CVE-2024-42126
published 2024-07-30CVE-2024-42126: In the Linux kernel, the following vulnerability has been resolved: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt. nmi_enter()/nmi_exit() touches…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt.
nmi_enter()/nmi_exit() touches per cpu variables which can lead to kernel
crash when invoked during real mode interrupt handling (e.g. early HMI/MCE
interrupt handler) if percpu allocation comes from vmalloc area.
Early HMI/MCE handlers are called through DEFINE_INTERRUPT_HANDLER_NMI()
wrapper which invokes nmi_enter/nmi_exit calls. We don't see any issue when
percpu allocation is from the embedded first chunk. However with
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK enabled there are chances where percpu
allocation can come from the vmalloc area.
With kernel command line "percpu_alloc=page" we can force percpu allocation
to come from vmalloc area and can see kernel crash in machine_check_early:
[ 1.215714] NIP [c000000000e49eb4] rcu_nmi_enter+0x24/0x110
[ 1.215717] LR [c0000000000461a0] machine_check_early+0xf0/0x2c0
[ 1.215719] --- interrupt: 200
[ 1.215720] [c000000fffd73180] [0000000000000000] 0x0 (unreliable)
[ 1.215722] [c000000fffd731b0] [0000000000000000] 0x0
[ 1.215724] [c000000fffd73210] [c000000000008364] machine_check_early_common+0x134/0x1f8
Fix this by avoiding use of nmi_enter()/nmi_exit() in real mode if percpu
first chunk is not embedded.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.98-1 (bookworm) | linux 6.1.98-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.98-1 (bookworm) | linux 6.1.98-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= eb553f16973ade990d05946af9ae191394712c8a < fb6675db04c4b79883373edc578d5df7bbc84848 | fb6675db04c4b79883373edc578d5df7bbc84848 |
| linux | linux | >= eb553f16973ade990d05946af9ae191394712c8a < e2afb26615adf6c3ceaaa7732aa839bcd587a057 | e2afb26615adf6c3ceaaa7732aa839bcd587a057 |
| linux | linux | >= eb553f16973ade990d05946af9ae191394712c8a < 8d3f83dfb23674540c827a8d65fba20aa300b252 | 8d3f83dfb23674540c827a8d65fba20aa300b252 |
| linux | linux | >= eb553f16973ade990d05946af9ae191394712c8a < 0f37946c62c48a907625348cbc720a7a0c547d1e | 0f37946c62c48a907625348cbc720a7a0c547d1e |
| linux | linux | >= eb553f16973ade990d05946af9ae191394712c8a < 2c78c9411e685dbc9eac8c2845111b03501975b8 | 2c78c9411e685dbc9eac8c2845111b03501975b8 |
| linux | linux | >= eb553f16973ade990d05946af9ae191394712c8a < 0db880fc865ffb522141ced4bfa66c12ab1fbb70 | 0db880fc865ffb522141ced4bfa66c12ab1fbb70 |
| linux | linux_kernel | >= 0 < 5.10.226-1 | 5.10.226-1 |
| linux | linux_kernel | >= 0 < 6.1.98-1 | 6.1.98-1 |
| linux | linux_kernel | >= 0 < 6.9.9-1 | 6.9.9-1 |
| linux | linux_kernel | >= 0 < 6.9.9-1 | 6.9.9-1 |
| linux | linux_kernel | >= 0 < 5.15.0-125.135 | 5.15.0-125.135 |
| linux | linux_kernel | >= 0 < 6.8.0-48.48 | 6.8.0-48.48 |
| linux | linux_kernel | >= 5.10 < 5.10.224 | 5.10.224 |
| linux | linux_kernel | >= 5.11 < 5.15.165 | 5.15.165 |
| linux | linux_kernel | >= 5.16 < 6.1.98 | 6.1.98 |
| linux | linux_kernel | >= 6.2 < 6.6.39 | 6.6.39 |
| linux | linux_kernel | >= 6.7 < 6.9.9 | 6.9.9 |
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_redhat5.5MEDIUM
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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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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
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- MIPS architecture;
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This update corrects flaws in the following subsystems:
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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:
- ARM32 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
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this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
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;
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Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
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Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clock framework and drivers;
- H
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Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clock framework and drivers;
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Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clock framework and drivers;
- Hardware crypto device d
OSV
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Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clock framework and drivers;
- Hardware crypto device drivers;
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linux, linux-gcp-6.8, linux-hwe-6.8 vulnerabilities
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Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel
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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clock framework and drivers;
- Hardware crypto device
GHSA
GHSA-vx4j-2p26-q8m4: In the Linux kernel, the following vulnerability has been resolved:
powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt
ghsa_unreviewed·2024-07-30
CVE-2024-42126 [MEDIUM] GHSA-vx4j-2p26-q8m4: In the Linux kernel, the following vulnerability has been resolved:
powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt
In the Linux kernel, the following vulnerability has been resolved:
powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt.
nmi_enter()/nmi_exit() touches per cpu variables which can lead to kernel
crash when invoked during real mode interrupt handling (e.g. early HMI/MCE
interrupt handler) if percpu allocation comes from vmalloc area.
Early HMI/MCE handlers are called through DEFINE_INTERRUPT_HANDLER_NMI()
wrapper which invokes nmi_enter/nmi_exit calls. We don't see any issue when
percpu allocation is from the embedded first chunk. However with
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK enabled there are chances where percpu
allocation can come from the vmalloc area.
With kernel command line "percpu_alloc=page" we can force percpu allocation
to come from vmalloc area and can see kernel cr
OSV
CVE-2024-42126: In the Linux kernel, the following vulnerability has been resolved: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt
osv·2024-07-30·CVSS 5.5
CVE-2024-42126 [MEDIUM] CVE-2024-42126: In the Linux kernel, the following vulnerability has been resolved: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt
In the Linux kernel, the following vulnerability has been resolved: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt. nmi_enter()/nmi_exit() touches per cpu variables which can lead to kernel crash when invoked during real mode interrupt handling (e.g. early HMI/MCE interrupt handler) if percpu allocation comes from vmalloc area. Early HMI/MCE handlers are called through DEFINE_INTERRUPT_HANDLER_NMI() wrapper which invokes nmi_enter/nmi_exit calls. We don't see any issue when percpu allocation is from the embedded first chunk. However with CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK enabled there are chances where percpu allocation can come from the vmalloc area. With kernel command line "percpu_alloc=page" we can force percpu allocation to come from vmalloc area and can see kernel crash
Ubuntu
Linux kernel (Azure) vulnerabilities
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CVE-2024-50006 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux
kernel contained a type-confusion error. A physically proximate remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2020-12351)
Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux
kernel did not properly initialize memory in some situations. A physically
proximate remote attacker could use this to expose sensitive information
(kernel memory). (CVE-2020-12352)
Andy Nguyen discovered that the Bluetooth HCI event packet parser in the
Linux kernel did not properly handle event advertisements of certain sizes,
leading to a
Ubuntu
Linux kernel (GKE) vulnerabilities
vendor_ubuntu·2024-12-12·CVSS 5.5
CVE-2024-42089 [MEDIUM] Linux kernel (GKE) vulnerabilities
Title: Linux kernel (GKE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel
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;
- Serial ATA
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities
vendor_ubuntu·2024-12-09·CVSS 8.8
CVE-2024-43846 [HIGH] Linux kernel (Intel IoTG) vulnerabilities
Title: Linux kernel (Intel IoTG) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744)
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;
- User-Mode Linux (UML);
- x86 arch
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2024-11-20·CVSS 7.1
CVE-2024-46752 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) 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 validate certain SMB messages, leading to an
out-of-bounds read vulnerability. An attacker could use this to cause a
denial of service (system crash) or possibly expose sensitive information.
(CVE-2023-6610)
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in the
Linux kernel for x86 platforms did not properly handle 32-bit emulation on
TDX and SEV. An attacker with access to the VMM could use this to cause a
denial of service (guest crash) or possibly execute arbitrary code.
(CVE-2024-25744
Ubuntu
Linux kernel (Low Latency) vulnerabilities
vendor_ubuntu·2024-11-19·CVSS 5.5
CVE-2023-52888 [MEDIUM] Linux kernel (Low Latency) vulnerabilities
Title: Linux kernel (Low Latency) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-15·CVSS 5.5
CVE-2023-52888 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-14·CVSS 5.5
CVE-2024-42239 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-13·CVSS 5.5
CVE-2024-42239 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-12·CVSS 8.8
CVE-2024-46815 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
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;
- User-Mode Linux (UML);
- x86 architecture;
- B
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-11·CVSS 8.8
CVE-2024-43908 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and
Shweta Shinde discovered that the Confidential Computing framework in
the Linux kernel for x86 platforms did not properly handle 32-bit
emulation on TDX and SEV. An attacker with access to the VMM could use
this to cause a denial of service (guest crash) or possibly execute
arbitrary code. (CVE-2024-25744)
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;
- User-Mode Linux (UML);
- x86 architecture;
- B
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-07·CVSS 5.5
CVE-2024-41050 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-07·CVSS 5.5
CVE-2024-41050 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-04·CVSS 5.5
CVE-2024-42131 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-01·CVSS 5.5
CVE-2024-42136 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-01·CVSS 5.5
CVE-2024-42103 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux
kernel 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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Cryptographic API;
- Serial ATA and Parallel ATA drivers;
- Null block device driver;
- Bluetooth drivers;
- Cdrom driver;
- Clo
Red Hat
kernel: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt.
vendor_redhat·2024-07-30·CVSS 5.5
CVE-2024-42126 [MEDIUM] CWE-827 kernel: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt.
kernel: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt.
In the Linux kernel, the following vulnerability has been resolved:
powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt.
nmi_enter()/nmi_exit() touches per cpu variables which can lead to kernel
crash when invoked during real mode interrupt handling (e.g. early HMI/MCE
interrupt handler) if percpu allocation comes from vmalloc area.
Early HMI/MCE handlers are called through DEFINE_INTERRUPT_HANDLER_NMI()
wrapper which invokes nmi_enter/nmi_exit calls. We don't see any issue when
percpu allocation is from the embedded first chunk. However with
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK enabled there are chances where percpu
allocation can come from the vmalloc area.
With kernel command line "percpu_alloc=page" we can force pe
Debian
CVE-2024-42126: linux - In the Linux kernel, the following vulnerability has been resolved: powerpc: Av...
vendor_debian·2024·CVSS 5.5
CVE-2024-42126 [MEDIUM] CVE-2024-42126: linux - In the Linux kernel, the following vulnerability has been resolved: powerpc: Av...
In the Linux kernel, the following vulnerability has been resolved: powerpc: Avoid nmi_enter/nmi_exit in real mode interrupt. nmi_enter()/nmi_exit() touches per cpu variables which can lead to kernel crash when invoked during real mode interrupt handling (e.g. early HMI/MCE interrupt handler) if percpu allocation comes from vmalloc area. Early HMI/MCE handlers are called through DEFINE_INTERRUPT_HANDLER_NMI() wrapper which invokes nmi_enter/nmi_exit calls. We don't see any issue when percpu allocation is from the embedded first chunk. However with CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK enabled there are chances where percpu allocation can come from the vmalloc area. With kernel command line "percpu_alloc=page" we can force percpu allocation to come from vmalloc area and can see kernel crash
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/0db880fc865ffb522141ced4bfa66c12ab1fbb70https://git.kernel.org/stable/c/0f37946c62c48a907625348cbc720a7a0c547d1ehttps://git.kernel.org/stable/c/2c78c9411e685dbc9eac8c2845111b03501975b8https://git.kernel.org/stable/c/8d3f83dfb23674540c827a8d65fba20aa300b252https://git.kernel.org/stable/c/e2afb26615adf6c3ceaaa7732aa839bcd587a057https://git.kernel.org/stable/c/fb6675db04c4b79883373edc578d5df7bbc84848https://git.kernel.org/stable/c/0db880fc865ffb522141ced4bfa66c12ab1fbb70https://git.kernel.org/stable/c/0f37946c62c48a907625348cbc720a7a0c547d1ehttps://git.kernel.org/stable/c/2c78c9411e685dbc9eac8c2845111b03501975b8https://git.kernel.org/stable/c/8d3f83dfb23674540c827a8d65fba20aa300b252https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
2024-07-30
Published