Riskcovery

CVE-2025-37966

riscv: Fix kernel crash due to PR_SET_TAGGED_ADDR_CTRL

State
Published
Severity
Not scored
Published
May 20, 2025
Updated
May 11, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

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

riscv: Fix kernel crash due to PR_SET_TAGGED_ADDR_CTRL

When userspace does PR_SET_TAGGED_ADDR_CTRL, but Supm extension is not available, the kernel crashes:

Oops - illegal instruction [#1] [snip] epc : set_tagged_addr_ctrl+0x112/0x15a ra : set_tagged_addr_ctrl+0x74/0x15a epc : ffffffff80011ace ra : ffffffff80011a30 sp : ffffffc60039be10 [snip] status: 0000000200000120 badaddr: 0000000010a79073 cause: 0000000000000002 set_tagged_addr_ctrl+0x112/0x15a __riscv_sys_prctl+0x352/0x73c do_trap_ecall_u+0x17c/0x20c andle_exception+0x150/0x15c

Fix it by checking if Supm is available.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 09d6775f503b393d0457c7126aa43208e1724004 to before 4b595a2f5656cd45d534ed2160c94f7662adefe5Affected
  • 09d6775f503b393d0457c7126aa43208e1724004 to before ae08d55807c099357c047dba17624b09414635ddAffected
LinuxLinux
  • 6.13Affected
  • before 6.13Not affected
  • 6.14.7 through 6.14.*Not affected
  • 6.15 and laterNot affected

References

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