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CVE-2024-36916 (GCVE-0-2024-36916)

Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2026-05-12 11:54
VLAI
Title
blk-iocost: avoid out of bounds shift
Summary
In the Linux kernel, the following vulnerability has been resolved: blk-iocost: avoid out of bounds shift UBSAN catches undefined behavior in blk-iocost, where sometimes iocg->delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. [ 186.556576] ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S E N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020 Call Trace: <IRQ> dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x1f80 __run_timer_base+0x1b6/0x250 ... Avoid that undefined behavior by simply taking the "delay = 0" branch if the shift is too large. I am not sure what the symptoms of an undefined value delay will be, but I suspect it could be more than a little annoying to debug.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-12 19:19 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 5160a5a53c0c4ae3708959d9465ea43ad5d90542 , < 62accf6c1d7b433752cb3591bba8967b7a801ad5 (git)
Affected: 5160a5a53c0c4ae3708959d9465ea43ad5d90542 , < 844fc023e9f14a4fb1de5ae1eaefafd6d69c5fa1 (git)
Affected: 5160a5a53c0c4ae3708959d9465ea43ad5d90542 , < f6add0a6f78dc6360b822ca4b6f9f2f14174c8ca (git)
Affected: 5160a5a53c0c4ae3708959d9465ea43ad5d90542 , < ce0e99cae00e3131872936713b7f55eefd53ab86 (git)
Affected: 5160a5a53c0c4ae3708959d9465ea43ad5d90542 , < 488dc6808cb8369685f18cee81e88e7052ac153b (git)
Affected: 5160a5a53c0c4ae3708959d9465ea43ad5d90542 , < beaa51b36012fad5a4d3c18b88a617aea7a9b96d (git)
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Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.217 , ≤ 5.10.* (semver)
Unaffected: 5.15.159 , ≤ 5.15.* (semver)
Unaffected: 6.1.91 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (custom)
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Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.1 (custom)
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-36916\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-30T16:15:14.963\",\"lastModified\":\"2026-06-17T07:37:21.297\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nblk-iocost: avoid out of bounds shift\\n\\nUBSAN catches undefined behavior in blk-iocost, where sometimes\\niocg-\u003edelay is shifted right by a number that is too large,\\nresulting in undefined behavior on some architectures.\\n\\n[  186.556576] ------------[ cut here ]------------\\nUBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23\\nshift exponent 64 is too large for 64-bit type \u0027u64\u0027 (aka \u0027unsigned long long\u0027)\\nCPU: 16 PID: 0 Comm: swapper/16 Tainted: G S          E    N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1\\nHardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020\\nCall Trace:\\n \u003cIRQ\u003e\\n dump_stack_lvl+0x8f/0xe0\\n __ubsan_handle_shift_out_of_bounds+0x22c/0x280\\n iocg_kick_delay+0x30b/0x310\\n ioc_timer_fn+0x2fb/0x1f80\\n __run_timer_base+0x1b6/0x250\\n...\\n\\nAvoid that undefined behavior by simply taking the\\n\\\"delay = 0\\\" branch if the shift is too large.\\n\\nI am not sure what the symptoms of an undefined value\\ndelay will be, but I suspect it could be more than a\\nlittle annoying to debug.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: blk-iocost: evita cambios fuera de los l\u00edmites UBSAN detecta un comportamiento indefinido en blk-iocost, donde a veces iocg-\u0026gt;delay se desplaza hacia la derecha en un n\u00famero demasiado grande, lo que resulta en un estado indefinido. comportamiento en algunas arquitecturas. [186.556576] ------------[ cortar aqu\u00ed ]------------ UBSAN: desplazamiento fuera de los l\u00edmites en block/blk-iocost.c:1366 :23 exponente de desplazamiento 64 es demasiado grande para el tipo de 64 bits \u0027u64\u0027 (tambi\u00e9n conocido como \u0027unsigned long long\u0027) CPU: 16 PID: 0 Comm: swapper/16 Tainted: GSEN 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Nombre de hardware: Quanta Twin Lakes MP/Twin Lakes MP pasivo, BIOS F09_3A23 08/12/2020 Seguimiento de llamadas:  dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x 1f80 __run_timer_base+0x1b6/0x250 ... Evitar ese comportamiento indefinido simplemente tomando la rama \\\"retraso = 0\\\" si el cambio es demasiado grande. No estoy seguro de cu\u00e1les ser\u00e1n los s\u00edntomas de un retraso de valor indefinido, pero sospecho que podr\u00eda ser m\u00e1s que molesto 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-01-22T21:11:45+00:00",
      "cve": "CVE-2024-36916",
      "id": "CVE-2024-36916",
      "initial_release_date": "2024-05-30T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: blk-iocost: avoid out of bounds shift",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-36916.json",
      "version": "3"
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      "current_release_date": "2026-08-30T02:35:26Z",
      "cve": "CVE-2024-36916",
      "id": "CVE-2024-36916",
      "initial_release_date": "2024-06-01T02:23:12Z",
      "product_status:known_affected": "419",
      "product_status:known_not_affected": "237",
      "product_status:recommended": "651",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-36916",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-36916.json",
      "version": "84"
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\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-09-05T08:03:32.685Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-36916\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-12T19:19:24.548838Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"description\": \"CWE-noinfo Not enough information\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-12T19:19:30.921Z\"}}], \"cna\": {\"title\": \"blk-iocost: avoid out of bounds shift\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5160a5a53c0c4ae3708959d9465ea43ad5d90542\", \"lessThan\": \"62accf6c1d7b433752cb3591bba8967b7a801ad5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5160a5a53c0c4ae3708959d9465ea43ad5d90542\", \"lessThan\": \"844fc023e9f14a4fb1de5ae1eaefafd6d69c5fa1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5160a5a53c0c4ae3708959d9465ea43ad5d90542\", \"lessThan\": \"f6add0a6f78dc6360b822ca4b6f9f2f14174c8ca\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5160a5a53c0c4ae3708959d9465ea43ad5d90542\", \"lessThan\": \"ce0e99cae00e3131872936713b7f55eefd53ab86\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5160a5a53c0c4ae3708959d9465ea43ad5d90542\", \"lessThan\": \"488dc6808cb8369685f18cee81e88e7052ac153b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5160a5a53c0c4ae3708959d9465ea43ad5d90542\", \"lessThan\": \"beaa51b36012fad5a4d3c18b88a617aea7a9b96d\", \"versionType\": \"git\"}], \"programFiles\": [\"block/blk-iocost.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.217\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.91\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.31\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"block/blk-iocost.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/62accf6c1d7b433752cb3591bba8967b7a801ad5\"}, {\"url\": \"https://git.kernel.org/stable/c/844fc023e9f14a4fb1de5ae1eaefafd6d69c5fa1\"}, {\"url\": \"https://git.kernel.org/stable/c/f6add0a6f78dc6360b822ca4b6f9f2f14174c8ca\"}, {\"url\": \"https://git.kernel.org/stable/c/ce0e99cae00e3131872936713b7f55eefd53ab86\"}, {\"url\": \"https://git.kernel.org/stable/c/488dc6808cb8369685f18cee81e88e7052ac153b\"}, {\"url\": \"https://git.kernel.org/stable/c/beaa51b36012fad5a4d3c18b88a617aea7a9b96d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nblk-iocost: avoid out of bounds shift\\n\\nUBSAN catches undefined behavior in blk-iocost, where sometimes\\niocg-\u003edelay is shifted right by a number that is too large,\\nresulting in undefined behavior on some architectures.\\n\\n[  186.556576] ------------[ cut here ]------------\\nUBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23\\nshift exponent 64 is too large for 64-bit type \u0027u64\u0027 (aka \u0027unsigned long long\u0027)\\nCPU: 16 PID: 0 Comm: swapper/16 Tainted: G S          E    N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1\\nHardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020\\nCall Trace:\\n \u003cIRQ\u003e\\n dump_stack_lvl+0x8f/0xe0\\n __ubsan_handle_shift_out_of_bounds+0x22c/0x280\\n iocg_kick_delay+0x30b/0x310\\n ioc_timer_fn+0x2fb/0x1f80\\n __run_timer_base+0x1b6/0x250\\n...\\n\\nAvoid that undefined behavior by simply taking the\\n\\\"delay = 0\\\" branch if the shift is too large.\\n\\nI am not sure what the symptoms of an undefined value\\ndelay will be, but I suspect it could be more than a\\nlittle annoying to debug.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.217\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.159\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.91\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.31\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.10\", \"versionStartIncluding\": \"5.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"5.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-20T14:27:33.761Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-36916\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-20T14:27:33.761Z\", \"dateReserved\": \"2024-05-30T15:25:07.068Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-30T15:29:12.745Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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

Author Source Type Date Other

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.


Related by attack behaviour

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.