In the Linux kernel, the following vulnerability has been resolved: tracing: Fix overflow in get_free_elt() "tracing_map->next_elt" in get_free_elt() is at risk of overflowing. Once it overflows, new elements can still be inserted into the tracing_map even though the maximum number of elements (`max_elts`) has been reached. Continuing to insert elements after the overflow could result in the tracing_map containing "tracing_map->max_size" elements, leaving no empty entries. If any attempt is made to insert an element into a full tracing_map using `__tracing_map_insert()`, it will cause an infinite loop with preemption disabled, leading to a CPU hang problem. Fix this by preventing any further increments to "tracing_map->next_elt" once it reaches "tracing_map->max_elt".
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rastreo: corrige el desbordamiento en get_free_elt() "tracing_map->next_elt" en get_free_elt() corre el riesgo de desbordarse. Una vez que se desborda, aún se pueden insertar nuevos elementos en tracing_map aunque se haya alcanzado el número máximo de elementos (`max_elts`). Continuar insertando elementos después del desbordamiento podría dar como resultado que tracing_map contenga elementos "tracing_map->max_size", sin dejar entradas vacías. Si se intenta insertar un elemento en un tracing_map completo usando `__tracing_map_insert()`, se producirá un bucle infinito con la preferencia deshabilitada, lo que provocará un problema de bloqueo de la CPU. Solucione este problema evitando incrementos adicionales en "tracing_map->next_elt" una vez que llegue a "tracing_map->max_elt".
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | LOCAL |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | LOW |
| User Interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Primary |
en
CWE-190
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b7d6240> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b1a6b00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b7d6100> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36afa5700> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b7d6f00> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b7d5fc0> | Operating System |
| linux | linux_kernel | * | <built-in method update of dict object at 0x7fd36b091a80> | Operating System |
| linux | linux_kernel | 6.11 | <built-in method update of dict object at 0x7fd2dbcce4c0> | Operating System |
| linux | linux_kernel | 6.11 | <built-in method update of dict object at 0x7fd31062b980> | Operating System |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* |
| Yes | cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* |