CVE-2024-58094
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
jfs: add check read-only before truncation in jfs_truncate_nolock()
Added a check for "read-only" mode in the `jfs_truncate_nolock` function to avoid errors related to writing to a read-only filesystem.
Call stack:
If the `isReadOnly(ip)` condition is triggered in `jfs_truncate_nolock`, the function execution will stop, and no further data modification will occur. Instead, the `xtTruncate` function will be called with the "COMMIT_WMAP" flag, preventing modifications in "read-only" mode.
Detalles técnicos trazas, registros y código del informe original
block_write_begin() {
jfs_write_failed() {
jfs_truncate() {
jfs_truncate_nolock() {
txEnd() {
...
log = JFS_SBI(tblk->sb)->log;
// (log == NULL)CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.23%
- Percentil entre todas las CVEs puntuadas: 12
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/1fee021d6cf1d41b3f6e3fd028939be8f5d5c5db
- https://git.kernel.org/stable/c/41da1715cd24e177678f93ee27f737b095fc838b
- https://git.kernel.org/stable/c/77038187890ea82d237b05c8a9c4e08a38b1efcb
- https://git.kernel.org/stable/c/b5799dd77054c1ec49b0088b006c9908e256843b
- https://git.kernel.org/stable/c/b57a8983916fc2cf54fd8de3afc733c6b3d1c0e5
- https://git.kernel.org/stable/c/b98506e61e1bb6764c6711198cfab826df8ca952
- https://git.kernel.org/stable/c/f605bc3e162f5c6faa9bd3602ce496053d06a4bb
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: add check read-only before truncation in jfs_truncate_nolock()\n\nAdded a check for \"read-only\" mode in the `jfs_truncate_nolock`\nfunction to avoid errors related to writing to a read-only\nfilesystem.\n\nCall stack:\n\nblock_write_begin() {\n jfs_write_failed() {\n jfs_truncate() {\n jfs_truncate_nolock() {\n txEnd() {\n ...\n log = JFS_SBI(tblk->sb)->log;\n // (log == NULL)\n\nIf the `isReadOnly(ip)` condition is triggered in\n`jfs_truncate_nolock`, the function execution will stop, and no\nfurther data modification will occur. Instead, the `xtTruncate`\nfunction will be called with the \"COMMIT_WMAP\" flag, preventing\nmodifications in \"read-only\" mode."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jfs: añadir comprobación de solo lectura antes del truncamiento en jfs_truncate_nolock(). Se añadió una comprobación para el modo de \"solo lectura\" en la función `jfs_truncate_nolock` para evitar errores relacionados con la escritura en un sistema de archivos de solo lectura. Pila de llamadas: block_write_begin() { jfs_write_failed() { jfs_truncate() { jfs_truncate_nolock() { txEnd() { ... log = JFS_SBI(tblk->sb)->log; // (log == NULL) Si se activa la condición `isReadOnly(ip)` en `jfs_truncate_nolock`, la ejecución de la función se detendrá y no se realizarán más modificaciones de datos. En su lugar, se llamará a la función `xtTruncate` con el indicador \"COMMIT_WMAP\", lo que impide las modificaciones en modo de \"solo lectura\"."
}
],
"lastModified": "2026-09-02T13:16:48.343",
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