cve-2024-26981
Vulnerability from cvelistv5
Published
2024-05-01 05:27
Modified
2024-12-19 08:51
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix OOB in nilfs_set_de_type The size of the nilfs_type_by_mode array in the fs/nilfs2/dir.c file is defined as "S_IFMT >> S_SHIFT", but the nilfs_set_de_type() function, which uses this array, specifies the index to read from the array in the same way as "(mode & S_IFMT) >> S_SHIFT". static void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode *inode) { umode_t mode = inode->i_mode; de->file_type = nilfs_type_by_mode[(mode & S_IFMT)>>S_SHIFT]; // oob } However, when the index is determined this way, an out-of-bounds (OOB) error occurs by referring to an index that is 1 larger than the array size when the condition "mode & S_IFMT == S_IFMT" is satisfied. Therefore, a patch to resize the nilfs_type_by_mode array should be applied to prevent OOB errors.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/054f29e9ca05be3906544c5f2a2c7321c30a4243
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2382eae66b196c31893984a538908c3eb7506ff9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/897ac5306bbeb83e90c437326f7044c79a17c611
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90823f8d9ecca3d5fa6b102c8e464c62f416975f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90f43980ea6be4ad903e389be9a27a2a0018f1c8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bdbe483da21f852c93b22557b146bc4d989260f0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4a7dc9523b59b3e73fd522c73e95e072f876b16
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/054f29e9ca05be3906544c5f2a2c7321c30a4243
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2382eae66b196c31893984a538908c3eb7506ff9
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/897ac5306bbeb83e90c437326f7044c79a17c611
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/90823f8d9ecca3d5fa6b102c8e464c62f416975f
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/90f43980ea6be4ad903e389be9a27a2a0018f1c8
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bdbe483da21f852c93b22557b146bc4d989260f0
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c4a7dc9523b59b3e73fd522c73e95e072f876b16
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
Impacted products
Vendor Product Version
Linux Linux Version: 2.6.30
Show details on NVD website

To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26981\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-01T06:15:15.517\",\"lastModified\":\"2024-11-21T09:03:32.790\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnilfs2: fix OOB in nilfs_set_de_type\\n\\nThe size of the nilfs_type_by_mode array in the fs/nilfs2/dir.c file is\\ndefined as \\\"S_IFMT \u003e\u003e S_SHIFT\\\", but the nilfs_set_de_type() function,\\nwhich uses this array, specifies the index to read from the array in the\\nsame way as \\\"(mode \u0026 S_IFMT) \u003e\u003e S_SHIFT\\\".\\n\\nstatic void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode\\n *inode)\\n{\\n\\tumode_t mode = inode-\u003ei_mode;\\n\\n\\tde-\u003efile_type = nilfs_type_by_mode[(mode \u0026 S_IFMT)\u003e\u003eS_SHIFT]; // oob\\n}\\n\\nHowever, when the index is determined this way, an out-of-bounds (OOB)\\nerror occurs by referring to an index that is 1 larger than the array size\\nwhen the condition \\\"mode \u0026 S_IFMT == S_IFMT\\\" is satisfied.  Therefore, a\\npatch to resize the nilfs_type_by_mode array should be applied to prevent\\nOOB errors.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: corrige OOB en nilfs_set_de_type El tama\u00f1o de la matriz nilfs_type_by_mode en el archivo fs/nilfs2/dir.c se define como \\\"S_IFMT \u0026gt;\u0026gt; S_SHIFT\\\", pero la funci\u00f3n nilfs_set_de_type() , que utiliza esta matriz, especifica el \u00edndice a leer de la matriz de la misma manera que \\\"(mode \u0026amp; S_IFMT) \u0026gt;\u0026gt; S_SHIFT\\\". static void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode *inode) { umode_t modo = inodo-\u0026gt;i_mode; de-\u0026gt;tipo_archivo = nilfs_type_by_mode[(modo \u0026amp; S_IFMT)\u0026gt;\u0026gt;S_SHIFT]; // oob } Sin embargo, cuando el \u00edndice se determina de esta manera, se produce un error fuera de los l\u00edmites (OOB) al hacer referencia a un \u00edndice que es 1 mayor que el tama\u00f1o de la matriz cuando la condici\u00f3n \\\"modo \u0026amp; S_IFMT == S_IFMT\\\" es satisfecho. Por lo tanto, se debe aplicar un parche para cambiar el tama\u00f1o de la matriz nilfs_type_by_mode para evitar errores OOB.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/054f29e9ca05be3906544c5f2a2c7321c30a4243\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2382eae66b196c31893984a538908c3eb7506ff9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/897ac5306bbeb83e90c437326f7044c79a17c611\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/90823f8d9ecca3d5fa6b102c8e464c62f416975f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/90f43980ea6be4ad903e389be9a27a2a0018f1c8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bdbe483da21f852c93b22557b146bc4d989260f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c4a7dc9523b59b3e73fd522c73e95e072f876b16\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/054f29e9ca05be3906544c5f2a2c7321c30a4243\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/2382eae66b196c31893984a538908c3eb7506ff9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/897ac5306bbeb83e90c437326f7044c79a17c611\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/90823f8d9ecca3d5fa6b102c8e464c62f416975f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/90f43980ea6be4ad903e389be9a27a2a0018f1c8\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/bdbe483da21f852c93b22557b146bc4d989260f0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/c4a7dc9523b59b3e73fd522c73e95e072f876b16\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
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}


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