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TI-2024-25810 Aliases CVE-2024-38575GHSA-w4c2-47fv-3g9c

wifi: brcmfmac: pcie: handle randbuf allocation failure

Priority LOW 24CWE-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: 9 fixed, 2 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: wifi: brcmfmac: pcie: handle randbuf allocation failure The kzalloc() in brcmf_pcie_download_fw_nvram() will return null if the physical memory has run out. As a result, if we use get_random_bytes() to generate random bytes in the randbuf, the null pointer dereference bug will happen. In order to prevent allocation failure, this patch adds a separate function using buffer on kernel stack to generate random bytes in the randbuf, which could prevent the kernel stack from overflow.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00225 13th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.93, 6.4, 6.6.33 +3Red Hat: 3 advisoriesRed Hat: 9 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.1.30 to before 6.1.93; 6.3.4 to before 6.46.1.93, 6.4Patch availableCNA
LinuxLinux6.4 and later6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10Patch availableCNA
  • Linux VendorLinux Affected 6.1.30 to before 6.1.93; 6.3.4 to before 6.4 Fixed in 6.1.93, 6.4 Patch available CNA
  • Linux VendorLinux Affected 6.4 and later Fixed in 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*6.1.30 to before 6.1.93; 6.3.4 to before 6.6.33; 6.7 to before 6.8.12; 6.9 to before 6.9.3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.1.30 to before 6.1.93; 6.3.4 to before 6.6.33; 6.7 to before 6.8.12; 6.9 to before 6.9.3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.93, 6.4
  • Fix · CNA Linux (Linux) Fixed in 6.1.93, 6.6.33, 6.8.12, 6.9.3, 6.10

Red Hat 3 advisories

  • RHSA-2024:5363 Released 2024-08-15 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.31.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.31.1.el9_4, kernel-64k-devel-5.14.0-427.31.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.31.1.el9_4, kernel-5.14.0-427.31.1.el9_4, kernel-64k-5.14.0-427.31.1.el9_4 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.31.1.el9_4, libperf-5.14.0-427.31.1.el9_4
    • Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.31.1.el9_4, kernel-rt-core-5.14.0-427.31.1.el9_4, kernel-rt-debug-5.14.0-427.31.1.el9_4 +11
    • Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.31.1.el9_4, kernel-rt-core-5.14.0-427.31.1.el9_4, kernel-rt-debug-5.14.0-427.31.1.el9_4 +9
  • RHSA-2024:5101 Released 2024-08-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.16.1.el8_10, kernel-4.18.0-553.16.1.el8_10, kernel-abi-stablelists-4.18.0-553.16.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.16.1.el8_10
  • RHSA-2024:5102 Released 2024-08-08 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +7

Vendor assessments

Red Hat

Red Hat rating: Moderate. 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 9AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:5101
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:5101
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux NFV (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux RT (v. 9)Fixed RHSA-2024:5363
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux CRB (v. 9)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-38575
  2. 2026-10-03 Alias added: GHSA-w4c2-47fv-3g9c
  3. 2026-10-29 Affected versions changed · Red Hat

References

Patch 5

  • 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