cve-2024-26685
Vulnerability from cvelistv5
Published
2024-04-03 14:54
Modified
2024-11-07 14:55
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
nilfs2: fix potential bug in end_buffer_async_write
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2c3bdba00283a6c7a5b19481a59a730f46063803
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5bc09b397cbf1221f8a8aacb1152650c9195b02b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/626daab3811b772086aef1bf8eed3ffe6f523eff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6589f0f72f8edd1fa11adce4eedbd3615f2e78ab
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8fa90634ec3e9cc50f42dd605eec60f2d146ced8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4a09fdac625e64abe478dcf88bfa20406616928
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d31c8721e816eff5ca6573cc487754f357c093cd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f3e4963566f58726d3265a727116a42b591f6596
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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Pero el indicador async_write ahora se usa como marcador en el commit 7f42ec394156 (\\\"nilfs2: soluciona el problema con la condici\u00f3n de ejecuci\u00f3n de competencia entre segmentos por bloques sucios\\\") como un medio para resolver la inserci\u00f3n de lista doble de bloques sucios en nilfs_lookup_dirty_data_buffers() y nilfs_lookup_node_buffers( ) y el accidente resultante. Esta modificaci\u00f3n es segura siempre que se utilice para datos de archivos y bloques de nodos de \u00e1rbol b donde las cach\u00e9s de p\u00e1ginas sean independientes. Sin embargo, era irrelevante y redundante introducir tambi\u00e9n async_write para el resumen de segmento y los bloques s\u00faper ra\u00edz que comparten buffers con el dispositivo de respaldo. Esto gener\u00f3 la posibilidad de que la verificaci\u00f3n BUG_ON en end_buffer_async_write fallara como se describe anteriormente, si se produjeran reescrituras independientes del dispositivo de respaldo en paralelo. 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}


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