CVE-2024-35844

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-35844
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix reserve_cblocks counting error when out of space When a file only needs one direct_node, performing the following operations will cause the file to be unrepairable: unisoc # ./f2fs_io compress test.apk unisoc #df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.2M 100% /data unisoc # ./f2fs_io release_cblocks test.apk 924 unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 4.8M 100% /data unisoc # dd if=/dev/random of=file4 bs=1M count=3 3145728 bytes (3.0 M) copied, 0.025 s, 120 M/s unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.8M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk F2FS_IOC_RESERVE_COMPRESS_BLOCKS failed: No space left on device adb reboot unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 11M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk 0 This is because the file has only one direct_node. After returning to -ENOSPC, reserved_blocks += ret will not be executed. As a result, the reserved_blocks at this time is still 0, which is not the real number of reserved blocks. Therefore, fsck cannot be set to repair the file. After this patch, the fsck flag will be set to fix this problem. unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.8M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk F2FS_IOC_RESERVE_COMPRESS_BLOCKS failed: No space left on device adb reboot then fsck will be executed unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 11M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk 924

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2f6d721e14b69d6e1251f69fa238b48e8374e25f Patch
https://git.kernel.org/stable/c/569c198c9e2093fd29cc071856a4e548fda506bc Patch
https://git.kernel.org/stable/c/889846dfc8ee2cf31148a44bfd2faeb2faadc685 Patch
https://git.kernel.org/stable/c/f0bf89e84c3afb79d7a3a9e4bc853ad6a3245c0a Patch
https://git.kernel.org/stable/c/fa3ac8b1a227d9b470b87972494293348b5839ee Patch
https://git.kernel.org/stable/c/fc0aed88afbf6f606205129a7466eebdf528e3f3 Patch
http://www.openwall.com/lists/oss-security/2024/05/30/1 Mailing List
http://www.openwall.com/lists/oss-security/2024/05/30/2 Mailing List
https://git.kernel.org/stable/c/2f6d721e14b69d6e1251f69fa238b48e8374e25f Patch
https://git.kernel.org/stable/c/569c198c9e2093fd29cc071856a4e548fda506bc Patch
https://git.kernel.org/stable/c/889846dfc8ee2cf31148a44bfd2faeb2faadc685 Patch
https://git.kernel.org/stable/c/f0bf89e84c3afb79d7a3a9e4bc853ad6a3245c0a Patch
https://git.kernel.org/stable/c/fa3ac8b1a227d9b470b87972494293348b5839ee Patch
https://git.kernel.org/stable/c/fc0aed88afbf6f606205129a7466eebdf528e3f3 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

26 Sep 2025, 16:04

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/2f6d721e14b69d6e1251f69fa238b48e8374e25f - () https://git.kernel.org/stable/c/2f6d721e14b69d6e1251f69fa238b48e8374e25f - Patch
References () https://git.kernel.org/stable/c/569c198c9e2093fd29cc071856a4e548fda506bc - () https://git.kernel.org/stable/c/569c198c9e2093fd29cc071856a4e548fda506bc - Patch
References () https://git.kernel.org/stable/c/889846dfc8ee2cf31148a44bfd2faeb2faadc685 - () https://git.kernel.org/stable/c/889846dfc8ee2cf31148a44bfd2faeb2faadc685 - Patch
References () https://git.kernel.org/stable/c/f0bf89e84c3afb79d7a3a9e4bc853ad6a3245c0a - () https://git.kernel.org/stable/c/f0bf89e84c3afb79d7a3a9e4bc853ad6a3245c0a - Patch
References () https://git.kernel.org/stable/c/fa3ac8b1a227d9b470b87972494293348b5839ee - () https://git.kernel.org/stable/c/fa3ac8b1a227d9b470b87972494293348b5839ee - Patch
References () https://git.kernel.org/stable/c/fc0aed88afbf6f606205129a7466eebdf528e3f3 - () https://git.kernel.org/stable/c/fc0aed88afbf6f606205129a7466eebdf528e3f3 - Patch
References () http://www.openwall.com/lists/oss-security/2024/05/30/1 - () http://www.openwall.com/lists/oss-security/2024/05/30/1 - Mailing List
References () http://www.openwall.com/lists/oss-security/2024/05/30/2 - () http://www.openwall.com/lists/oss-security/2024/05/30/2 - Mailing List
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE NVD-CWE-noinfo

21 Nov 2024, 09:21

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/05/30/1 -
  • () http://www.openwall.com/lists/oss-security/2024/05/30/2 -
References () https://git.kernel.org/stable/c/2f6d721e14b69d6e1251f69fa238b48e8374e25f - () https://git.kernel.org/stable/c/2f6d721e14b69d6e1251f69fa238b48e8374e25f -
References () https://git.kernel.org/stable/c/569c198c9e2093fd29cc071856a4e548fda506bc - () https://git.kernel.org/stable/c/569c198c9e2093fd29cc071856a4e548fda506bc -
References () https://git.kernel.org/stable/c/889846dfc8ee2cf31148a44bfd2faeb2faadc685 - () https://git.kernel.org/stable/c/889846dfc8ee2cf31148a44bfd2faeb2faadc685 -
References () https://git.kernel.org/stable/c/f0bf89e84c3afb79d7a3a9e4bc853ad6a3245c0a - () https://git.kernel.org/stable/c/f0bf89e84c3afb79d7a3a9e4bc853ad6a3245c0a -
References () https://git.kernel.org/stable/c/fa3ac8b1a227d9b470b87972494293348b5839ee - () https://git.kernel.org/stable/c/fa3ac8b1a227d9b470b87972494293348b5839ee -
References () https://git.kernel.org/stable/c/fc0aed88afbf6f606205129a7466eebdf528e3f3 - () https://git.kernel.org/stable/c/fc0aed88afbf6f606205129a7466eebdf528e3f3 -

05 Nov 2024, 10:16

Type Values Removed Values Added
References
  • {'url': 'http://www.openwall.com/lists/oss-security/2024/05/30/1', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'http://www.openwall.com/lists/oss-security/2024/05/30/2', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}

10 Jun 2024, 18:15

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/05/30/1 -

10 Jun 2024, 17:16

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2024/05/30/2 -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: compress: corrige el error de conteo de reserve_cblocks cuando no hay espacio. Cuando un archivo solo necesita un direct_node, realizar las siguientes operaciones hará que el archivo no se pueda reparar: unisoc # ./f2fs_io compress test.apk unisoc #df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.2M 100% /data unisoc # ./f2fs_io release_cblocks test.apk 924 unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 4,8M 100% /data unisoc # dd if=/dev/random of=file4 bs=1M count=3 3145728 bytes (3,0 M) copiados, 0,025 s, 120 M/s unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.8M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk F2FS_IOC_RESERVE_COMPRESS_BLOCKS falló: no queda espacio en el dispositivo adb reboot unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 11M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk 0 Esto se debe a que el archivo tiene solo un nodo_directo. Después de regresar a -ENOSPC, reserve_blocks += ret no se ejecutará. Como resultado, los bloques_reservados en este momento siguen siendo 0, que no es el número real de bloques reservados. Por lo tanto, no se puede configurar fsck para reparar el archivo. Después de este parche, se configurará el indicador fsck para solucionar este problema. unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 1.8M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk F2FS_IOC_RESERVE_COMPRESS_BLOCKS falló: no queda espacio en el dispositivo y al reinicio del adb luego se ejecutará fsck unisoc # df -h | grep dm-48 /dev/block/dm-48 112G 112G 11M 100% /data unisoc # ./f2fs_io reserve_cblocks test.apk 924

17 May 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-17 15:15

Updated : 2025-09-26 16:04

NVD link : CVE-2024-35844

Mitre link : CVE-2024-35844

CVE.ORG link : CVE-2024-35844

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo