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Vulnerability · Published Jun 19, 2024 · Assigned by Linux

CVE-2024-38604block: refine the EOF check in blkdev_iomap_begin

Medium 5.5

In plain English

A medium-severity security flaw 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 0.2% (higher than 11% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 89.2% 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: block: refine the EOF check in blkdev_iomap_begin blkdev_iomap_begin rounds down the offset to the logical block size before stashing it in iomap->offset and checking that it still is inside the inode size. Check the i_size check to the raw pos value so that we don't try a zero size write if iter->pos is unaligned.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.8.12-1DEBIAN-CVE-2024-38604
Debian:14linux6.8.12-1DEBIAN-CVE-2024-38604
Ubuntu:24.04:LTSlinux6.8.0-40.40UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-aws6.8.0-1013.14UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1013.14~22.04.1UBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-azure6.8.0-1012.14UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1012.14~22.04.1UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-gcp6.8.0-1012.13UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1012.13~22.04.1UBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-gke6.8.0-1008.11UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-40.40~22.04.3UBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-ibm6.8.0-1010.10UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-40.40.1UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1011.11UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1011.11~22.04.1UBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1011.11.1UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1010.10UBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-oracle6.8.0-1010.10UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1010.10~22.04.1UBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-raspi6.8.0-1009.10UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-38604
Ubuntu:24.04:LTSlinux-riscv6.8.0-40.40.1UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-40.40.1~22.04.1UBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-38604
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-38604

Affected products (as reported)

VendorProductVersions
Linux Linux 487c607df790d366e67a7d6a30adf785cdd98e55 – before 910717920c8c3f9386277a44c44d448058a18084487c607df790d366e67a7d6a30adf785cdd98e55 – before 72c54e063c32aeb38d43a2bd897821e6e5a1757d487c607df790d366e67a7d6a30adf785cdd98e55 – before 10b723bcba8986537a484aa94dbfc9093fd776a1487c607df790d366e67a7d6a30adf785cdd98e55 – before 0c12028aec837f5a002009bbf68d179d506510e8
Linux Linux 6.6

References