-667 erofs: handle overlapped pclusters out of crafted images properly
erofs: handle overlapped pclusters out of crafted images properly
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: htt
Debian
CVE-2024-47736: linux - In the Linux kernel, the following vulnerability has been resolved: erofs: hand...
vendor_debian·2024·CVSS 5.5
CVE-2024-47736 [MEDIUM] CVE-2024-47736: linux - In the Linux kernel, the following vulnerability has been resolved: erofs: hand...
In the Linux kernel, the following vulnerability has been resolved: erofs: handle overlapped pclusters out of crafted images properly syzbot reported a task hang issue due to a deadlock case where it is waiting for the folio lock of a cached folio that will be used for cache I/Os. After looking into the crafted fuzzed image, I found it's formed with several overlapped big pclusters as below: Ext: logical offset | length : physical offset | length 0: 0.. 16384 | 16384 : 151552.. 167936 | 16384 1: 16384.. 32768 | 16384 : 155648.. 172032 | 16384 2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384 ... Here, extent 0/1 are physically overlapped although it's entirely _impossible_ for normal filesystem images generated by mkfs. First, managed folios containing compressed data will be marked
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/1bf7e414cac303c9aec1be67872e19be8b64980chttps://git.kernel.org/stable/c/9cfa199bcbbbba31cbf97b2786f44f4464f3f29ahttps://git.kernel.org/stable/c/9e2f9d34dd12e6e5b244ec488bcebd0c2d566c50https://git.kernel.org/stable/c/b9b30af0e86ffb485301ecd83b9129c9dfb7ebf8https://git.kernel.org/stable/c/c1172e65aad4b115392ea4c6e61e56e5b9b69df4https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.html
2024-10-21
Published