CVE-2022-50299

MEDIUM EPSS 4.3%
Published Sep 15, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 15, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: md: Replace snprintf with scnprintf Current code produces a warning as shown below when total characters in the constituent block device names plus the slashes exceeds 200. snprintf() returns the number of characters generated from the given input, which could cause the expression “200 – len” to wrap around to a large positive number. Fix this by using scnprintf() instead, which returns the actual number of characters written into the buffer. [ 1513.267938] ------------[ cut here ]------------ [ 1513.267943] WARNING: CPU: 15 PID: 37247 at <snip>/lib/vsprintf.c:2509 vsnprintf+0x2c8/0x510 [ 1513.267944] Modules linked in: <snip> [ 1513.267969] CPU: 15 PID: 37247 Comm: mdadm Not tainted 5.4.0-1085-azure #90~18.04.1-Ubuntu [ 1513.267969] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 05/09/2022 [ 1513.267971] RIP: 0010:vsnprintf+0x2c8/0x510 <-snip-> [ 1513.267982] Call Trace: [ 1513.267986] snprintf+0x45/0x70 [ 1513.267990] ? disk_name+0x71/0xa0 [ 1513.267993] dump_zones+0x114/0x240 [raid0] [ 1513.267996] ? _cond_resched+0x19/0x40 [ 1513.267998] raid0_run+0x19e/0x270 [raid0] [ 1513.268000] md_run+0x5e0/0xc50 [ 1513.268003] ? security_capable+0x3f/0x60 [ 1513.268005] do_md_run+0x19/0x110 [ 1513.268006] md_ioctl+0x195e/0x1f90 [ 1513.268007] blkdev_ioctl+0x91f/0x9f0 [ 1513.268010] block_ioctl+0x3d/0x50 [ 1513.268012] do_vfs_ioctl+0xa9/0x640 [ 1513.268014] ? __fput+0x162/0x260 [ 1513.268016] ksys_ioctl+0x75/0x80 [ 1513.268017] __x64_sys_ioctl+0x1a/0x20 [ 1513.268019] do_syscall_64+0x5e/0x200 [ 1513.268021] entry_SYSCALL_64_after_hwframe+0x44/0xa9

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥4.10  –  <4.14.296
linuxlinux_kernel*≥4.15  –  <4.19.262
linuxlinux_kernel*≥4.20  –  <5.4.220
linuxlinux_kernel*≥5.5  –  <5.10.150
linuxlinux_kernel*≥5.11  –  <5.15.75
linuxlinux_kernel*≥5.16  –  <5.19.17
linuxlinux_kernel*≥6.0  –  <6.0.3

References 8

  • git.kernel.org https://git.kernel.org/stable/c/1727fd5015d8f93474148f94e34cda5aa6ad4a43
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3b0a2bd51f60418ecd67493586a2bb2174199de3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/41ca95033a0c47cd6dace1f0a36a6eb5ebe799e6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d8259c9d1915a50c60c7d6e9e7fb9b7da64a175
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/76694e9ce0b2238c0a5f3ba54f9361dd3770ec78
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/897b1450abe5a67c842a5d24173ce4449ccdfa94
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97238b88583c27c9d3b4a0cedb45f816523f17c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f95825c4e51cf9a653b0ef947ac78401fc9d3a40
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1727fd5015d8f93474148f94e34cda5aa6ad4a43
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3b0a2bd51f60418ecd67493586a2bb2174199de3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/41ca95033a0c47cd6dace1f0a36a6eb5ebe799e6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d8259c9d1915a50c60c7d6e9e7fb9b7da64a175
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/76694e9ce0b2238c0a5f3ba54f9361dd3770ec78
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/897b1450abe5a67c842a5d24173ce4449ccdfa94
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/97238b88583c27c9d3b4a0cedb45f816523f17c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f95825c4e51cf9a653b0ef947ac78401fc9d3a40
    Patch