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Vulnerability · Published May 1, 2024 · Assigned by Linux

CVE-2024-26955nilfs2: prevent kernel bug at submit_bh_wbc()

High 7.8

In plain English

A high-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 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.3%top 82.8% 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: nilfs2: prevent kernel bug at submit_bh_wbc() Fix a bug where nilfs_get_block() returns a successful status when searching and inserting the specified block both fail inconsistently. If this inconsistent behavior is not due to a previously fixed bug, then an unexpected race is occurring, so return a temporary error -EAGAIN instead. This prevents callers such as __block_write_begin_int() from requesting a read into a buffer that is not mapped, which would cause the BUG_ON check for the BH_Mapped flag in submit_bh_wbc() to fail.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.85-1DEBIAN-CVE-2024-26955
Debian:13linux6.7.12-1DEBIAN-CVE-2024-26955
Debian:14linux6.7.12-1DEBIAN-CVE-2024-26955
Ubuntu:22.04:LTSlinux5.15.0-116.126USN-6898-1
Ubuntu:22.04:LTSlinux5.15.0-116.126UBUNTU-CVE-2024-26955
Ubuntu:24.04:LTSlinux6.8.0-35.35UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-aws5.15.0-1065.71UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-aws5.15.0-1065.71USN-6898-3
Ubuntu:24.04:LTSlinux-aws6.8.0-1009.9UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure5.15.0-1068.77UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure5.15.0-1068.77USN-6917-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1008.8UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1068.77.1UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1068.77.1USN-6917-1
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-gcp5.15.0-1064.72USN-6898-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1064.72UBUNTU-CVE-2024-26955
Ubuntu:24.04:LTSlinux-gcp6.8.0-1008.9UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-gke5.15.0-1062.68USN-6898-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1062.68UBUNTU-CVE-2024-26955
Ubuntu:24.04:LTSlinux-gke6.8.0-1004.7UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1048.55UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1048.55USN-6898-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-ibm5.15.0-1058.61UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-ibm5.15.0-1058.61USN-6898-1
Ubuntu:24.04:LTSlinux-ibm6.8.0-1006.6UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1060.66UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1060.66USN-6898-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1062.67UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-kvm5.15.0-1062.67USN-6898-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-116.126UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-116.126USN-6898-2
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-35.35.1UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1060.61USN-6898-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1060.61UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1006.6UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-oracle5.15.0-1063.69UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-oracle5.15.0-1063.69USN-6898-1
Ubuntu:24.04:LTSlinux-oracle6.8.0-1006.6UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-raspi5.15.0-1058.61UBUNTU-CVE-2024-26955
Ubuntu:24.04:LTSlinux-raspi6.8.0-1005.5UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-26955
Ubuntu:24.04:LTSlinux-riscv6.8.0-35.35.1UBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-26955
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1035.39UBUNTU-CVE-2024-26955

Affected products (as reported)

VendorProductVersions
Linux Linux 1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before 91e4c4595fae5e87069e44687ae879091783c1831f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before 32eaee72e96590a75445c8a6c7c1057673b47e071f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before f0fe7ad5aff4f0fcf988913313c497de85f1e1861f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before ca581d237f3b8539c044205bb003de71d75d227c1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before 192e9f9078c96be30b31c4b44d6294b24520fce51f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before 0c8aa4cfda4e4adb15d5b6536d155eca9c9cd44c1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before 48d443d200237782dc82e6b60663ec414ef02e391f5abe7e7dbcd83e73212c6cb135a6106cea6a0b – before 76ffbe911e2798c7296968f5fd72f7bf67207a8d
Linux Linux 2.6.30

References