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Vulnerability · Published Mar 2, 2024 · Assigned by Linux

CVE-2023-52569btrfs: remove BUG() after failure to insert delayed dir index item

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 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 84.7% 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: btrfs: remove BUG() after failure to insert delayed dir index item Instead of calling BUG() when we fail to insert a delayed dir index item into the delayed node's tree, we can just release all the resources we have allocated/acquired before and return the error to the caller. This is fine because all existing call chains undo anything they have done before calling btrfs_insert_delayed_dir_index() or BUG_ON (when creating pending snapshots in the transaction commit path). So remove the BUG() call and do proper error handling. This relates to a syzbot report linked below, but does not fix it because it only prevents hitting a BUG(), it does not fix the issue where somehow we attempt to use twice the same index number for different index items.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.6.8-1DEBIAN-CVE-2023-52569
Debian:14linux6.6.8-1DEBIAN-CVE-2023-52569
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1014.14UBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2023-52569
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52569
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2023-52569

Affected products (as reported)

VendorProductVersions
Linux Linux 9b378f6ad48cfa195ed868db9123c09ee7ec5ea2 – before d10fd53393cc5de4b9cf1a4b8f9984f0a037aa519b378f6ad48cfa195ed868db9123c09ee7ec5ea2 – before 2c58c3931ede7cd08cbecf1f1a4acaf0a04a41a979cf35e16dd5b8639909d4df957503b84de304065441532ffc9c8c9f7cab0f8722e6d60a0b5e12595.15.149 – before 5.166.4.12 – before 6.5
Linux Linux 6.5

References