CVE-2024-38604

block: refine the EOF check in blkdev_iomap_begin

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

block: refine the EOF check in blkdev_iomap_begin

blkdev_iomap_begin rounds down the offset to the logical block size
before stashing it in iomap->offset and checking that it still is
inside the inode size.

Check the i_size check to the raw pos value so that we don't try a
zero size write if iter->pos is unaligned.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bloque: refina la comprobación de EOF en blkdev_iomap_begin blkdev_iomap_begin redondea hacia abajo el desplazamiento al tamaño del bloque lógico antes de guardarlo en iomap->offset y comprobar que todavía está dentro del tamaño del inodo. Verifique la verificación i_size en el valor pos sin formato para que no intentemos una escritura de tamaño cero si iter->pos no está alineado.

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-06-18 CVE Reserved
2024-06-19 CVE Published
2024-06-20 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (5)

URL	Tag	Source
https://git.kernel.org/stable/c/487c607df790d366e67a7d6a30adf785cdd98e55	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/910717920c8c3f9386277a44c44d448058a18084	2024-06-12
https://git.kernel.org/stable/c/72c54e063c32aeb38d43a2bd897821e6e5a1757d	2024-05-30
https://git.kernel.org/stable/c/10b723bcba8986537a484aa94dbfc9093fd776a1	2024-05-30
https://git.kernel.org/stable/c/0c12028aec837f5a002009bbf68d179d506510e8	2024-05-03

URL	Date	SRC

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"				>= 6.6 < 6.6.33 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6 < 6.6.33"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.6 < 6.8.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6 < 6.8.12"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.6 < 6.9.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6 < 6.9.3"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 6.6 < 6.10 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6 < 6.10"		en		Affected