CVE-2024-43890Medium· 5.5▾ SunlitIn 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 int…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
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".
linux_kernel >= 4.7, < 4.19.320linux_kernel >= 4.20, < 5.4.282linux_kernel >= 5.5, < 5.10.224linux_kernel >= 5.11, < 5.15.165linux_kernel >= 5.16, < 6.1.105linux_kernel >= 6.2, < 6.6.46linux_kernel >= 6.7, < 6.10.5linux_kernel = 6.11Upgrade past the affected range:
linux_kernel 6.10.5Connected by shared product, vendor, weakness, or advisory.
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