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.
Metrics
Affected Vendors & Products
References
History
Thu, 22 May 2025 02:45:00 +0000
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threat_severity
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cvssV3_1
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Tue, 20 May 2025 17:00:00 +0000
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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. | |
Title | riscv: Fix kernel crash due to PR_SET_TAGGED_ADDR_CTRL | |
References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-05-26T05:24:44.150Z
Reserved: 2025-04-16T04:51:23.974Z
Link: CVE-2025-37966

No data.

Status : Awaiting Analysis
Published: 2025-05-20T17:15:47.020
Modified: 2025-05-21T20:24:58.133
Link: CVE-2025-37966
