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TI-2025-25893 Aliases CVE-2025-38556GHSA-fr7f-qh29-24jq

HID: core: Harden s32ton() against conversion to 0 bits

Priority LOW 30CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · High
Fix status
Partial Red Hat: 36 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: HID: core: Harden s32ton() against conversion to 0 bits Testing by the syzbot fuzzer showed that the HID core gets a shift-out-of-bounds exception when it tries to convert a 32-bit quantity to a 0-bit quantity. Ideally this should never occur, but there are buggy devices and some might have a report field with size set to zero; we shouldn't reject the report or the device just because of that. Instead, harden the s32ton() routine so that it returns a reasonable result instead of crashing when it is called with the number of bits set to 0 -- the same as what snto32() does.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00171 6th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.248, 5.15.198, 6.1.159 +5Red Hat: 14 advisoriesRed Hat: 36 fixed, 3 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
LinuxLinux2.6.20 and later5.10.248, 5.15.198, 6.1.159, 6.6.119, 6.12.46, 6.15.10, 6.16.1, 6.17Patch availableCNA
  • Linux VendorLinux Affected 2.6.20 and later Fixed in 5.10.248, 5.15.198, 6.1.159, 6.6.119, 6.12.46, 6.15.10, 6.16.1, 6.17 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.6.20 to before 6.12.46; 6.13 to before 6.15.10; 6.16 to before 6.16.1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.20 to before 6.12.46; 6.13 to before 6.15.10; 6.16 to before 6.16.1 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.159, 6.6.119, 6.12.46, 6.15.10, 6.16.1, 6.17

Red Hat 14 advisories

  • RHSA-2025:22752 Released 2025-12-04 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
  • RHSA-2025:21667 Released 2025-11-18 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.173.1.el8_2, kernel-4.18.0-193.173.1.el8_2, kernel-abi-whitelists-4.18.0-193.173.1.el8_2 +14
  • RHSA-2025:21082 Released 2025-11-12 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.142.1.rt56.1294.el7, kernel-rt-debug-3.10.0-1160.142.1.rt56.1294.el7, kernel-rt-debug-devel-3.10.0-1160.142.1.rt56.1294.el7 +4
Show 11 more Red Hat advisories
  • RHSA-2025:21063 Released 2025-11-12 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.142.1.el7, kernel-3.10.0-1160.142.1.el7, kernel-abi-whitelists-3.10.0-1160.142.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.142.1.el7, kernel-tools-libs-devel-3.10.0-1160.142.1.el7
  • RHSA-2025:19492 Released 2025-11-03 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.151.1.el9_0, kernel-debug-devel-matched-5.14.0-70.151.1.el9_0, kernel-devel-5.14.0-70.151.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.151.1.el9_0, kernel-5.14.0-70.151.1.el9_0, kernel-abi-stablelists-5.14.0-70.151.1.el9_0 +14
  • RHSA-2025:19268 Released 2025-10-29 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-core-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-debug-5.14.0-70.151.1.rt21.223.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-core-5.14.0-70.151.1.rt21.223.el9_0, kernel-rt-debug-5.14.0-70.151.1.rt21.223.el9_0 +7
  • RHSA-2025:19222 Released 2025-10-29 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.166.1.el8_6, kernel-4.18.0-372.166.1.el8_6, kernel-abi-stablelists-4.18.0-372.166.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.166.1.el8_6, kernel-4.18.0-372.166.1.el8_6, kernel-abi-stablelists-4.18.0-372.166.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.166.1.el8_6, kernel-4.18.0-372.166.1.el8_6, kernel-abi-stablelists-4.18.0-372.166.1.el8_6 +14
  • RHSA-2025:19224 Released 2025-10-29 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.144.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.144.1.el9_2, kernel-64k-devel-5.14.0-284.144.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.144.1.el9_2, kernel-5.14.0-284.144.1.el9_2, kernel-64k-5.14.0-284.144.1.el9_2 +29
  • RHSA-2025:19223 Released 2025-10-29 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-core-5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-debug-5.14.0-284.144.1.rt14.429.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-core-5.14.0-284.144.1.rt14.429.el9_2, kernel-rt-debug-5.14.0-284.144.1.rt14.429.el9_2 +11
  • RHSA-2025:19104 Released 2025-10-27 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.96.1.el9_4, libperf-5.14.0-427.96.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.96.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.96.1.el9_4, kernel-64k-devel-5.14.0-427.96.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.96.1.el9_4, kernel-5.14.0-427.96.1.el9_4, kernel-64k-5.14.0-427.96.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.96.1.el9_4, kernel-rt-core-5.14.0-427.96.1.el9_4, kernel-rt-debug-5.14.0-427.96.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.96.1.el9_4, kernel-rt-core-5.14.0-427.96.1.el9_4, kernel-rt-debug-5.14.0-427.96.1.el9_4 +11
  • RHSA-2025:18932 Released 2025-10-22 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.116.1.el8_8, kernel-4.18.0-477.116.1.el8_8, kernel-abi-stablelists-4.18.0-477.116.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.116.1.el8_8, kernel-4.18.0-477.116.1.el8_8, kernel-abi-stablelists-4.18.0-477.116.1.el8_8 +14
  • RHSA-2025:17776 Released 2025-10-13 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-55.39.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.39.1.el10_0, kernel-64k-devel-6.12.0-55.39.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-55.39.1.el10_0, kernel-64k-6.12.0-55.39.1.el10_0, kernel-64k-core-6.12.0-55.39.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-55.39.1.el10_0, libperf-6.12.0-55.39.1.el10_0
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-55.39.1.el10_0, kernel-rt-64k-6.12.0-55.39.1.el10_0, kernel-rt-64k-core-6.12.0-55.39.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-55.39.1.el10_0, kernel-rt-core-6.12.0-55.39.1.el10_0, kernel-rt-debug-6.12.0-55.39.1.el10_0 +11
  • RHSA-2025:17760 Released 2025-10-13 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.52.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.52.1.el9_6, kernel-64k-devel-5.14.0-570.52.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.52.1.el9_6, kernel-64k-5.14.0-570.52.1.el9_6, kernel-64k-core-5.14.0-570.52.1.el9_6 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.52.1.el9_6, libperf-5.14.0-570.52.1.el9_6
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.52.1.el9_6, kernel-rt-64k-5.14.0-570.52.1.el9_6, kernel-rt-64k-core-5.14.0-570.52.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.52.1.el9_6, kernel-rt-core-5.14.0-570.52.1.el9_6, kernel-rt-debug-5.14.0-570.52.1.el9_6 +11
  • RHSA-2025:16372 Released 2025-09-22 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.76.1.el8_10, kernel-4.18.0-553.76.1.el8_10, kernel-abi-stablelists-4.18.0-553.76.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.76.1.el8_10

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:17776
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:17760
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:19492
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:19224
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:17776
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:16372
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:17760
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:21667
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:22752
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:19222
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:19222
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:18932
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:19492
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:19224
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2025:22752
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:19222
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:18932
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:16372
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:17776
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:17760
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:19268
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:17776
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:17760
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2025:19268
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:19223
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:17776
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:17760
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:19223
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2025:19104
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:21063
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:21063
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2025:21082

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-38556
  2. 2026-10-03 Alias added: GHSA-fr7f-qh29-24jq

References

Patch 4

Other 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