VulnSocial

CVE-2026-74733Patch

LOWCVSS 7.8 · HIGH

Signal is active with 4 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock Locking is disabled in the regmap config as this driver uses its own lock. This means that all calls to regmap functions (read or write) must hold the i2c_lock. The function pca953x_irq_bus_sync_unlock() did not do this, and it was therefore possible that multiple threads could cause an incorrect register to be read/written. A previous patch partly fixed this, but only protected the write to the interrupt mask register, and not the read from the direction register.

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0.5/ 10 priority

Sources & remediation

Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 4 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 3 signals
  • Technical details provided in 2 signals
  • General: 1 classified signal
  • 4 total mentions across 1 day

Deep dive

Activity timeline4 mentions / 1d
01234Mentions · 2026-08-22: 4Patch / Workaround · 2026-08-22: 3Technical Details · 2026-08-22: 208-22
Signal classification2 categories
Patch
375.0%
General
125.0%
Referenced assets5 URLs
Full discourse4 posts
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-74733 In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock Locking is disabled in the regmap con… https://www.cve.org/CVERecord?id=CVE-2026-74733 ----- Traducción: CVE-2026-74733 En … http://infoflow.cloud`

    Post summary

    The post announces that CVE‑2026‑74733, a regmap lock issue in the Linux kernel's pca953x driver, has been fixed in the kernel, with no active exploitation or PoC reported.

    0000024
    102 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-74733 In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock Locking is disabled in the regmap con… https://www.cve.org/CVERecord?id=CVE-2026-74733

    Post summary

    The post reports that CVE‑2026‑74733 has been fixed in the Linux kernel, providing minimal technical details and confirming a patch has been applied.

    00000917
    58.0K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-74733 Linux Kernel gpio https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-74733 Don't wait vulnerability scanning results: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=2

    Post summary

    The tweet references CVE‑2026‑74733, linking to vulnerability details and scanning alerts, but provides no proof‑of‑concept, exploit, patch information, or detailed technical description.

    00000119
    4.1K followersView on X
  • PJ@Npj8448
    Patch

    🚨 Coinbase Cartel reports 13 new ransomware victims in 24 hours, while Linux kernel resolves multiple vulnerabilities, including CVE-2026-74733 and CVE-2026-74732 #ThreatIntel #Ransomware #LinuxKernel https://pranithjain.qzz.io/threatintel/telegram

    Post summary

    The tweet reports new ransomware victims while noting that the Linux kernel has applied patches for CVE-2026-74733 and CVE-2026-74732, with no specific exploit or vulnerability details provided.

    0000062
    63 followersView on X

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