CVE-2022-49569

Katalog CVE

CVSS 5.5 · Medium EPSS 0,26%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers In case a IRQ based transfer times out the bcm2835_spi_handle_err() function is called. Since commit 1513ceee70f2 ("spi: bcm2835: Drop dma_pending flag") the TX and RX DMA transfers are unconditionally canceled, leading to NULL pointer derefs if ctlr->dma_tx or ctlr->dma_rx are not set. Fix the NULL pointer deref by checking that ctlr->dma_tx and ctlr->dma_rx are valid pointers before accessing them.

Rincian

Terbit di NVD

26 Februari 2025

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,26% peluang dieksploitasi; lebih tinggi dari 16,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/49ffa473218012e765682343de2052eb4c1f06a7 patch
• https://git.kernel.org/stable/c/4ceaa684459d414992acbefb4e4c31f2dfc50641 patch
• https://git.kernel.org/stable/c/58466e05390043d2805685c70f55f3f59711bdf2 patch
• https://git.kernel.org/stable/c/684896e675edd8b669fd3e9f547c5038222d85bc patch
• https://git.kernel.org/stable/c/76668d2a2f367d25ff448e6d7087406af7d7bb2b patch