CVE-2022-49824

MEDIUM EPSS 7.5%
Published May 1, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 1, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ata: libata-transport: fix error handling in ata_tlink_add() In ata_tlink_add(), the return value of transport_add_device() is not checked. As a result, it causes null-ptr-deref while removing the module, because transport_remove_device() is called to remove the device that was not added. Unable to handle kernel NULL pointer dereference at virtual address 00000000000000d0 CPU: 33 PID: 13850 Comm: rmmod Kdump: loaded Tainted: G W 6.1.0-rc3+ #12 pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : device_del+0x48/0x39c lr : device_del+0x44/0x39c Call trace: device_del+0x48/0x39c attribute_container_class_device_del+0x28/0x40 transport_remove_classdev+0x60/0x7c attribute_container_device_trigger+0x118/0x120 transport_remove_device+0x20/0x30 ata_tlink_delete+0x88/0xb0 [libata] ata_tport_delete+0x2c/0x60 [libata] ata_port_detach+0x148/0x1b0 [libata] ata_pci_remove_one+0x50/0x80 [libata] ahci_remove_one+0x4c/0x8c [ahci] Fix this by checking and handling return value of transport_add_device() in ata_tlink_add().

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
7.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥2.6.37  –  <5.10.156
linuxlinux_kernel*≥5.11  –  <5.15.80
linuxlinux_kernel*≥5.16  –  <6.0.10
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/67b219314628b90b3a314528e177335b0cd5c70b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7377a14598f6b04446c54bc4a50cd249470d6c6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cf0816f6322c5c37ee52655f928e91ecf32da103
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5234480ca822bdcf03fe4d6a590ddcb854558f7
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/67b219314628b90b3a314528e177335b0cd5c70b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7377a14598f6b04446c54bc4a50cd249470d6c6f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cf0816f6322c5c37ee52655f928e91ecf32da103
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5234480ca822bdcf03fe4d6a590ddcb854558f7
    Patch