Linux Kernel Tracing: Avoid map->ops->elt_free on elt_alloc failure
CVE-2026-64173 Published on July 19, 2026
tracing: Do not call map->ops->elt_free() if elt_alloc() fails
In the Linux kernel, the following vulnerability has been resolved:
tracing: Do not call map->ops->elt_free() if elt_alloc() fails
In paths where tracing_map_elt_alloc() failed to allocate objects,
the map->ops->elt_alloc() call was never successful. In this case,
map->ops->elt_free() should not be called.
Products Associated with CVE-2026-64173
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Affected Versions
Linux:- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below 49332e49ad5b20262cc719b03d4123b9362de701 is affected.
- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below b559a218eece132de0c58d444877b5627cbee524 is affected.
- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below b427e9f6d81c9341cba23ef92f860f99f830d91d is affected.
- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below f383cff9fb382139980bac1bcd3f3f5d59f68435 is affected.
- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below 1a150947f8480262a46c860f1acb9c6597ca7097 is affected.
- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below 798183376d9d3e278a270ea0e75a5769c8f145d9 is affected.
- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below b6723339736320b2e1784258ad4490cec7aac11a is affected.
- Version 2734b629525a9dae5bf217cbf0a9651da93d2108 and below 8f0f5c4fb9df0e19a341e0c6ed8dc4fda9124f03 is affected.
- Version 4.17 is affected.
- Before 4.17 is unaffected.
- Version 5.10.258, <= 5.10.* is unaffected.
- Version 5.15.209, <= 5.15.* is unaffected.
- Version 6.1.175, <= 6.1.* is unaffected.
- Version 6.6.142, <= 6.6.* is unaffected.
- Version 6.12.92, <= 6.12.* is unaffected.
- Version 6.18.34, <= 6.18.* is unaffected.
- Version 7.0.11, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.