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TI-2022-25133 Aliases CVE-2022-49625GHSA-2g78-g7c6-x75p

sfc: fix kernel panic when creating VF

Priority LOW 25CWE-476Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 5 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

In the Linux kernel, the following vulnerability has been resolved: sfc: fix kernel panic when creating VF When creating VFs a kernel panic can happen when calling to efx_ef10_try_update_nic_stats_vf. When releasing a DMA coherent buffer, sometimes, I don't know in what specific circumstances, it has to unmap memory with vunmap. It is disallowed to do that in IRQ context or with BH disabled. Otherwise, we hit this line in vunmap, causing the crash: BUG_ON(in_interrupt()); This patch reenables BH to release the buffer. Log messages when the bug is hit: kernel BUG at mm/vmalloc.c:2727! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 6 PID: 1462 Comm: NetworkManager Kdump: loaded Tainted: G I --------- --- 5.14.0-119.el9.x86_64 #1 Hardware name: Dell Inc. PowerEdge R740/06WXJT, BIOS 2.8.2 08/27/2020 RIP: 0010:vunmap+0x2e/0x30 ...skip... Call Trace: __iommu_dma_free+0x96/0x100 efx_nic_free_buffer+0x2b/0x40 [sfc] efx_ef10_try_update_nic_stats_vf+0x14a/0x1c0 [sfc] efx_ef10_update_stats_vf+0x18/0x40 [sfc] efx_start_all+0x15e/0x1d0 [sfc] efx_net_open+0x5a/0xe0 [sfc] __dev_open+0xe7/0x1a0 __dev_change_flags+0x1d7/0x240 dev_change_flags+0x21/0x60 ...skip...

Why it matters now

EPSS 0.00287 21st percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.9.324, 4.14.289, 4.19.253 +5Red Hat: 2 advisoriesRed Hat: 5 fixed, 3 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.2 and later4.9.324, 4.14.289, 4.19.253, 5.4.207, 5.10.132, 5.15.56, 5.18.13, 5.19Patch availableCNA
  • Linux VendorLinux Affected 4.2 and later Fixed in 4.9.324, 4.14.289, 4.19.253, 5.4.207, 5.10.132, 5.15.56, 5.18.13, 5.19 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.2 to before 4.9.324; 4.10 to before 4.14.289; 4.15 to before 4.19.253; 4.20 to before 5.4.207; 5.5 to before 5.10.132; 5.11 to before 5.15.56; 5.16 to before 5.18.13VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*5.19 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*5.19 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*5.19 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*5.19 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*5.19 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*5.19 rc6VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.2 to before 4.9.324; 4.10 to before 4.14.289; 4.15 to before 4.19.253; 4.20 to before 5.4.207; 5.5 to before 5.10.132; 5.11 to before 5.15.56; 5.16 to before 5.18.13 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* Versions 5.19 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* Versions 5.19 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* Versions 5.19 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:* Versions 5.19 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:* Versions 5.19 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:* Versions 5.19 rc6 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.9.324, 4.14.289, 4.19.253, 5.4.207, 5.10.132, 5.15.56, 5.18.13, 5.19

Red Hat 2 advisories

  • RHSA-2022:8267 Released 2022-11-15 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-162.6.1.el9_1
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-debug-devel-5.14.0-162.6.1.el9_1, kernel-debug-devel-matched-5.14.0-162.6.1.el9_1, kernel-devel-5.14.0-162.6.1.el9_1 +5
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-5.14.0-162.6.1.el9_1, kernel-5.14.0-162.6.1.el9_1, kernel-abi-stablelists-5.14.0-162.6.1.el9_1 +14
  • RHSA-2022:7683 Released 2022-11-08 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-425.3.1.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-425.3.1.el8, kernel-4.18.0-425.3.1.el8, kernel-abi-stablelists-4.18.0-425.3.1.el8 +19

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2022:7683
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2022:8267
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:8267
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:7683
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2022:8267
Not affected: 2 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-49625
  2. 2026-10-03 Alias added: GHSA-2g78-g7c6-x75p

References

Patch 8

  • 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