CVE-2022-49034

MEDIUM EPSS 15.3%
Published Dec 27, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Dec 27, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: sh: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS are selected, cpu_max_bits_warn() generates a runtime warning similar as below when showing /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<90000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9000000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<900000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9000000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9000000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<90000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<90000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<90000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<90000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9000000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9000000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]---

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
15.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <4.19.325
linuxlinux_kernel*≥4.20  –  <5.4.287
linuxlinux_kernel*≥5.5  –  <5.10.231
linuxlinux_kernel*≥5.11  –  <5.15.174
linuxlinux_kernel*≥5.16  –  <6.1.120
linuxlinux_kernel*≥6.2  –  <6.6.64
linuxlinux_kernel*≥6.7  –  <6.11.11
linuxlinux_kernel*≥6.12  –  <6.12.2

References 10

  • git.kernel.org https://git.kernel.org/stable/c/09faf32c682ea4a547200b8b9e04d8b3c8e84b55
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b6b8e011fab680a223b5e07a3c64774156ec6fe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39373f6f89f52770a5405d30dddd08a27d097872
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3c891f7c6a4e90bb1199497552f24b26e46383bc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/701e32900683378d93693fec15d133e2c5f7ada2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/77755dc95ff2f9a3e473acc1e039f498629949ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8fbb57eabfc8ae67115cb47f904614c99d626a89
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2b91997db286a5dd3cca6d5d9c20004851f22eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f8f26cf69003a37ffa947631fc0e6fe6daee624a
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/09faf32c682ea4a547200b8b9e04d8b3c8e84b55
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b6b8e011fab680a223b5e07a3c64774156ec6fe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39373f6f89f52770a5405d30dddd08a27d097872
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3c891f7c6a4e90bb1199497552f24b26e46383bc
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/701e32900683378d93693fec15d133e2c5f7ada2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/77755dc95ff2f9a3e473acc1e039f498629949ea
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8fbb57eabfc8ae67115cb47f904614c99d626a89
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e2b91997db286a5dd3cca6d5d9c20004851f22eb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f8f26cf69003a37ffa947631fc0e6fe6daee624a
    Patch