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Vulnerability · Published Nov 7, 2024 · Assigned by Linux

CVE-2024-50152smb: client: fix possible double free in smb2_set_ea()

Critical 9.8

In plain English

A critical-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 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 58.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix possible double free in smb2_set_ea() Clang static checker(scan-build) warning： fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory. 1304 | kfree(ea); | ^~~~~~~~~ There is a double free in such case: 'ea is initialized to NULL' -> 'first successful memory allocation for ea' -> 'something failed, goto sea_exit' -> 'first memory release for ea' -> 'goto replay_again' -> 'second goto sea_exit before allocate memory for ea' -> 'second memory release for ea resulted in double free'. Re-initialie 'ea' to NULL near to the replay_again label, it can fix this double free problem.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.11.6-1DEBIAN-CVE-2024-50152
Debian:14linux6.11.6-1DEBIAN-CVE-2024-50152
Ubuntu:24.04:LTSlinux6.8.0-58.60UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-aws6.8.0-1027.29UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1027.29~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-azure6.8.0-1027.32UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1012.12~24.04.1UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1027.32~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-azure-nvidia6.8.0-1014.15UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-gcp6.8.0-1028.30UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1011.11~24.04.1UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1028.30~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-gke6.8.0-1023.27UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1010.12UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-58.60~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-ibm6.8.0-1024.24UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1024.24~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-58.60.1UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-58.60.1~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1026.29UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1007.7UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1026.29~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1026.29.1UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1008.8UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1015.15UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-oem-6.86.8.0-1026.26UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-oracle6.8.0-1024.25UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1024.25~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-raspi6.8.0-1028.32UBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-riscv6.8.0-58.60.1UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-58.60.1~22.04.1UBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2024-50152
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2024-50152
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1017.18UBUNTU-CVE-2024-50152

Affected products (as reported)

VendorProductVersions
Linux Linux 433042a91f9373241307725b52de573933ffedbf – before b1813c220b76f60b1727984794377c4aa849d4c14f1fffa2376922f3d1d506e49c0fd445b023a28e – before c9f758ecf2562dfdd4adf12c22921b5de83661234f1fffa2376922f3d1d506e49c0fd445b023a28e – before 19ebc1e6cab334a8193398d4152deb76019b5d346.6.32 – before 6.6.59
Linux Linux 6.8

References