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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49058cifs: potential buffer overflow in handling symlinks

Critical 9.1

In plain English

A critical-severity buffer overflow 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 0.9% (higher than 59% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.9%top 40.9% 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: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-abi-stablelists4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-core4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-cross-headers4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-debug4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-debug-core4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-debug-devel4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-debug-modules4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-debug-modules-extra4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-devel4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-doc4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-headers4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-modules4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-modules-extra4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-rt4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-core4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-debug4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-debug-core4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-debug-devel4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-debug-modules4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-debug-modules-extra4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-devel4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-modules4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-rt-modules-extra4.18.0-553.62.1.rt7.403.el8_10ALSA-2025:11299
AlmaLinux:8kernel-tools4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-tools-libs4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-tools-libs-devel4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-zfcpdump4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-zfcpdump-core4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-zfcpdump-devel4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-zfcpdump-modules4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8perf4.18.0-553.62.1.el8_10ALSA-2025:11298
AlmaLinux:8python3-perf4.18.0-553.62.1.el8_10ALSA-2025:11298
Debian:12linux5.17.6-1DEBIAN-CVE-2022-49058
Debian:13linux5.17.6-1DEBIAN-CVE-2022-49058
Debian:14linux5.17.6-1DEBIAN-CVE-2022-49058
Rocky Linux:8kernel0:4.18.0-553.62.1.el8_10RLSA-2025:11298
Rocky Linux:8kernel-rt0:4.18.0-553.62.1.rt7.403.el8_10RLSA-2025:11299
Ubuntu:22.04:LTSlinux5.15.0-37.39UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-aws5.15.0-1011.14UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-azure5.15.0-1010.12UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-gcp5.15.0-1008.12UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-gke5.15.0-1008.10UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-ibm5.15.0-1007.8UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1008.11UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-kvm5.15.0-1010.11UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-37.39UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-oracle5.15.0-1009.12UBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-raspi5.15.0-1011.13UBUNTU-CVE-2022-49058
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49058
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49058

Affected products (as reported)

VendorProductVersions
Linux Linux c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before 3e582749e742e662a8e9bb37cffac62dccaaa1e2c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before 1316c28569a80ab3596eeab05bf5e01991e7e739c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before eb5f51756944735ac70cd8bb38637cc202e29c91c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before 22d658c6c5affed10c8907e67160cef0b6c92186c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before 4e166a41180be2f1e66bbb6d46448e80a9a5ec05c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before 9901b07ba42b39266b34a888e48d7306fd707beec69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before 515e7ba11ef043d6febe69389949c8ef5f25e9d0c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 – before 64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304
Linux Linux 2.6.37

Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References