CVE-2023-52730

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52730
In the Linux kernel, the following vulnerability has been resolved: mmc: sdio: fix possible resource leaks in some error paths If sdio_add_func() or sdio_init_func() fails, sdio_remove_func() can not release the resources, because the sdio function is not presented in these two cases, it won't call of_node_put() or put_device(). To fix these leaks, make sdio_func_present() only control whether device_del() needs to be called or not, then always call of_node_put() and put_device(). In error case in sdio_init_func(), the reference of 'card->dev' is not get, to avoid redundant put in sdio_free_func_cis(), move the get_device() to sdio_alloc_func() and put_device() to sdio_release_func(), it can keep the get/put function be balanced. Without this patch, while doing fault inject test, it can get the following leak reports, after this fix, the leak is gone. unreferenced object 0xffff888112514000 (size 2048): comm "kworker/3:2", pid 65, jiffies 4294741614 (age 124.774s) hex dump (first 32 bytes): 00 e0 6f 12 81 88 ff ff 60 58 8d 06 81 88 ff ff ..o.....`X...... 10 40 51 12 81 88 ff ff 10 40 51 12 81 88 ff ff .@Q......@Q..... backtrace: [<000000009e5931da>] kmalloc_trace+0x21/0x110 [<000000002f839ccb>] mmc_alloc_card+0x38/0xb0 [mmc_core] [<0000000004adcbf6>] mmc_sdio_init_card+0xde/0x170 [mmc_core] [<000000007538fea0>] mmc_attach_sdio+0xcb/0x1b0 [mmc_core] [<00000000d4fdeba7>] mmc_rescan+0x54a/0x640 [mmc_core] unreferenced object 0xffff888112511000 (size 2048): comm "kworker/3:2", pid 65, jiffies 4294741623 (age 124.766s) hex dump (first 32 bytes): 00 40 51 12 81 88 ff ff e0 58 8d 06 81 88 ff ff .@Q......X...... 10 10 51 12 81 88 ff ff 10 10 51 12 81 88 ff ff ..Q.......Q..... backtrace: [<000000009e5931da>] kmalloc_trace+0x21/0x110 [<00000000fcbe706c>] sdio_alloc_func+0x35/0x100 [mmc_core] [<00000000c68f4b50>] mmc_attach_sdio.cold.18+0xb1/0x395 [mmc_core] [<00000000d4fdeba7>] mmc_rescan+0x54a/0x640 [mmc_core]

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/1e06cf04239e202248c8fa356bf11449dc73cfbd Patch
https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931 Patch
https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a Patch
https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded Patch
https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e Patch
https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58 Patch
https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72 Patch
https://git.kernel.org/stable/c/1e06cf04239e202248c8fa356bf11449dc73cfbd Patch
https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931 Patch
https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a Patch
https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded Patch
https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e Patch
https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58 Patch
https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc8:*:*:*:*:*:*
History

23 Sep 2025, 18:57

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc8:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/1e06cf04239e202248c8fa356bf11449dc73cfbd - () https://git.kernel.org/stable/c/1e06cf04239e202248c8fa356bf11449dc73cfbd - Patch
References () https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931 - () https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931 - Patch
References () https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a - () https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a - Patch
References () https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded - () https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded - Patch
References () https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e - () https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e - Patch
References () https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58 - () https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58 - Patch
References () https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72 - () https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72 - Patch
First Time Linux linux Kernel
Linux
CWE CWE-401
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

21 Nov 2024, 08:40

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mmc: sdio: soluciona posibles fugas de recursos en algunas rutas de error. Si sdio_add_func() o sdio_init_func() falla, sdio_remove_func() no puede liberar los recursos, porque no se presenta la función sdio en estos dos casos, no llamará a of_node_put() o put_device(). Para solucionar estas fugas, haga que sdio_func_present() solo controle si es necesario llamar a device_del() o no, luego llame siempre a of_node_put() y put_device(). En caso de error en sdio_init_func(), la referencia de 'card-&gt;dev' no se obtiene, para evitar la colocación redundante en sdio_free_func_cis(), mueva get_device() a sdio_alloc_func() y put_device() a sdio_release_func(), puede mantenga equilibrada la función get/put. Sin este parche, mientras realiza la prueba de inyección de fallas, puede obtener los siguientes informes de fugas; después de esta solución, la fuga desaparece. objeto sin referencia 0xffff888112514000 (tamaño 2048): comunicación "kworker/3:2", pid 65, jiffies 4294741614 (edad 124,774 s) volcado hexadecimal (primeros 32 bytes): 00 e0 6f 12 81 88 ff ff 60 58 8d 06 81 8 y siguientes ff ..o.....`X...... 10 40 51 12 81 88 ff ff 10 40 51 12 81 88 ff ff .@Q......@Q..... retroceso : [&lt;000000009e5931da&gt;] kmalloc_trace+0x21/0x110 [&lt;000000002f839ccb&gt;] mmc_alloc_card+0x38/0xb0 [mmc_core] [&lt;0000000004adcbf6&gt;] mmc_sdio_init_card+0xde/0x170 [mmc_core] [&lt;000000007538fea0&gt;] mmc_attach_sdio+0xcb/0x1b0 [mmc_core] [&lt;00000000d4fdeba7&gt;] mmc_rescan+0x54a/0x640 [mmc_core] objeto sin referencia 0xffff888112511000 (tamaño 2048): comm "kworker/3:2", pid 65, santiamén 4294741623 (edad 124,766 s) volcado hexadecimal (primero 32 bytes): 00 40 51 12 81 88 ff ff e0 58 8d 06 81 88 ff ff .@Q......X...... 10 10 51 12 81 88 ff ff 10 10 51 12 81 88 ff ff ..Q. ......P..... rastreo inverso: [&lt;000000009e5931da&gt;] kmalloc_trace+0x21/0x110 [&lt;00000000fcbe706c&gt;] sdio_alloc_func+0x35/0x100 [mmc_core] [&lt;00000000c68f4b50&gt;] mmc_attach_sdio.cold. 18+0xb1/ 0x395 [mmc_core] [&lt;00000000d4fdeba7&gt;] mmc_rescan+0x54a/0x640 [mmc_core]
References () https://git.kernel.org/stable/c/1e06cf04239e202248c8fa356bf11449dc73cfbd - () https://git.kernel.org/stable/c/1e06cf04239e202248c8fa356bf11449dc73cfbd -
References () https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931 - () https://git.kernel.org/stable/c/30716d9f0fa1766e522cf24c8a456244e4fc9931 -
References () https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a - () https://git.kernel.org/stable/c/5c7858adada31dbed042448cff6997dd6efc472a -
References () https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded - () https://git.kernel.org/stable/c/605d9fb9556f8f5fb4566f4df1480f280f308ded -
References () https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e - () https://git.kernel.org/stable/c/761db46b29b496946046d8cb33c7ea6de6bef36e -
References () https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58 - () https://git.kernel.org/stable/c/92ff03c2563c9b57a027c744750f3b7d2f261c58 -
References () https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72 - () https://git.kernel.org/stable/c/f855d31bb38d663c3ba672345d7cce9324ba3b72 -

21 May 2024, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-21 16:15

Updated : 2025-09-23 18:57

NVD link : CVE-2023-52730

Mitre link : CVE-2023-52730

CVE.ORG link : CVE-2023-52730

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime