CVE-2022-50225 Information

Jun 19, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

riscv:uprobe fix SR_SPIE set/clear handling

In riscv the process of uprobe going to clear spie before exec the origin insnand set spie after that.But When access the page which origin insn has been placed a page fault may happen and irq was disabled in arch_uprobe_pre_xol functionIt cause a WARN as follows. There is no need to clear/set spie in arch_uprobe_pre/post/abort_xol. We can just remove it.

[ 31.684157] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1488 [ 31.684677] in_atomic(): 0 irqs_disabled(): 1 non_block: 0 pid: 76 name: work [ 31.684929] preempt_count: 0 expected: 0 [ 31.685969] CPU: 2 PID: 76 Comm: work Tainted: G [ 31.686542] Hardware name: riscv-virtioqemu (DT) [ 31.686797] Call Trace: [ 31.687053] [] dump_backtrace+0x30/0x38 [ 31.687699] [] show_stack+0x40/0x4c [ 31.688141] [] dump_stack_lvl+0x44/0x5c [ 31.688396] [] dump_stack+0x18/0x20 [ 31.688653] [] __might_resched+0x114/0x122 [ 31.688948] [] __might_sleep+0x50/0x7a [ 31.689435] [] down_read+0x30/0x130 [ 31.689728] [] do_page_fault+0x166/x446 [ 31.689997] [] ret_from_exception+0x0/0xc

Reference

https://git.kernel.org/stable/c/3811d51778900064d27d8c9a98f73410fb3b471d https://git.kernel.org/stable/c/3dbe5829408bc1586f75b4667ef60e5aab0209c7 https://git.kernel.org/stable/c/73fc099eaefd9a92c83b6c07dad066411fd5a192 https://git.kernel.org/stable/c/c71e000db8536d27ec410abb3e314896a78b4f19

CNNVD-202506-2517 (Published: 2025-06-18)

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