CVE-2024-26810
vfio/pci: Lock external INTx masking ops
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
vfio/pci: Lock external INTx masking ops
Mask operations through config space changes to DisINTx may race INTx
configuration changes via ioctl. Create wrappers that add locking for
paths outside of the core interrupt code.
In particular, irq_type is updated holding igate, therefore testing
is_intx() requires holding igate. For example clearing DisINTx from
config space can otherwise race changes of the interrupt configuration.
This aligns interfaces which may trigger the INTx eventfd into two
camps, one side serialized by igate and the other only enabled while
INTx is configured. A subsequent patch introduces synchronization for
the latter flows.
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: vfio/pci: bloquear operaciones de enmascaramiento INTx externas Las operaciones de enmascaramiento a través de cambios en el espacio de configuración a DisINTx pueden acelerar los cambios de configuración de INTx a través de ioctl. Cree contenedores que agreguen bloqueo para rutas fuera del código de interrupción central. En particular, irq_type se actualiza manteniendo igate, por lo tanto, probar is_intx() requiere mantener igate. Por ejemplo, borrar DisINTx del espacio de configuración puede acelerar los cambios en la configuración de la interrupción. Esto alinea las interfaces que pueden desencadenar el evento INTx en dos campos, un lado serializado por igate y el otro solo habilitado mientras INTx está configurado. Un parche posterior introduce la sincronización para estos últimos flujos.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-02-19 CVE Reserved
- 2024-04-05 CVE Published
- 2024-04-11 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 | Vuln. Introduced | |
| https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2024-26810 | 2024-09-03 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2273654 | 2024-09-03 |
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" | >= 3.6 < 5.4.274 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 5.4.274" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.6 < 5.10.215 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 5.10.215" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.6 < 5.15.154 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 5.15.154" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.6 < 6.1.84 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 6.1.84" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.6 < 6.6.24 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 6.6.24" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.6 < 6.7.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 6.7.12" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.6 < 6.8.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 6.8.3" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.6 < 6.9 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.6 < 6.9" | en |
Affected
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