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CVE-2022-50504 (GCVE-0-2022-50504)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:43 – Updated: 2026-05-11 19:20
VLAI
Title
powerpc/rtas: avoid scheduling in rtas_os_term()
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < f413135b337c4e90c1e593c6613f8717e17bc724 (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < 4768935b8cc2d2afeb7956292df0f6e2c49ca0a5 (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < ffa991a003abb4f8cb9e5004646bfe2d9a46912c (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < 515959eb49e6d218a46979d66f36fdef329ac7d2 (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < 6f7e2fcab73372a371ab4017cbedf7a71f4f9b40 (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < 7280fdb80bf0fe35d9b799fc7009f2cbe0a397d7 (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < bed48651c87bef59ea1a9d6dbc381bcbc452f4ff (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < 482d990a5dd1027ee0b70a8a570d56749cac8103 (git)
Affected: 507279db1819aacf4022e790b3fc8bc8cf56debf , < 6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4 (git)
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Linux Linux Affected: 2.6.18
Unaffected: 0 , < 2.6.18 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.87 , ≤ 5.15.* (semver)
Unaffected: 6.0.17 , ≤ 6.0.* (semver)
Unaffected: 6.1.3 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/rtas: avoid scheduling in rtas_os_term()\n\nIt\u0027s unsafe to use rtas_busy_delay() to handle a busy status from\nthe ibm,os-term RTAS function in rtas_os_term():\n\nKernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b\nBUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:618\nin_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0\npreempt_count: 2, expected: 0\nCPU: 7 PID: 1 Comm: swapper/0 Tainted: G      D            6.0.0-rc5-02182-gf8553a572277-dirty #9\nCall Trace:\n[c000000007b8f000] [c000000001337110] dump_stack_lvl+0xb4/0x110 (unreliable)\n[c000000007b8f040] [c0000000002440e4] __might_resched+0x394/0x3c0\n[c000000007b8f0e0] [c00000000004f680] rtas_busy_delay+0x120/0x1b0\n[c000000007b8f100] [c000000000052d04] rtas_os_term+0xb8/0xf4\n[c000000007b8f180] [c0000000001150fc] pseries_panic+0x50/0x68\n[c000000007b8f1f0] [c000000000036354] ppc_panic_platform_handler+0x34/0x50\n[c000000007b8f210] [c0000000002303c4] notifier_call_chain+0xd4/0x1c0\n[c000000007b8f2b0] [c0000000002306cc] atomic_notifier_call_chain+0xac/0x1c0\n[c000000007b8f2f0] [c0000000001d62b8] panic+0x228/0x4d0\n[c000000007b8f390] [c0000000001e573c] do_exit+0x140c/0x1420\n[c000000007b8f480] [c0000000001e586c] make_task_dead+0xdc/0x200\n\nUse rtas_busy_delay_time() instead, which signals without side effects\nwhether to attempt the ibm,os-term RTAS call again."
        }
      ],
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        "dateUpdated": "2026-05-11T19:20:42.680Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/f413135b337c4e90c1e593c6613f8717e17bc724"
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          "url": "https://git.kernel.org/stable/c/6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4"
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      "title": "powerpc/rtas: avoid scheduling in rtas_os_term()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50504",
    "datePublished": "2025-10-04T15:43:53.523Z",
    "dateReserved": "2025-10-04T15:39:19.465Z",
    "dateUpdated": "2026-05-11T19:20:42.680Z",
    "state": "PUBLISHED"
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      "cve": "CVE-2022-50504",
      "date": "2026-09-17",
      "epss": "0.0016",
      "percentile": "0.0554"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50504\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-04T16:15:47.607\",\"lastModified\":\"2026-06-17T05:23:40.930\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\npowerpc/rtas: avoid scheduling in rtas_os_term()\\n\\nIt\u0027s unsafe to use rtas_busy_delay() to handle a busy status from\\nthe ibm,os-term RTAS function in rtas_os_term():\\n\\nKernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b\\nBUG: sleeping function called from invalid context at arch/powerpc/kernel/rtas.c:618\\nin_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0\\npreempt_count: 2, expected: 0\\nCPU: 7 PID: 1 Comm: swapper/0 Tainted: G      D            6.0.0-rc5-02182-gf8553a572277-dirty #9\\nCall Trace:\\n[c000000007b8f000] [c000000001337110] dump_stack_lvl+0xb4/0x110 (unreliable)\\n[c000000007b8f040] [c0000000002440e4] __might_resched+0x394/0x3c0\\n[c000000007b8f0e0] [c00000000004f680] rtas_busy_delay+0x120/0x1b0\\n[c000000007b8f100] [c000000000052d04] rtas_os_term+0xb8/0xf4\\n[c000000007b8f180] [c0000000001150fc] pseries_panic+0x50/0x68\\n[c000000007b8f1f0] [c000000000036354] ppc_panic_platform_handler+0x34/0x50\\n[c000000007b8f210] [c0000000002303c4] notifier_call_chain+0xd4/0x1c0\\n[c000000007b8f2b0] [c0000000002306cc] atomic_notifier_call_chain+0xac/0x1c0\\n[c000000007b8f2f0] [c0000000001d62b8] panic+0x228/0x4d0\\n[c000000007b8f390] [c0000000001e573c] do_exit+0x140c/0x1420\\n[c000000007b8f480] [c0000000001e586c] make_task_dead+0xdc/0x200\\n\\nUse rtas_busy_delay_time() instead, which signals without side effects\\nwhether to attempt the ibm,os-term RTAS call again.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"arch/powerpc/kernel/rtas.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"f413135b337c4e90c1e593c6613f8717e17bc724\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"4768935b8cc2d2afeb7956292df0f6e2c49ca0a5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"ffa991a003abb4f8cb9e5004646bfe2d9a46912c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"515959eb49e6d218a46979d66f36fdef329ac7d2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"6f7e2fcab73372a371ab4017cbedf7a71f4f9b40\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"7280fdb80bf0fe35d9b799fc7009f2cbe0a397d7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"bed48651c87bef59ea1a9d6dbc381bcbc452f4ff\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"482d990a5dd1027ee0b70a8a570d56749cac8103\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"507279db1819aacf4022e790b3fc8bc8cf56debf\",\"lessThan\":\"6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"arch/powerpc/kernel/rtas.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.18\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.18\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.9.337\",\"lessThanOrEqual\":\"4.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.303\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.270\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.229\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.163\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.87\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0.17\",\"lessThanOrEqual\":\"6.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.3\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.18\",\"versionEndExcluding\":\"4.9.337\",\"matchCriteriaId\":\"7C467503-F0C8-433A-9134-93F5DCCFA53D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.303\",\"matchCriteriaId\":\"1E7450AD-4739-46F0-B81B-C02E7B35A97B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.270\",\"matchCriteriaId\":\"AE8904A3-99BE-4E49-9682-1F90A6373F4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.229\",\"matchCriteriaId\":\"A0C0D95E-414A-445E-941B-3EF6A4D3A093\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.163\",\"matchCriteriaId\":\"D05D31FC-BD74-4F9E-B1D8-9CED62BE6F65\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.87\",\"matchCriteriaId\":\"7B9E5B1C-CD46-4790-9500-615863850401\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.17\",\"matchCriteriaId\":\"05B2AE8A-556C-47C1-9119-DBAC5EB60947\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1\",\"versionEndExcluding\":\"6.1.3\",\"matchCriteriaId\":\"70594F60-3413-4969-AFD7-965266760EA6\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4768935b8cc2d2afeb7956292df0f6e2c49ca0a5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/482d990a5dd1027ee0b70a8a570d56749cac8103\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/515959eb49e6d218a46979d66f36fdef329ac7d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6c606e57eecc37d6b36d732b1ff7e55b7dc32dd4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/6f7e2fcab73372a371ab4017cbedf7a71f4f9b40\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7280fdb80bf0fe35d9b799fc7009f2cbe0a397d7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bed48651c87bef59ea1a9d6dbc381bcbc452f4ff\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f413135b337c4e90c1e593c6613f8717e17bc724\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ffa991a003abb4f8cb9e5004646bfe2d9a46912c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:24:53+00:00",
      "cve": "CVE-2022-50504",
      "id": "CVE-2022-50504",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "303",
      "product_status:known_affected": "98",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: powerpc/rtas: avoid scheduling in rtas_os_term()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50504.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.