CVE-2022-50504

MEDIUM EPSS 4.2%
Published Oct 4, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 4, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: avoid scheduling in rtas_os_term() It's unsafe to use rtas_busy_delay() to handle a busy status from the ibm,os-term RTAS function in rtas_os_term(): Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b BUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:618 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0 preempt_count: 2, expected: 0 CPU: 7 PID: 1 Comm: swapper/0 Tainted: G D 6.0.0-rc5-02182-gf8553a572277-dirty #9 Call Trace: [c000000007b8f000] [c000000001337110] dump_stack_lvl+0xb4/0x110 (unreliable) [c000000007b8f040] [c0000000002440e4] __might_resched+0x394/0x3c0 [c000000007b8f0e0] [c00000000004f680] rtas_busy_delay+0x120/0x1b0 [c000000007b8f100] [c000000000052d04] rtas_os_term+0xb8/0xf4 [c000000007b8f180] [c0000000001150fc] pseries_panic+0x50/0x68 [c000000007b8f1f0] [c000000000036354] ppc_panic_platform_handler+0x34/0x50 [c000000007b8f210] [c0000000002303c4] notifier_call_chain+0xd4/0x1c0 [c000000007b8f2b0] [c0000000002306cc] atomic_notifier_call_chain+0xac/0x1c0 [c000000007b8f2f0] [c0000000001d62b8] panic+0x228/0x4d0 [c000000007b8f390] [c0000000001e573c] do_exit+0x140c/0x1420 [c000000007b8f480] [c0000000001e586c] make_task_dead+0xdc/0x200 Use rtas_busy_delay_time() instead, which signals without side effects whether to attempt the ibm,os-term RTAS call again.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥2.6.18  –  <4.9.337
linuxlinux_kernel*≥4.10  –  <4.14.303
linuxlinux_kernel*≥4.15  –  <4.19.270
linuxlinux_kernel*≥4.20  –  <5.4.229
linuxlinux_kernel*≥5.5  –  <5.10.163
linuxlinux_kernel*≥5.11  –  <5.15.87
linuxlinux_kernel*≥5.16  –  <6.0.17
linuxlinux_kernel*≥6.1  –  <6.1.3

References 9

  • git.kernel.org https://git.kernel.org/stable/c/4768935b8cc2d2afeb7956292df0f6e2c49ca0a5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/482d990a5dd1027ee0b70a8a570d56749cac8103
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/515959eb49e6d218a46979d66f36fdef329ac7d2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f7e2fcab73372a371ab4017cbedf7a71f4f9b40
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7280fdb80bf0fe35d9b799fc7009f2cbe0a397d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bed48651c87bef59ea1a9d6dbc381bcbc452f4ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f413135b337c4e90c1e593c6613f8717e17bc724
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffa991a003abb4f8cb9e5004646bfe2d9a46912c
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/4768935b8cc2d2afeb7956292df0f6e2c49ca0a5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/482d990a5dd1027ee0b70a8a570d56749cac8103
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/515959eb49e6d218a46979d66f36fdef329ac7d2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6f7e2fcab73372a371ab4017cbedf7a71f4f9b40
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7280fdb80bf0fe35d9b799fc7009f2cbe0a397d7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bed48651c87bef59ea1a9d6dbc381bcbc452f4ff
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f413135b337c4e90c1e593c6613f8717e17bc724
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffa991a003abb4f8cb9e5004646bfe2d9a46912c
    Patch