Vulnerability-Lookup

GHSA-GR3W-P7MM-8PCQ

Vulnerability from github – Published: 2024-08-08 09:30 – Updated: 2025-11-04 00:31

Details

In the Linux kernel, the following vulnerability has been resolved:

gpio: pca953x: fix pca953x_irq_bus_sync_unlock race

Ensure that `i2c_lock' is held when setting interrupt latch and mask in pca953x_irq_bus_sync_unlock() in order to avoid races.

The other (non-probe) call site pca953x_gpio_set_multiple() ensures the lock is held before calling pca953x_write_regs().

The problem occurred when a request raced against irq_bus_sync_unlock() approximately once per thousand reboots on an i.MX8MP based system.

Normal case

0-0022: write register AI|3a {03,02,00,00,01} Input latch P0 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|12 {fc,00,00,00,00} Config P3

Race case

0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register *** 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0

Severity ?

4.7 (Medium)


                  
                    CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42253"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-08T09:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: pca953x: fix pca953x_irq_bus_sync_unlock race\n\nEnsure that `i2c_lock\u0027 is held when setting interrupt latch and mask in\npca953x_irq_bus_sync_unlock() in order to avoid races.\n\nThe other (non-probe) call site pca953x_gpio_set_multiple() ensures the\nlock is held before calling pca953x_write_regs().\n\nThe problem occurred when a request raced against irq_bus_sync_unlock()\napproximately once per thousand reboots on an i.MX8MP based system.\n\n * Normal case\n\n   0-0022: write register AI|3a {03,02,00,00,01} Input latch P0\n   0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0\n   0-0022: write register AI|08 {ff,00,00,00,00} Output P3\n   0-0022: write register AI|12 {fc,00,00,00,00} Config P3\n\n * Race case\n\n   0-0022: write register AI|08 {ff,00,00,00,00} Output P3\n   0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register ***\n   0-0022: write register AI|12 {fc,00,00,00,00} Config P3\n   0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0",
  "id": "GHSA-gr3w-p7mm-8pcq",
  "modified": "2025-11-04T00:31:11Z",
  "published": "2024-08-08T09:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42253"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58a5c93bd1a6e949267400080f07e57ffe05ec34"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfc6444b57dc7186b6acc964705d7516cbaf3904"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de7cffa53149c7b48bd1bb29b02390c9f05b7f41"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2ecdddca80dd845df42376e4b0197fe97018ba2"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-42253 (GCVE-0-2024-42253)

Vulnerability from cvelistv5 – Published: 2024-08-08 08:46 – Updated: 2026-01-05 10:52

Title

gpio: pca953x: fix pca953x_irq_bus_sync_unlock race

Summary

In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race Ensure that `i2c_lock' is held when setting interrupt latch and mask in pca953x_irq_bus_sync_unlock() in order to avoid races. The other (non-probe) call site pca953x_gpio_set_multiple() ensures the lock is held before calling pca953x_write_regs(). The problem occurred when a request raced against irq_bus_sync_unlock() approximately once per thousand reboots on an i.MX8MP based system. * Normal case 0-0022: write register AI|3a {03,02,00,00,01} Input latch P0 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 * Race case 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register *** 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/58a5c93bd1a6e9492…
	https://git.kernel.org/stable/c/e2ecdddca80dd845d…
	https://git.kernel.org/stable/c/de7cffa53149c7b48…
	https://git.kernel.org/stable/c/bfc6444b57dc7186b…

Impacted products

Vendor

Product

Version

Linux

Affected: 44896beae605b93f2232301befccb7ef42953198 , < 58a5c93bd1a6e949267400080f07e57ffe05ec34 (git)
Affected: 44896beae605b93f2232301befccb7ef42953198 , < e2ecdddca80dd845df42376e4b0197fe97018ba2 (git)
Affected: 44896beae605b93f2232301befccb7ef42953198 , < de7cffa53149c7b48bd1bb29b02390c9f05b7f41 (git)
Affected: 44896beae605b93f2232301befccb7ef42953198 , < bfc6444b57dc7186b6acc964705d7516cbaf3904 (git)

Linux

Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 6.1.101 , ≤ 6.1.* (semver)
Unaffected: 6.6.42 , ≤ 6.6.* (semver)
Unaffected: 6.9.11 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)

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                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:13:09.580370Z",
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    "dateReserved": "2024-07-30T07:40:12.256Z",
    "dateUpdated": "2026-01-05T10:52:08.494Z",
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-GR3W-P7MM-8PCQ

CVE-2024-42253 (GCVE-0-2024-42253)

Tags

Sightings

Nomenclature