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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49569spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers

Medium 5.5

In plain English

A medium-severity null pointer dereference in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.3%top 82.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.18.16-1DEBIAN-CVE-2022-49569
Debian:13linux5.18.16-1DEBIAN-CVE-2022-49569
Debian:14linux5.18.16-1DEBIAN-CVE-2022-49569
Ubuntu:22.04:LTSlinux5.15.0-50.56UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-aws5.15.0-1021.25UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-azure5.15.0-1021.26UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1024.30.1UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-gcp5.15.0-1019.25UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-gke5.15.0-1017.20UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1004.6UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-ibm5.15.0-1015.17UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1017.22UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-kvm5.15.0-1019.23UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-50.56UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-oracle5.15.0-1019.24UBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-raspi5.15.0-1016.18UBUNTU-CVE-2022-49569
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49569
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49569

Affected products (as reported)

VendorProductVersions
Linux Linux 1513ceee70f2bd523e025efe0c715328e1a43ffd – before 76668d2a2f367d25ff448e6d7087406af7d7bb2b1513ceee70f2bd523e025efe0c715328e1a43ffd – before 684896e675edd8b669fd3e9f547c5038222d85bc1513ceee70f2bd523e025efe0c715328e1a43ffd – before 58466e05390043d2805685c70f55f3f59711bdf21513ceee70f2bd523e025efe0c715328e1a43ffd – before 49ffa473218012e765682343de2052eb4c1f06a71513ceee70f2bd523e025efe0c715328e1a43ffd – before 4ceaa684459d414992acbefb4e4c31f2dfc50641
Linux Linux 5.4

Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References