# CVE-2023-52978: linux: In the Linux kernel, the following vulnerability has been resolved:  riscv: kprobe: Fixup kernel panic when probing a...

CVE-2023-52978 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52978, released March 27, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-52978
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 27, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  riscv: kprobe: Fixup kernel panic when probing an illegal position  The kernel would panic when probed for an illegal position. eg:  (CONFIG_RISCV_ISA_C=n)  echo 'p:hello kernel_clone+0x16 a0=%a0' >> kprobe_events echo 1 > events/kprobes/hello/enable cat trace  Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __do_sys_newfstatat+0xb8/0xb8 CPU: 0 PID: 111 Comm: sh Not tainted 6.2.0-rc1-00027-g2d398fe49a4d #490 Hardware name: riscv-virtio,qemu (DT) Call Trace: [<ffffffff80007268>] dump_backtrace+0x38/0x48 [<ffffffff80c5e83c>] show_stack+0x50/0x68 [<ffffffff80c6da28>] dump_stack_lvl+0x60/0x84 [<ffffffff80c6da6c>] dump_stack+0x20/0x30 [<ffffffff80c5ecf4>] panic+0x160/0x374 [<ffffffff80c6db94>] generic_handle_arch_irq+0x0/0xa8 [<ffffffff802deeb0>] sys_newstat+0x0/0x30 [<ffffffff800158c0>] sys_clone+0x20/0x30 [<ffffffff800039e8>] ret_from_syscall+0x0/0x4 ---[ end Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __do_sys_newfstatat+0xb8/0xb8 ]---  That is because the kprobe's ebreak instruction broke the kernel's original code. The user should guarantee the correction of the probe position, but it couldn't make the kernel panic.  This patch adds arch_check_kprobe in arch_prepare_kprobe to prevent an illegal position (Such as the middle of an instruction).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.11-1 | [DEBIAN-CVE-2023-52978](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52978.md) | Mar 27, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.1.11-1 | [DEBIAN-CVE-2023-52978](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52978.md) | Mar 27, 2025 |
| Linux | linux Debian 14 | 6.1.11-1 | [DEBIAN-CVE-2023-52978](https://patchblox.com/security/data/fix/linux/debian-cve-2023-52978.md) | Mar 27, 2025 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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