FICHE CVE

CVE-2024-35997

Publiée le 2024-05-20 · Dernière modification le 2026-10-15

In the Linux kernel, the following vulnerability has been resolved: HID: i2c-hid: remove I2C_HID_READ_PENDING flag to prevent lock-up The flag I2C_HID_READ_PENDING is used to serialize I2C operations. However, this is not necessary, because I2C core already has its own locking for that. More importantly, this flag can cause a lock-up: if the flag is set in i2c_hid_xfer() and an interrupt happens, the interrupt handler (i2c_hid_irq) will check this flag and return immediately without doing anything, then the interrupt handler will be invoked again in an infinite loop. Since interrupt handler is an RT task, it takes over the CPU and the flag-clearing task never gets scheduled, thus we have a lock-up. Delete this unnecessary flag.

CVSS 3.15.5 MOYENNE

Type de faiblesse

Verrouillage incorrect · CWE-667

Publiée2024-05-20

Dernière modification2026-10-15

DÉTAIL DU VECTEUR CVSS

Vecteur d'attaqueLocal

Complexité d'attaqueFaible

Privilèges requisFaibles

Interaction utilisateurAucune

PortéeInchangée

Impact sur la confidentialitéAucun

Impact sur l'intégritéAucun

Impact sur la disponibilitéÉlevé

CVE-2024-35997

DÉTAIL DU VECTEUR CVSS

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