CVE-2024-36930 (GCVE-0-2024-36930)
Vulnerability from cvelistv5 – Published: 2024-05-30 15:29 – Updated: 2026-05-11 20:17
VLAI
EPSS
VEX
Title
spi: fix null pointer dereference within spi_sync
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: fix null pointer dereference within spi_sync
If spi_sync() is called with the non-empty queue and the same spi_message
is then reused, the complete callback for the message remains set while
the context is cleared, leading to a null pointer dereference when the
callback is invoked from spi_finalize_current_message().
With function inlining disabled, the call stack might look like this:
_raw_spin_lock_irqsave from complete_with_flags+0x18/0x58
complete_with_flags from spi_complete+0x8/0xc
spi_complete from spi_finalize_current_message+0xec/0x184
spi_finalize_current_message from spi_transfer_one_message+0x2a8/0x474
spi_transfer_one_message from __spi_pump_transfer_message+0x104/0x230
__spi_pump_transfer_message from __spi_transfer_message_noqueue+0x30/0xc4
__spi_transfer_message_noqueue from __spi_sync+0x204/0x248
__spi_sync from spi_sync+0x24/0x3c
spi_sync from mcp251xfd_regmap_crc_read+0x124/0x28c [mcp251xfd]
mcp251xfd_regmap_crc_read [mcp251xfd] from _regmap_raw_read+0xf8/0x154
_regmap_raw_read from _regmap_bus_read+0x44/0x70
_regmap_bus_read from _regmap_read+0x60/0xd8
_regmap_read from regmap_read+0x3c/0x5c
regmap_read from mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd]
mcp251xfd_alloc_can_err_skb [mcp251xfd] from mcp251xfd_irq+0x194/0xe70 [mcp251xfd]
mcp251xfd_irq [mcp251xfd] from irq_thread_fn+0x1c/0x78
irq_thread_fn from irq_thread+0x118/0x1f4
irq_thread from kthread+0xd8/0xf4
kthread from ret_from_fork+0x14/0x28
Fix this by also setting message->complete to NULL when the transfer is
complete.
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 17:15 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
ae7d2346dc89ae89a6e0aabe6037591a11e593c0 , < e005d6754e3e440257006795b687c4ad8733b493
(git)
Affected: ae7d2346dc89ae89a6e0aabe6037591a11e593c0 , < a30659f1576d2c8e62e7426232bb18b885fd951a (git) Affected: ae7d2346dc89ae89a6e0aabe6037591a11e593c0 , < 2070d008cc08bff50a58f0f4d30f12d3ebf94c00 (git) Affected: ae7d2346dc89ae89a6e0aabe6037591a11e593c0 , < 4756fa529b2f12b7cb8f21fe229b0f6f47190829 (git) |
guessed | |
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (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) |
guessed |
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: corrige la desreferencia del puntero nulo dentro de spi_sync Si se llama a spi_sync() con la cola no vac\u00eda y luego se reutiliza el mismo spi_message, la devoluci\u00f3n de llamada completa para el mensaje permanece configurada mientras el el contexto se borra, lo que lleva a una desreferencia del puntero nulo cuando se invoca la devoluci\u00f3n de llamada desde spi_finalize_current_message(). Con la funci\u00f3n incorporada deshabilitada, la pila de llamadas podr\u00eda verse as\u00ed: _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58 complete_with_flags from spi_complete+0x8/0xc spi_complete from spi_finalize_current_message+0xec/0x184 spi_finalize_current_message from spi_transfer_one_message+0x2 a8/0x474 spi_transfer_one_message de __spi_pump_transfer_message+0x104/0x230 __spi_pump_transfer_message de __spi_transfer_message_noqueue+0x30/0xc4 __spi_transfer_message_noqueue de __spi_sync+0x204/0x248 __spi_sync de spi_sync+0x24/0x3c spi_sync de mcp251xfd_regmap_crc_read+0x124/0x28c fd] mcp251xfd_regmap_crc_read [mcp251xfd] de _regmap_raw_read+0xf8/0x154 _regmap_raw_read de _regmap_bus_read+0x44/0x70 _regmap_bus_read de _regmap_read+ 0x60/0xd8 _regmap_read de regmap_read+0x3c/0x5c regmap_read de mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd] mcp251xfd_alloc_can_err_skb [mcp251xfd] de mcp251xfd_irq+0x19 4/0xe70 [mcp251xfd] mcp251xfd_irq [mcp251xfd] de irq_thread_fn+0x1c/0x78 irq_thread_fn de irq_thread+0x118/0x1f4 irq_thread de kthread+0xd8/0xf4 kthread de ret_from_fork+0x14/0x28 Solucione este problema configurando tambi\u00e9n mensaje-\u0026gt;completo en NULL cuando se complete la transferencia."
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix null pointer dereference within spi_sync\n\nIf spi_sync() is called with the non-empty queue and the same spi_message\nis then reused, the complete callback for the message remains set while\nthe context is cleared, leading to a null pointer dereference when the\ncallback is invoked from spi_finalize_current_message().\n\nWith function inlining disabled, the call stack might look like this:\n\n _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58\n complete_with_flags from spi_complete+0x8/0xc\n spi_complete from spi_finalize_current_message+0xec/0x184\n spi_finalize_current_message from spi_transfer_one_message+0x2a8/0x474\n spi_transfer_one_message from __spi_pump_transfer_message+0x104/0x230\n __spi_pump_transfer_message from __spi_transfer_message_noqueue+0x30/0xc4\n __spi_transfer_message_noqueue from __spi_sync+0x204/0x248\n __spi_sync from spi_sync+0x24/0x3c\n spi_sync from mcp251xfd_regmap_crc_read+0x124/0x28c [mcp251xfd]\n mcp251xfd_regmap_crc_read [mcp251xfd] from _regmap_raw_read+0xf8/0x154\n _regmap_raw_read from _regmap_bus_read+0x44/0x70\n _regmap_bus_read from _regmap_read+0x60/0xd8\n _regmap_read from regmap_read+0x3c/0x5c\n regmap_read from mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd]\n mcp251xfd_alloc_can_err_skb [mcp251xfd] from mcp251xfd_irq+0x194/0xe70 [mcp251xfd]\n mcp251xfd_irq [mcp251xfd] from irq_thread_fn+0x1c/0x78\n irq_thread_fn from irq_thread+0x118/0x1f4\n irq_thread from kthread+0xd8/0xf4\n kthread from ret_from_fork+0x14/0x28\n\nFix this by also setting message-\u003ecomplete to NULL when the transfer is\ncomplete."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: corrige la desreferencia del puntero nulo dentro de spi_sync Si se llama a spi_sync() con la cola no vac\u00eda y luego se reutiliza el mismo spi_message, la devoluci\u00f3n de llamada completa para el mensaje permanece configurada mientras el el contexto se borra, lo que lleva a una desreferencia del puntero nulo cuando se invoca la devoluci\u00f3n de llamada desde spi_finalize_current_message(). Con la funci\u00f3n incorporada deshabilitada, la pila de llamadas podr\u00eda verse as\u00ed: _raw_spin_lock_irqsave from complete_with_flags+0x18/0x58 complete_with_flags from spi_complete+0x8/0xc spi_complete from spi_finalize_current_message+0xec/0x184 spi_finalize_current_message from spi_transfer_one_message+0x2 a8/0x474 spi_transfer_one_message de __spi_pump_transfer_message+0x104/0x230 __spi_pump_transfer_message de __spi_transfer_message_noqueue+0x30/0xc4 __spi_transfer_message_noqueue de __spi_sync+0x204/0x248 __spi_sync de spi_sync+0x24/0x3c spi_sync de mcp251xfd_regmap_crc_read+0x124/0x28c fd] mcp251xfd_regmap_crc_read [mcp251xfd] de _regmap_raw_read+0xf8/0x154 _regmap_raw_read de _regmap_bus_read+0x44/0x70 _regmap_bus_read de _regmap_read+ 0x60/0xd8 _regmap_read de regmap_read+0x3c/0x5c regmap_read de mcp251xfd_alloc_can_err_skb+0x1c/0x54 [mcp251xfd] mcp251xfd_alloc_can_err_skb [mcp251xfd] de mcp251xfd_irq+0x19 4/0xe70 [mcp251xfd] mcp251xfd_irq [mcp251xfd] de irq_thread_fn+0x1c/0x78 irq_thread_fn de irq_thread+0x118/0x1f4 irq_thread de kthread+0xd8/0xf4 kthread de ret_from_fork+0x14/0x28 Solucione este problema configurando tambi\u00e9n mensaje-\u0026gt;completo en NULL cuando se complete la transferencia."
}
],
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"lastModified": "2026-06-17T07:37:23.250",
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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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