CVE-2022-48922 (GCVE-0-2022-48922)
Vulnerability from cvelistv5 – Published: 2024-08-22 01:32 – Updated: 2026-05-11 18:49
VLAI
EPSS
VEX
Title
riscv: fix oops caused by irqsoff latency tracer
Summary
In the Linux kernel, the following vulnerability has been resolved:
riscv: fix oops caused by irqsoff latency tracer
The trace_hardirqs_{on,off}() require the caller to setup frame pointer
properly. This because these two functions use macro 'CALLER_ADDR1' (aka.
__builtin_return_address(1)) to acquire caller info. If the $fp is used
for other purpose, the code generated this macro (as below) could trigger
memory access fault.
0xffffffff8011510e <+80>: ld a1,-16(s0)
0xffffffff80115112 <+84>: ld s2,-8(a1) # <-- paging fault here
The oops message during booting if compiled with 'irqoff' tracer enabled:
[ 0.039615][ T0] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8
[ 0.041925][ T0] Oops [#1]
[ 0.042063][ T0] Modules linked in:
[ 0.042864][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc1-00233-g9a20c48d1ed2 #29
[ 0.043568][ T0] Hardware name: riscv-virtio,qemu (DT)
[ 0.044343][ T0] epc : trace_hardirqs_on+0x56/0xe2
[ 0.044601][ T0] ra : restore_all+0x12/0x6e
[ 0.044721][ T0] epc : ffffffff80126a5c ra : ffffffff80003b94 sp : ffffffff81403db0
[ 0.044801][ T0] gp : ffffffff8163acd8 tp : ffffffff81414880 t0 : 0000000000000020
[ 0.044882][ T0] t1 : 0098968000000000 t2 : 0000000000000000 s0 : ffffffff81403de0
[ 0.044967][ T0] s1 : 0000000000000000 a0 : 0000000000000001 a1 : 0000000000000100
[ 0.045046][ T0] a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000
[ 0.045124][ T0] a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000054494d45
[ 0.045210][ T0] s2 : ffffffff80003b94 s3 : ffffffff81a8f1b0 s4 : ffffffff80e27b50
[ 0.045289][ T0] s5 : ffffffff81414880 s6 : ffffffff8160fa00 s7 : 00000000800120e8
[ 0.045389][ T0] s8 : 0000000080013100 s9 : 000000000000007f s10: 0000000000000000
[ 0.045474][ T0] s11: 0000000000000000 t3 : 7fffffffffffffff t4 : 0000000000000000
[ 0.045548][ T0] t5 : 0000000000000000 t6 : ffffffff814aa368
[ 0.045620][ T0] status: 0000000200000100 badaddr: 00000000000000f8 cause: 000000000000000d
[ 0.046402][ T0] [<ffffffff80003b94>] restore_all+0x12/0x6e
This because the $fp(aka. $s0) register is not used as frame pointer in the
assembly entry code.
resume_kernel:
REG_L s0, TASK_TI_PREEMPT_COUNT(tp)
bnez s0, restore_all
REG_L s0, TASK_TI_FLAGS(tp)
andi s0, s0, _TIF_NEED_RESCHED
beqz s0, restore_all
call preempt_schedule_irq
j restore_all
To fix above issue, here we add one extra level wrapper for function
trace_hardirqs_{on,off}() so they can be safely called by low level entry
code.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:33 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
3c46979829824da5af8766d89fa877976bdae884 , < 9e2dbc31e367d08ee299a0d8aeb498cb2e12a1c3
(git)
Affected: 3c46979829824da5af8766d89fa877976bdae884 , < 1851b9a467065b18ec2cba156eea345206df1c8f (git) Affected: 3c46979829824da5af8766d89fa877976bdae884 , < b5e180490db4af8c0f80c4b65ee482d333d0e8ee (git) Affected: 3c46979829824da5af8766d89fa877976bdae884 , < 22e2100b1b07d6f5acc71cc1acb53f680c677d77 (git) |
guessed | |
| Linux | Linux |
Affected:
5.9
Unaffected: 0 , < 5.9 (semver) Unaffected: 5.10.103 , ≤ 5.10.* (semver) Unaffected: 5.15.26 , ≤ 5.15.* (semver) Unaffected: 5.16.12 , ≤ 5.16.* (semver) Unaffected: 5.17 , ≤ * (original_commit_for_fix) |
guessed |
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: fix oops caused by irqsoff latency tracer\n\nThe trace_hardirqs_{on,off}() require the caller to setup frame pointer\nproperly. This because these two functions use macro \u0027CALLER_ADDR1\u0027 (aka.\n__builtin_return_address(1)) to acquire caller info. If the $fp is used\nfor other purpose, the code generated this macro (as below) could trigger\nmemory access fault.\n\n 0xffffffff8011510e \u003c+80\u003e: ld a1,-16(s0)\n 0xffffffff80115112 \u003c+84\u003e: ld s2,-8(a1) # \u003c-- paging fault here\n\nThe oops message during booting if compiled with \u0027irqoff\u0027 tracer enabled:\n[ 0.039615][ T0] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8\n[ 0.041925][ T0] Oops [#1]\n[ 0.042063][ T0] Modules linked in:\n[ 0.042864][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc1-00233-g9a20c48d1ed2 #29\n[ 0.043568][ T0] Hardware name: riscv-virtio,qemu (DT)\n[ 0.044343][ T0] epc : trace_hardirqs_on+0x56/0xe2\n[ 0.044601][ T0] ra : restore_all+0x12/0x6e\n[ 0.044721][ T0] epc : ffffffff80126a5c ra : ffffffff80003b94 sp : ffffffff81403db0\n[ 0.044801][ T0] gp : ffffffff8163acd8 tp : ffffffff81414880 t0 : 0000000000000020\n[ 0.044882][ T0] t1 : 0098968000000000 t2 : 0000000000000000 s0 : ffffffff81403de0\n[ 0.044967][ T0] s1 : 0000000000000000 a0 : 0000000000000001 a1 : 0000000000000100\n[ 0.045046][ T0] a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000\n[ 0.045124][ T0] a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000054494d45\n[ 0.045210][ T0] s2 : ffffffff80003b94 s3 : ffffffff81a8f1b0 s4 : ffffffff80e27b50\n[ 0.045289][ T0] s5 : ffffffff81414880 s6 : ffffffff8160fa00 s7 : 00000000800120e8\n[ 0.045389][ T0] s8 : 0000000080013100 s9 : 000000000000007f s10: 0000000000000000\n[ 0.045474][ T0] s11: 0000000000000000 t3 : 7fffffffffffffff t4 : 0000000000000000\n[ 0.045548][ T0] t5 : 0000000000000000 t6 : ffffffff814aa368\n[ 0.045620][ T0] status: 0000000200000100 badaddr: 00000000000000f8 cause: 000000000000000d\n[ 0.046402][ T0] [\u003cffffffff80003b94\u003e] restore_all+0x12/0x6e\n\nThis because the $fp(aka. $s0) register is not used as frame pointer in the\nassembly entry code.\n\n\tresume_kernel:\n\t\tREG_L s0, TASK_TI_PREEMPT_COUNT(tp)\n\t\tbnez s0, restore_all\n\t\tREG_L s0, TASK_TI_FLAGS(tp)\n andi s0, s0, _TIF_NEED_RESCHED\n beqz s0, restore_all\n call preempt_schedule_irq\n j restore_all\n\nTo fix above issue, here we add one extra level wrapper for function\ntrace_hardirqs_{on,off}() so they can be safely called by low level entry\ncode."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv: corrige los errores causados por el rastreador de latencia irqsoff trace_hardirqs_{on,off}() requiere que la persona que llama configure el puntero del marco correctamente. Esto se debe a que estas dos funciones utilizan la macro \u0027CALLER_ADDR1\u0027 (tambi\u00e9n conocida como __builtin_return_address(1)) para adquirir informaci\u00f3n de la persona que llama. Si $fp se usa para otro prop\u00f3sito, el c\u00f3digo generado en esta macro (como se muestra a continuaci\u00f3n) podr\u00eda provocar una falla de acceso a la memoria. 0xffffffff8011510e \u0026lt;+80\u0026gt;: ld a1,-16(s0) 0xffffffff80115112 \u0026lt;+84\u0026gt;: ld s2,-8(a1) # \u0026lt;-- error de paginaci\u00f3n aqu\u00ed El mensaje de ups durante el arranque si se compila con el rastreador \u0027irqoff\u0027 habilitado: [ 0.039615][T0] No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 00000000000000f8 [0.041925][T0] Ups [#1] [0.042063][T0] M\u00f3dulos vinculados en: [0.042864][T0] CPU: 0 PID: 0 Comm : swapper/0 No contaminado 5.17.0-rc1-00233-g9a20c48d1ed2 #29 [ 0.043568][ T0] Nombre de hardware: riscv-virtio,qemu (DT) [ 0.044343][ T0] epc : trace_hardirqs_on+0x56/0xe2 [ 0.044601] [T0] ra: restaurar_all+0x12/0x6e [0.044721][T0] epc: ffffffff80126a5c ra: ffffffff80003b94 sp: ffffffff81403db0 [0.044801][T0] gp: ffffffff8163acd8 tp: ffffffff81414880 t0: 0000000000000020 [0.044882][T0] t1: 0098968000000000 t2 : 0000000000000000 s0 : ffffffff81403de0 [ 0.044967][ T0] s1 : 0000000000000000 a0 : 0000000000000001 a1 : 0000000000000100 [ 0.045046][ T0] a2: 0000000000000000 a3: 0000000000000000 a4: 0000000000000000 [0.045124][T0] a5: 00000000000000000 a6: 0000000000000000 a7: 000000 0054494d45 [ 0.045210][ T0] s2 : ffffffff80003b94 s3 : ffffffff81a8f1b0 s4 : ffffffff80e27b50 [ 0.045289][ T0] s5 : ffffffff81414880 s6 : ffffffff8160fa00 s7 : 00800120e8 [ 0.045389][ T0] s8 : 0000000080013100 s9 : 000000000000007f s10: 00000000000000000 [ 0.045474][ T0 ] s11: 0000000000000000 t3: 7ffffffffffffff t4: 0000000000000000 [0.045548][T0] t5: 0000000000000000 t6: ffffffff814aa368 [0.045620][T0] 0000000200000100 badaddr: 00000000000000f8 causa: 000000000000000d [ 0.046402][ T0] [] restaurar_todo+ 0x12/0x6e Esto porque el $fp(aka. $s0) el registro no se utiliza como puntero de marco en el c\u00f3digo de entrada del ensamblado. resume_kernel: reg_l s0, task_ti_preempt_count (tp) bnez s0, restaure_all reg_l s0, task_ti_flags (tp) andi s0, s0, _tif_need_resched beqz s0, restaure_all call preempt_schedul S_ { on,off}() para que puedan ser llamados de forma segura mediante un c\u00f3digo de entrada de bajo nivel."
}
],
"id": "CVE-2022-48922",
"lastModified": "2024-09-12T12:52:54.023",
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{
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
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"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
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"source": "nvd@nist.gov",
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"published": "2024-08-22T02:15:08.267",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: fix oops caused by irqsoff latency tracer\n\nThe trace_hardirqs_{on,off}() require the caller to setup frame pointer\nproperly. This because these two functions use macro \u0027CALLER_ADDR1\u0027 (aka.\n__builtin_return_address(1)) to acquire caller info. If the $fp is used\nfor other purpose, the code generated this macro (as below) could trigger\nmemory access fault.\n\n 0xffffffff8011510e \u003c+80\u003e: ld a1,-16(s0)\n 0xffffffff80115112 \u003c+84\u003e: ld s2,-8(a1) # \u003c-- paging fault here\n\nThe oops message during booting if compiled with \u0027irqoff\u0027 tracer enabled:\n[ 0.039615][ T0] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8\n[ 0.041925][ T0] Oops [#1]\n[ 0.042063][ T0] Modules linked in:\n[ 0.042864][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc1-00233-g9a20c48d1ed2 #29\n[ 0.043568][ T0] Hardware name: riscv-virtio,qemu (DT)\n[ 0.044343][ T0] epc : trace_hardirqs_on+0x56/0xe2\n[ 0.044601][ T0] ra : restore_all+0x12/0x6e\n[ 0.044721][ T0] epc : ffffffff80126a5c ra : ffffffff80003b94 sp : ffffffff81403db0\n[ 0.044801][ T0] gp : ffffffff8163acd8 tp : ffffffff81414880 t0 : 0000000000000020\n[ 0.044882][ T0] t1 : 0098968000000000 t2 : 0000000000000000 s0 : ffffffff81403de0\n[ 0.044967][ T0] s1 : 0000000000000000 a0 : 0000000000000001 a1 : 0000000000000100\n[ 0.045046][ T0] a2 : 0000000000000000 a3 : 0000000000000000 a4 : 0000000000000000\n[ 0.045124][ T0] a5 : 0000000000000000 a6 : 0000000000000000 a7 : 0000000054494d45\n[ 0.045210][ T0] s2 : ffffffff80003b94 s3 : ffffffff81a8f1b0 s4 : ffffffff80e27b50\n[ 0.045289][ T0] s5 : ffffffff81414880 s6 : ffffffff8160fa00 s7 : 00000000800120e8\n[ 0.045389][ T0] s8 : 0000000080013100 s9 : 000000000000007f s10: 0000000000000000\n[ 0.045474][ T0] s11: 0000000000000000 t3 : 7fffffffffffffff t4 : 0000000000000000\n[ 0.045548][ T0] t5 : 0000000000000000 t6 : ffffffff814aa368\n[ 0.045620][ T0] status: 0000000200000100 badaddr: 00000000000000f8 cause: 000000000000000d\n[ 0.046402][ T0] [\u003cffffffff80003b94\u003e] restore_all+0x12/0x6e\n\nThis because the $fp(aka. $s0) register is not used as frame pointer in the\nassembly entry code.\n\n\tresume_kernel:\n\t\tREG_L s0, TASK_TI_PREEMPT_COUNT(tp)\n\t\tbnez s0, restore_all\n\t\tREG_L s0, TASK_TI_FLAGS(tp)\n andi s0, s0, _TIF_NEED_RESCHED\n beqz s0, restore_all\n call preempt_schedule_irq\n j restore_all\n\nTo fix above issue, here we add one extra level wrapper for function\ntrace_hardirqs_{on,off}() so they can be safely called by low level entry\ncode."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv: corrige los errores causados por el rastreador de latencia irqsoff trace_hardirqs_{on,off}() requiere que la persona que llama configure el puntero del marco correctamente. Esto se debe a que estas dos funciones utilizan la macro \u0027CALLER_ADDR1\u0027 (tambi\u00e9n conocida como __builtin_return_address(1)) para adquirir informaci\u00f3n de la persona que llama. Si $fp se usa para otro prop\u00f3sito, el c\u00f3digo generado en esta macro (como se muestra a continuaci\u00f3n) podr\u00eda provocar una falla de acceso a la memoria. 0xffffffff8011510e \u0026lt;+80\u0026gt;: ld a1,-16(s0) 0xffffffff80115112 \u0026lt;+84\u0026gt;: ld s2,-8(a1) # \u0026lt;-- error de paginaci\u00f3n aqu\u00ed El mensaje de ups durante el arranque si se compila con el rastreador \u0027irqoff\u0027 habilitado: [ 0.039615][T0] No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 00000000000000f8 [0.041925][T0] Ups [#1] [0.042063][T0] M\u00f3dulos vinculados en: [0.042864][T0] CPU: 0 PID: 0 Comm : swapper/0 No contaminado 5.17.0-rc1-00233-g9a20c48d1ed2 #29 [ 0.043568][ T0] Nombre de hardware: riscv-virtio,qemu (DT) [ 0.044343][ T0] epc : trace_hardirqs_on+0x56/0xe2 [ 0.044601] [T0] ra: restaurar_all+0x12/0x6e [0.044721][T0] epc: ffffffff80126a5c ra: ffffffff80003b94 sp: ffffffff81403db0 [0.044801][T0] gp: ffffffff8163acd8 tp: ffffffff81414880 t0: 0000000000000020 [0.044882][T0] t1: 0098968000000000 t2 : 0000000000000000 s0 : ffffffff81403de0 [ 0.044967][ T0] s1 : 0000000000000000 a0 : 0000000000000001 a1 : 0000000000000100 [ 0.045046][ T0] a2: 0000000000000000 a3: 0000000000000000 a4: 0000000000000000 [0.045124][T0] a5: 00000000000000000 a6: 0000000000000000 a7: 000000 0054494d45 [ 0.045210][ T0] s2 : ffffffff80003b94 s3 : ffffffff81a8f1b0 s4 : ffffffff80e27b50 [ 0.045289][ T0] s5 : ffffffff81414880 s6 : ffffffff8160fa00 s7 : 00800120e8 [ 0.045389][ T0] s8 : 0000000080013100 s9 : 000000000000007f s10: 00000000000000000 [ 0.045474][ T0 ] s11: 0000000000000000 t3: 7ffffffffffffff t4: 0000000000000000 [0.045548][T0] t5: 0000000000000000 t6: ffffffff814aa368 [0.045620][T0] 0000000200000100 badaddr: 00000000000000f8 causa: 000000000000000d [ 0.046402][ T0] [] restaurar_todo+ 0x12/0x6e Esto porque el $fp(aka. $s0) el registro no se utiliza como puntero de marco en el c\u00f3digo de entrada del ensamblado. resume_kernel: reg_l s0, task_ti_preempt_count (tp) bnez s0, restaure_all reg_l s0, task_ti_flags (tp) andi s0, s0, _tif_need_resched beqz s0, restaure_all call preempt_schedul S_ { on,off}() para que puedan ser llamados de forma segura mediante un c\u00f3digo de entrada de bajo nivel."
}
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-48922",
"datePublished": "2024-08-22T01:32:55.803Z",
"dateReserved": "2024-08-21T06:06:23.295Z",
"dateUpdated": "2024-09-12T17:33:00.926Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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