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TI-2025-15833 Aliases CVE-2025-21883GHSA-957j-8wc9-pfwx

ice: Fix deinitializing VF in error path

Priority LOW 33CWE-416Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. 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: ice: Fix deinitializing VF in error path If ice_ena_vfs() fails after calling ice_create_vf_entries(), it frees all VFs without removing them from snapshot PF-VF mailbox list, leading to list corruption. Reproducer: devlink dev eswitch set $PF1_PCI mode switchdev ip l s $PF1 up ip l s $PF1 promisc on sleep 1 echo 1 > /sys/class/net/$PF1/device/sriov_numvfs sleep 1 echo 1 > /sys/class/net/$PF1/device/sriov_numvfs Trace (minimized): list_add corruption. next->prev should be prev (ffff8882e241c6f0), but was 0000000000000000. (next=ffff888455da1330). kernel BUG at lib/list_debug.c:29! RIP: 0010:__list_add_valid_or_report+0xa6/0x100 ice_mbx_init_vf_info+0xa7/0x180 [ice] ice_initialize_vf_entry+0x1fa/0x250 [ice] ice_sriov_configure+0x8d7/0x1520 [ice] ? __percpu_ref_switch_mode+0x1b1/0x5d0 ? __pfx_ice_sriov_configure+0x10/0x10 [ice] Sometimes a KASAN report can be seen instead with a similar stack trace: BUG: KASAN: use-after-free in __list_add_valid_or_report+0xf1/0x100 VFs are added to this list in ice_mbx_init_vf_info(), but only removed in ice_free_vfs(). Move the removing to ice_free_vf_entries(), which is also being called in other places where VFs are being removed (including ice_free_vfs() itself).

Why it matters now

EPSS 0.00209 11th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 6.6.81, 6.12.18, 6.13.6 +1Red Hat: 2 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.4 and later6.6.81, 6.12.18, 6.13.6, 6.14Patch availableCNA
  • Linux VendorLinux Affected 6.4 and later Fixed in 6.6.81, 6.12.18, 6.13.6, 6.14 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*6.4 to before 6.6.81; 6.7 to before 6.12.18; 6.13 to before 6.13.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*6.14 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*6.14 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*6.14 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*6.14 rc4VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.4 to before 6.6.81; 6.7 to before 6.12.18; 6.13 to before 6.13.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* Versions 6.14 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* Versions 6.14 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* Versions 6.14 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:* Versions 6.14 rc4 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.6.81, 6.12.18, 6.13.6, 6.14

Red Hat 2 advisories

  • RHSA-2025:9896 Released 2025-06-30 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-55.19.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.19.1.el10_0, kernel-64k-devel-6.12.0-55.19.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-55.19.1.el10_0, kernel-64k-6.12.0-55.19.1.el10_0, kernel-64k-core-6.12.0-55.19.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-55.19.1.el10_0, libperf-6.12.0-55.19.1.el10_0
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-55.19.1.el10_0, kernel-rt-64k-6.12.0-55.19.1.el10_0, kernel-rt-64k-core-6.12.0-55.19.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-55.19.1.el10_0, kernel-rt-core-6.12.0-55.19.1.el10_0, kernel-rt-debug-6.12.0-55.19.1.el10_0 +11
  • RHSA-2025:9302 Released 2025-06-23 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.23.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.23.1.el9_6, kernel-64k-devel-5.14.0-570.23.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.23.1.el9_6, kernel-64k-5.14.0-570.23.1.el9_6, kernel-64k-core-5.14.0-570.23.1.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.23.1.el9_6, libperf-5.14.0-570.23.1.el9_6
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.23.1.el9_6, kernel-rt-64k-5.14.0-570.23.1.el9_6, kernel-rt-64k-core-5.14.0-570.23.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.23.1.el9_6, kernel-rt-core-5.14.0-570.23.1.el9_6, kernel-rt-debug-5.14.0-570.23.1.el9_6 +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-2025:9896
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:9302
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:9896
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:9302
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:9896
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:9302
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:9896
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:9302
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:9896
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:9302
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-21883
  2. 2026-10-03 Alias added: GHSA-957j-8wc9-pfwx
  3. 2026-10-29 Affected versions changed · Red Hat

References

Patch 4

  • 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