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TI-2025-25513 Aliases CVE-2025-38172GHSA-49r8-jp3j-22rh

erofs: avoid using multiple devices with different type

Priority LOW 33CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: erofs: avoid using multiple devices with different type For multiple devices, both primary and extra devices should be the same type. `erofs_init_device` has already guaranteed that if the primary is a file-backed device, extra devices should also be regular files. However, if the primary is a block device while the extra device is a file-backed device, `erofs_init_device` will get an ENOTBLK, which is not treated as an error in `erofs_fc_get_tree`, and that leads to an UAF: erofs_fc_get_tree get_tree_bdev_flags(erofs_fc_fill_super) erofs_read_superblock erofs_init_device // sbi->dif0 is not inited yet, // return -ENOTBLK deactivate_locked_super free(sbi) if (err is -ENOTBLK) sbi->dif0.file = filp_open() // sbi UAF So if -ENOTBLK is hitted in `erofs_init_device`, it means the primary device must be a block device, and the extra device is not a block device. The error can be converted to -EINVAL.

Why it matters now

EPSS 0.00178 7th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 6.12.34, 6.15.3, 6.16Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.12 and later6.12.34, 6.15.3, 6.16Patch availableCNA
  • Linux VendorLinux Affected 6.12 and later Fixed in 6.12.34, 6.15.3, 6.16 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*6.12 to before 6.12.34; 6.13 to before 6.15.3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.12 to before 6.12.34; 6.13 to before 6.15.3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.12.34, 6.15.3, 6.16

Red Hat 2 advisories

  • RHSA-2026:2721 Released 2026-02-16 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-124.38.1.el10_1, kernel-64k-debug-devel-matched-6.12.0-124.38.1.el10_1, kernel-64k-devel-6.12.0-124.38.1.el10_1 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-124.38.1.el10_1, kernel-64k-6.12.0-124.38.1.el10_1, kernel-64k-core-6.12.0-124.38.1.el10_1 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-124.38.1.el10_1, libperf-6.12.0-124.38.1.el10_1
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-124.38.1.el10_1, kernel-rt-64k-6.12.0-124.38.1.el10_1, kernel-rt-64k-core-6.12.0-124.38.1.el10_1 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-124.38.1.el10_1, kernel-rt-core-6.12.0-124.38.1.el10_1, kernel-rt-debug-6.12.0-124.38.1.el10_1 +9
  • RHSA-2026:1727 Released 2026-02-02 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.58.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.58.1.el10_0, kernel-64k-devel-6.12.0-55.58.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.58.1.el10_0, kernel-64k-6.12.0-55.58.1.el10_0, kernel-64k-core-6.12.0-55.58.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.58.1.el10_0, libperf-6.12.0-55.58.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.58.1.el10_0, kernel-rt-64k-6.12.0-55.58.1.el10_0, kernel-rt-64k-core-6.12.0-55.58.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.58.1.el10_0, kernel-rt-core-6.12.0-55.58.1.el10_0, kernel-rt-debug-6.12.0-55.58.1.el10_0 +11

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:2721
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:1727
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:2721
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:1727
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:2721
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:1727
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:2721
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:1727
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:2721
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:1727
Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-38172
  2. 2026-10-03 Alias added: GHSA-49r8-jp3j-22rh

References

Patch 3

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences