vulnerability

Debian: CVE-2022-50225: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Jun 20, 2025
Added
Jun 20, 2025
Modified
Nov 20, 2025

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 insn,and 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 function,It 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-virtio,qemu (DT)
[ 31.686797] Call Trace:
[ 31.687053] [<ffffffff80006442>] dump_backtrace+0x30/0x38
[ 31.687699] [<ffffffff80812118>] show_stack+0x40/0x4c
[ 31.688141] [<ffffffff8081817a>] dump_stack_lvl+0x44/0x5c
[ 31.688396] [<ffffffff808181aa>] dump_stack+0x18/0x20
[ 31.688653] [<ffffffff8003e454>] __might_resched+0x114/0x122
[ 31.688948] [<ffffffff8003e4b2>] __might_sleep+0x50/0x7a
[ 31.689435] [<ffffffff80822676>] down_read+0x30/0x130
[ 31.689728] [<ffffffff8000b650>] do_page_fault+0x166/x446
[ 31.689997] [<ffffffff80003c0c>] ret_from_exception+0x0/0xc

Solution

debian-upgrade-linux
Title
NEW

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