CVE-2024-46786
published 2024-09-18CVE-2024-46786: In the Linux kernel, the following vulnerability has been resolved: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF The…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.22%
13.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
The fscache_cookie_lru_timer is initialized when the fscache module
is inserted, but is not deleted when the fscache module is removed.
If timer_reduce() is called before removing the fscache module,
the fscache_cookie_lru_timer will be added to the timer list of
the current cpu. Afterwards, a use-after-free will be triggered
in the softIRQ after removing the fscache module, as follows:
BUG: unable to handle page fault for address: fffffbfff803c9e9
PF: supervisor read access in kernel mode
PF: error_code(0x0000) - not-present page
PGD 21ffea067 P4D 21ffea067 PUD 21ffe6067 PMD 110a7c067 PTE 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G W 6.11.0-rc3 #855
Tainted: [W]=WARN
RIP: 0010:__run_timer_base.part.0+0x254/0x8a0
Call Trace:
tmigr_handle_remote_up+0x627/0x810
__walk_groups.isra.0+0x47/0x140
tmigr_handle_remote+0x1fa/0x2f0
handle_softirqs+0x180/0x590
irq_exit_rcu+0x84/0xb0
sysvec_apic_timer_interrupt+0x6e/0x90
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:default_idle+0xf/0x20
default_idle_call+0x38/0x60
do_idle+0x2b5/0x300
cpu_startup_entry+0x54/0x60
start_secondary+0x20d/0x280
common_startup_64+0x13e/0x148
Modules linked in: [last unloaded: netfs]
Therefore delete fscache_cookie_lru_timer when removing the fscahe module.
Affected
24 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.162-1 (bookworm) | linux 6.1.162-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.162-1 (bookworm) | linux 6.1.162-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 12bb21a29c19aae50cfad4e2bb5c943108f34a7d < c1fc36d5470335546c45799d94d7bb2cbc09e8b7 | c1fc36d5470335546c45799d94d7bb2cbc09e8b7 |
| linux | linux | >= 12bb21a29c19aae50cfad4e2bb5c943108f34a7d < e0d724932ad12e3528f4ce97fc0f6078d0cce4bc | e0d724932ad12e3528f4ce97fc0f6078d0cce4bc |
| linux | linux | >= 12bb21a29c19aae50cfad4e2bb5c943108f34a7d < 0a11262549ac2ac6fb98c7cd40a67136817e5a52 | 0a11262549ac2ac6fb98c7cd40a67136817e5a52 |
| linux | linux | >= 12bb21a29c19aae50cfad4e2bb5c943108f34a7d < 72a6e22c604c95ddb3b10b5d3bb85b6ff4dbc34f | 72a6e22c604c95ddb3b10b5d3bb85b6ff4dbc34f |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.162-1 | 6.1.162-1 |
| 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 < 6.8.0-50.51 | 6.8.0-50.51 |
| linux | linux_kernel | >= 5.17 < 6.1.160 | 6.1.160 |
| linux | linux_kernel | >= 6.2 < 6.6.51 | 6.6.51 |
| 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 | — | — |
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_ubuntu5.5MEDIUM
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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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Q
GHSA
GHSA-fvcf-hj7v-3mj6: In the Linux kernel, the following vulnerability has been resolved:
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
The fsc
ghsa_unreviewed·2024-09-18
CVE-2024-46786 [HIGH] CWE-416 GHSA-fvcf-hj7v-3mj6: In the Linux kernel, the following vulnerability has been resolved:
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
The fsc
In the Linux kernel, the following vulnerability has been resolved:
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
The fscache_cookie_lru_timer is initialized when the fscache module
is inserted, but is not deleted when the fscache module is removed.
If timer_reduce() is called before removing the fscache module,
the fscache_cookie_lru_timer will be added to the timer list of
the current cpu. Afterwards, a use-after-free will be triggered
in the softIRQ after removing the fscache module, as follows:
BUG: unable to handle page fault for address: fffffbfff803c9e9
PF: supervisor read access in kernel mode
PF: error_code(0x0000) - not-present page
PGD 21ffea067 P4D 21ffea067 PUD 21ffe6067 PMD 110a7c067 PTE 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0
OSV
CVE-2024-46786: In the Linux kernel, the following vulnerability has been resolved: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF The fscac
osv·2024-09-18·CVSS 7.8
CVE-2024-46786 [HIGH] CVE-2024-46786: In the Linux kernel, the following vulnerability has been resolved: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF The fscac
In the Linux kernel, the following vulnerability has been resolved: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF The fscache_cookie_lru_timer is initialized when the fscache module is inserted, but is not deleted when the fscache module is removed. If timer_reduce() is called before removing the fscache module, the fscache_cookie_lru_timer will be added to the timer list of the current cpu. Afterwards, a use-after-free will be triggered in the softIRQ after removing the fscache module, as follows: ================================================================== BUG: unable to handle page fault for address: fffffbfff803c9e9 PF: supervisor read access in kernel mode PF: error_code(0x0000) - not-present page PGD 21ffea067 P4D 21ffea067 PUD 21ffe6067 PMD 110a7c067
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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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware mon
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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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
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did not properly check for the device to be enabled before writing. A local
attacker could possibly use this to cause a denial of service.
(CVE-2024-25741)
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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware mo
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vendor_ubuntu·2024-12-12
CVE-2024-43895 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;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring
Red Hat
kernel: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
vendor_redhat·2024-09-18·CVSS 7.8
CVE-2024-46786 [HIGH] CWE-416 kernel: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
kernel: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
In the Linux kernel, the following vulnerability has been resolved:
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
The fscache_cookie_lru_timer is initialized when the fscache module
is inserted, but is not deleted when the fscache module is removed.
If timer_reduce() is called before removing the fscache module,
the fscache_cookie_lru_timer will be added to the timer list of
the current cpu. Afterwards, a use-after-free will be triggered
in the softIRQ after removing the fscache module, as follows:
BUG: unable to handle page fault for address: fffffbfff803c9e9
PF: supervisor read access in kernel mode
PF: error_code(0x0000) - not-present page
PGD 21ffea067 P4D 21ffea067 PUD 21ffe606
Microsoft
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
vendor_msrc·2024-09-10·CVSS 7.8
CVE-2024-46786 [HIGH] CWE-416 fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF
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
Referen
Debian
CVE-2024-46786: linux - In the Linux kernel, the following vulnerability has been resolved: fscache: de...
vendor_debian·2024·CVSS 7.8
CVE-2024-46786 [HIGH] CVE-2024-46786: linux - In the Linux kernel, the following vulnerability has been resolved: fscache: de...
In the Linux kernel, the following vulnerability has been resolved: fscache: delete fscache_cookie_lru_timer when fscache exits to avoid UAF The fscache_cookie_lru_timer is initialized when the fscache module is inserted, but is not deleted when the fscache module is removed. If timer_reduce() is called before removing the fscache module, the fscache_cookie_lru_timer will be added to the timer list of the current cpu. Afterwards, a use-after-free will be triggered in the softIRQ after removing the fscache module, as follows: ================================================================== BUG: unable to handle page fault for address: fffffbfff803c9e9 PF: supervisor read access in kernel mode PF: error_code(0x0000) - not-present page PGD 21ffea067 P4D 21ffea067 PUD 21ffe6067 PMD 110a7c067
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/0a11262549ac2ac6fb98c7cd40a67136817e5a52https://git.kernel.org/stable/c/72a6e22c604c95ddb3b10b5d3bb85b6ff4dbc34fhttps://git.kernel.org/stable/c/c1fc36d5470335546c45799d94d7bb2cbc09e8b7https://git.kernel.org/stable/c/e0d724932ad12e3528f4ce97fc0f6078d0cce4bchttps://cert-portal.siemens.com/productcert/html/ssa-019113.html
2024-09-18
Published