Description (CNA)
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".
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before 302ceb625d7b990db205a15e371f9a71238de91c; affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18; affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before eb223bf01e688dfe37e813c8988ee11c8c9f8d0a; affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before cd10d186a5409a1fe6e976df82858e9773a698da; affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before 788ea62499b3c18541fd6d621964d8fafbc4aec5; affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before a172c7b22bc2feaf489cfc6d6865f7237134fdf8; affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before 236bb4690773ab6869b40bedc7bc8d889e36f9d6; affected 08d43a5fa063e03c860f2f391a30c388bcbc948e before bcf86c01ca4676316557dd482c8416ece8c2e143 |
| Linux / Linux | affected 4.7; unaffected 0 before 4.7; unaffected 4.19.320 through 4.19.*; unaffected 5.4.282 through 5.4.*; unaffected 5.10.224 through 5.10.*; unaffected 5.15.165 through 5.15.*; unaffected 6.1.105 through 6.1.*; unaffected 6.6.46 through 6.6.*; unaffected 6.10.5 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91c
- https://git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18
- https://git.kernel.org/stable/c/eb223bf01e688dfe37e813c8988ee11c8c9f8d0a
- https://git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698da
- https://git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5
- https://git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8
- https://git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6
- https://git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
No English description supplied.