// For flags

CVE-2024-38780

dma-buf/sw-sync: don't enable IRQ from sync_print_obj()

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved:

dma-buf/sw-sync: don't enable IRQ from sync_print_obj()

Since commit a6aa8fca4d79 ("dma-buf/sw-sync: Reduce irqsave/irqrestore from
known context") by error replaced spin_unlock_irqrestore() with
spin_unlock_irq() for both sync_debugfs_show() and sync_print_obj() despite
sync_print_obj() is called from sync_debugfs_show(), lockdep complains
inconsistent lock state warning.

Use plain spin_{lock,unlock}() for sync_print_obj(), for
sync_debugfs_show() is already using spin_{lock,unlock}_irq().

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dma-buf/sw-sync: no habilitar IRQ desde sync_print_obj() Desde el commit a6aa8fca4d79 ("dma-buf/sw-sync: reducir irqsave/irqrestore desde el contexto conocido" ) por error reemplazó spin_unlock_irqrestore() con spin_unlock_irq() tanto para sync_debugfs_show() como para sync_print_obj() a pesar de que sync_print_obj() se llama desde sync_debugfs_show(), lockdep se queja de una advertencia de estado de bloqueo inconsistente. Utilice spin_{lock,unlock}() simple para sync_print_obj(), ya que sync_debugfs_show() ya está usando spin_{lock,unlock}_irq().

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-21 CVE Reserved
  • 2024-06-21 CVE Published
  • 2024-06-25 EPSS Updated
  • 2024-11-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-667: Improper Locking
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 4.19.316
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 4.19.316"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 5.4.278
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.4.278"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 5.10.219
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.10.219"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 5.15.161
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.15.161"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 6.1.93
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.1.93"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 6.6.33
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.6.33"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 6.9.4
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.9.4"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.14 < 6.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.10"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 4.9.68
Search vendor "Linux" for product "Linux Kernel" and version "4.9.68"
en
Affected