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THREAT OPS › Threat News › [NVD] CVE-2025-21778 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: tracing: Do not allow mmap() of persistent ring buffer When trying to mmap a trace instance buffer that is attached to reserve_mem, it would crash: BUG: unable to handle page fault for address: ffffe97bd00025

[NVD] CVE-2025-21778 (HIGH 7.8) — In the Linux kernel, the following vulnerability has been resolved: tracing: Do not allow mmap() of persistent ring buffer When trying to mmap a trace instance buffer that is attached to reserve_mem, it would crash: BUG: unable to handle page fault for address: ffffe97bd00025

lownvdPublished 2025-02-27

CVE-2025-21778 CVSS: 7.8 HIGH Published: 2025-02-27T03:15:18.533

In the Linux kernel, the following vulnerability has been resolved:

tracing: Do not allow mmap() of persistent ring buffer

When trying to mmap a trace instance buffer that is attached to reserve_mem, it would crash:

BUG: unable to handle page fault for address: ffffe97bd00025c8 #PF: supervisor read access in kernel mode #PF: e

Indicators of compromise

CVE-2025-21778cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-21778