CVE-2024-38613
published 2024-06-19CVE-2024-38613: In the Linux kernel, the following vulnerability has been resolved: m68k: Fix spinlock race in kernel thread creation Context switching does take care to…
PriorityP417medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.18%
7.5th percentile
In the Linux kernel, the following vulnerability has been resolved:
m68k: Fix spinlock race in kernel thread creation
Context switching does take care to retain the correct lock owner across
the switch from 'prev' to 'next' tasks. This does rely on interrupts
remaining disabled for the entire duration of the switch.
This condition is guaranteed for normal process creation and context
switching between already running processes, because both 'prev' and
'next' already have interrupts disabled in their saved copies of the
status register.
The situation is different for newly created kernel threads. The status
register is set to PS_S in copy_thread(), which does leave the IPL at 0.
Upon restoring the 'next' thread's status register in switch_to() aka
resume(), interrupts then become enabled prematurely. resume() then
returns via ret_from_kernel_thread() and schedule_tail() where run queue
lock is released (see finish_task_switch() and finish_lock_switch()).
A timer interrupt calling scheduler_tick() before the lock is released
in finish_task_switch() will find the lock already taken, with the
current task as lock owner. This causes a spinlock recursion warning as
reported by Guenter Roeck.
As far as I can ascertain, this race has been opened in commit
533e6903bea0 ("m68k: split ret_from_fork(), simplify kernel_thread()")
but I haven't done a detailed study of kernel history so it may well
predate that commit.
Interrupts cannot be disabled in the saved status register copy for
kernel threads (init will complain about interrupts disabled when
finally starting user space). Disable interrupts temporarily when
switching the tasks' register sets in resume().
Note that a simple oriw 0x700,%sr after restoring sr is not enough here
- this leaves enough of a race for the 'spinlock recursion' warning to
still be observed.
Tested on ARAnyM and qemu (Quadra 800 emulation).
Affected
26 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.94-1 (bookworm) | linux 6.1.94-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < 2a8d1d95302c7d52c6ac8fa5cb4a6948ae0d3a14 | 2a8d1d95302c7d52c6ac8fa5cb4a6948ae0d3a14 |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < 5213cc01d0464c011fdc09f318705603ed3a746b | 5213cc01d0464c011fdc09f318705603ed3a746b |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < 4eeffecc8e3cce25bb559502c2fd94a948bcde82 | 4eeffecc8e3cce25bb559502c2fd94a948bcde82 |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < 77b2b67a0f8bce260c53907e5749d61466d90c87 | 77b2b67a0f8bce260c53907e5749d61466d90c87 |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < 0d9ae1253535f6e85a016e09c25ecbe6f7f59ef0 | 0d9ae1253535f6e85a016e09c25ecbe6f7f59ef0 |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < f3baf0f4f92af32943ebf27b960e0552c6c082fd | f3baf0f4f92af32943ebf27b960e0552c6c082fd |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < f1d4274a84c069be0f6098ab10c3443fc1f7134c | f1d4274a84c069be0f6098ab10c3443fc1f7134c |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < 95f00caf767b5968c2c51083957b38be4748a78a | 95f00caf767b5968c2c51083957b38be4748a78a |
| linux | linux | >= 533e6903bea0440816a0f517b0845ccea4cc7917 < da89ce46f02470ef08f0f580755d14d547da59ed | da89ce46f02470ef08f0f580755d14d547da59ed |
| linux | linux_kernel | >= 0 < 5.10.221-1 | 5.10.221-1 |
| linux | linux_kernel | >= 0 < 6.1.94-1 | 6.1.94-1 |
| linux | linux_kernel | >= 0 < 6.8.12-1 | 6.8.12-1 |
| linux | linux_kernel | >= 0 < 6.8.12-1 | 6.8.12-1 |
| linux | linux_kernel | >= 0 < 5.4.0-192.212 | 5.4.0-192.212 |
| linux | linux_kernel | >= 0 < 5.15.0-121.131 | 5.15.0-121.131 |
| linux | linux_kernel | >= 0 < 6.8.0-40.40 | 6.8.0-40.40 |
| linux | linux_kernel | >= 3.7 < 4.19.316 | 4.19.316 |
| linux | linux_kernel | >= 4.20 < 5.4.278 | 5.4.278 |
| linux | linux_kernel | >= 5.11 < 5.15.161 | 5.15.161 |
| linux | linux_kernel | >= 5.16 < 6.1.93 | 6.1.93 |
| linux | linux_kernel | >= 5.5 < 5.10.219 | 5.10.219 |
| linux | linux_kernel | >= 6.2 < 6.6.33 | 6.6.33 |
| linux | linux_kernel | >= 6.7 < 6.8.12 | 6.8.12 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian4.7MEDIUM
vendor_redhat4.7MEDIUM
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- CPU frequency scaling framework;
- Hardware crypto device drivers;
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An attacker could possibly use these to compromise the system.
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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;
- M68K architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Accessibility subsystem;
- Character device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- FireWire subsystem;
- GPU drivers;
- HW tracing;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- P
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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;
- ARM64 architecture;
- M68K architecture;
- OpenRISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Accessibility subsystem;
- Bluetooth drivers;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- DPLL subsystem;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- InfiniBand drivers;
-
GHSA
GHSA-hfvw-jf8h-qv56: In the Linux kernel, the following vulnerability has been resolved:
m68k: Fix spinlock race in kernel thread creation
Context switching does take ca
ghsa_unreviewed·2024-06-19
CVE-2024-38613 [MEDIUM] CWE-362 GHSA-hfvw-jf8h-qv56: In the Linux kernel, the following vulnerability has been resolved:
m68k: Fix spinlock race in kernel thread creation
Context switching does take ca
In the Linux kernel, the following vulnerability has been resolved:
m68k: Fix spinlock race in kernel thread creation
Context switching does take care to retain the correct lock owner across
the switch from 'prev' to 'next' tasks. This does rely on interrupts
remaining disabled for the entire duration of the switch.
This condition is guaranteed for normal process creation and context
switching between already running processes, because both 'prev' and
'next' already have interrupts disabled in their saved copies of the
status register.
The situation is different for newly created kernel threads. The status
register is set to PS_S in copy_thread(), which does leave the IPL at 0.
Upon restoring the 'next' thread's status register in switch_to() aka
resume(), interrupts then become enable
OSV
CVE-2024-38613: In the Linux kernel, the following vulnerability has been resolved: m68k: Fix spinlock race in kernel thread creation Context switching does take care
osv·2024-06-19·CVSS 4.7
CVE-2024-38613 [MEDIUM] CVE-2024-38613: In the Linux kernel, the following vulnerability has been resolved: m68k: Fix spinlock race in kernel thread creation Context switching does take care
In the Linux kernel, the following vulnerability has been resolved: m68k: Fix spinlock race in kernel thread creation Context switching does take care to retain the correct lock owner across the switch from 'prev' to 'next' tasks. This does rely on interrupts remaining disabled for the entire duration of the switch. This condition is guaranteed for normal process creation and context switching between already running processes, because both 'prev' and 'next' already have interrupts disabled in their saved copies of the status register. The situation is different for newly created kernel threads. The status register is set to PS_S in copy_thread(), which does leave the IPL at 0. Upon restoring the 'next' thread's status register in switch_to() aka resume(), interrupts then become enabled pr
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-09-25·CVSS 5.5
CVE-2024-38615 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)
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)
It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-09-23·CVSS 5.5
CVE-2024-38615 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)
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)
It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-09-23·CVSS 5.5
CVE-2024-42229 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)
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)
It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-09-18·CVSS 6.3
CVE-2024-35825 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
Gui-Dong Han discovered that the software RAID driver in the Linux kernel
contained a race condition, leading to an integer overflow vulnerability. A
privileged attacker could possibly use this to cause a denial of service
(system crash). (CVE-2024-23307)
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (s
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-09-13·CVSS 5.5
CVE-2024-42229 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)
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)
It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-09-13·CVSS 5.5
CVE-2024-40905 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the CEC driver driver in the Linux kernel
contained a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2024-23848)
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)
It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash). (CVE-2024-40902)
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2024-08-22·CVSS 7.8
CVE-2024-38560 [HIGH] Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) 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;
- M68K architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Accessibility subsystem;
- Character device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- FireWire subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HW tracing;
- InfiniBand drivers;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- Pin controllers s
Ubuntu
Linux kernel (BlueField) vulnerabilities
vendor_ubuntu·2024-08-21·CVSS 5.5
CVE-2024-27401 [MEDIUM] Linux kernel (BlueField) vulnerabilities
Title: Linux kernel (BlueField) 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;
- M68K architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Accessibility subsystem;
- Character device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- FireWire subsystem;
- GPU drivers;
- HW tracing;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- Pin controllers subsystem;
- S/390 drivers;
- SCSI drivers;
- SoundWire
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2024-08-19·CVSS 5.5
CVE-2024-37353 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) 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;
- M68K architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Accessibility subsystem;
- Character device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- FireWire subsystem;
- GPU drivers;
- HW tracing;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- Pin controllers subsystem;
- S/390 drivers;
- SCSI drivers;
- SoundWire sub
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2024-08-14·CVSS 5.5
CVE-2024-39488 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) 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;
- M68K architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Accessibility subsystem;
- Character device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- FireWire subsystem;
- GPU drivers;
- HW tracing;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- Pin controllers subsystem;
- S/390 drivers;
- SCSI drivers;
- SoundWire sub
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-08-13
CVE-2024-36905 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;
- M68K architecture;
- OpenRISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Accessibility subsystem;
- Bluetooth drivers;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- DPLL subsystem;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- InfiniBand drivers
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2024-08-12
CVE-2024-38548 Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) 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;
- M68K architecture;
- OpenRISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Accessibility subsystem;
- Bluetooth drivers;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- DPLL subsystem;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- InfiniBand d
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-08-09·CVSS 6.5
CVE-2024-36029 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde
discovered that an untrusted hypervisor could inject malicious #VC
interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw
is known as WeSee. A local attacker in control of the hypervisor could use
this to expose sensitive information or possibly execute arbitrary code in
the trusted execution environment. (CVE-2024-25742)
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;
- M68K architecture;
- OpenRISC architecture;
- PowerPC
Ubuntu
Linux kernel (Oracle) vulnerabilities
vendor_ubuntu·2024-08-09·CVSS 5.5
CVE-2024-38587 [MEDIUM] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) 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;
- M68K architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Accessibility subsystem;
- Character device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- FireWire subsystem;
- ARM SCMI message protocol;
- GPU drivers;
- HW tracing;
- InfiniBand drivers;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- Pin controllers subsyst
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-08-08
CVE-2024-36952 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;
- M68K architecture;
- OpenRISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- x86 architecture;
- Block layer subsystem;
- Accessibility subsystem;
- Bluetooth drivers;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- DPLL subsystem;
- FireWire subsystem;
- EFI core;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- Microsoft Hyper-V drivers;
- InfiniBand drivers
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-08-08·CVSS 5.5
CVE-2024-38615 [MEDIUM] 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;
- M68K architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Accessibility subsystem;
- Character device driver;
- Clock framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- FireWire subsystem;
- GPU drivers;
- HW tracing;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- Network drivers;
- Pin controllers subsystem;
- S/390 drivers;
- SCSI drivers;
- SoundWire subsystem;
Red Hat
kernel: m68k: Fix spinlock race in kernel thread creation
vendor_redhat·2024-06-19·CVSS 4.7
CVE-2024-38613 [MEDIUM] CWE-362 kernel: m68k: Fix spinlock race in kernel thread creation
kernel: m68k: Fix spinlock race in kernel thread creation
In the Linux kernel, the following vulnerability has been resolved:
m68k: Fix spinlock race in kernel thread creation
Context switching does take care to retain the correct lock owner across
the switch from 'prev' to 'next' tasks. This does rely on interrupts
remaining disabled for the entire duration of the switch.
This condition is guaranteed for normal process creation and context
switching between already running processes, because both 'prev' and
'next' already have interrupts disabled in their saved copies of the
status register.
The situation is different for newly created kernel threads. The status
register is set to PS_S in copy_thread(), which does leave the IPL at 0.
Upon restoring the 'next' thread's status register in
Debian
CVE-2024-38613: linux - In the Linux kernel, the following vulnerability has been resolved: m68k: Fix s...
vendor_debian·2024·CVSS 4.7
CVE-2024-38613 [MEDIUM] CVE-2024-38613: linux - In the Linux kernel, the following vulnerability has been resolved: m68k: Fix s...
In the Linux kernel, the following vulnerability has been resolved: m68k: Fix spinlock race in kernel thread creation Context switching does take care to retain the correct lock owner across the switch from 'prev' to 'next' tasks. This does rely on interrupts remaining disabled for the entire duration of the switch. This condition is guaranteed for normal process creation and context switching between already running processes, because both 'prev' and 'next' already have interrupts disabled in their saved copies of the status register. The situation is different for newly created kernel threads. The status register is set to PS_S in copy_thread(), which does leave the IPL at 0. Upon restoring the 'next' thread's status register in switch_to() aka resume(), interrupts then become enabled pr
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/0d9ae1253535f6e85a016e09c25ecbe6f7f59ef0https://git.kernel.org/stable/c/2a8d1d95302c7d52c6ac8fa5cb4a6948ae0d3a14https://git.kernel.org/stable/c/4eeffecc8e3cce25bb559502c2fd94a948bcde82https://git.kernel.org/stable/c/5213cc01d0464c011fdc09f318705603ed3a746bhttps://git.kernel.org/stable/c/77b2b67a0f8bce260c53907e5749d61466d90c87https://git.kernel.org/stable/c/95f00caf767b5968c2c51083957b38be4748a78ahttps://git.kernel.org/stable/c/da89ce46f02470ef08f0f580755d14d547da59edhttps://git.kernel.org/stable/c/f1d4274a84c069be0f6098ab10c3443fc1f7134chttps://git.kernel.org/stable/c/f3baf0f4f92af32943ebf27b960e0552c6c082fdhttps://git.kernel.org/stable/c/0d9ae1253535f6e85a016e09c25ecbe6f7f59ef0https://git.kernel.org/stable/c/2a8d1d95302c7d52c6ac8fa5cb4a6948ae0d3a14https://git.kernel.org/stable/c/4eeffecc8e3cce25bb559502c2fd94a948bcde82https://git.kernel.org/stable/c/5213cc01d0464c011fdc09f318705603ed3a746bhttps://git.kernel.org/stable/c/77b2b67a0f8bce260c53907e5749d61466d90c87https://git.kernel.org/stable/c/95f00caf767b5968c2c51083957b38be4748a78ahttps://git.kernel.org/stable/c/da89ce46f02470ef08f0f580755d14d547da59edhttps://git.kernel.org/stable/c/f1d4274a84c069be0f6098ab10c3443fc1f7134chttps://git.kernel.org/stable/c/f3baf0f4f92af32943ebf27b960e0552c6c082fd
2024-06-19
Published