CVE-2026-45877
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
HID: intel-ish-hid: fix NULL-ptr-deref in ishtp_bus_remove_all_clients
During a warm reset flow, the cl->device pointer may be NULL if the reset occurs while clients are still being enumerated. Accessing cl->device->reference_count without a NULL check leads to a kernel panic.
This issue was identified during multi-unit warm reboot stress clycles. Add a defensive NULL check for cl->device to ensure stability under such intensive testing conditions.
KASAN: null-ptr-deref in range [0000000000000000-0000000000000007] Workqueue: ish_fw_update_wq fw_reset_work_fn
Call Trace: ishtp_bus_remove_all_clients+0xbe/0x130 [intel_ishtp] ishtp_reset_handler+0x85/0x1a0 [intel_ishtp] fw_reset_work_fn+0x8a/0xc0 [intel_ish_ipc]
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3703f53b99e4a7c373ce3568dd3f91f175ebb626 < 0b605e8ce60698c27a26f512968a597fd620d2e8 | affected |
| Linux | Linux | 3703f53b99e4a7c373ce3568dd3f91f175ebb626 < feb4bcfd405282de60aba321f13a1272b30c5af4 | affected |
| Linux | Linux | 3703f53b99e4a7c373ce3568dd3f91f175ebb626 < 272dac57caa981718e7188c80c703e7bb1998054 | affected |
| Linux | Linux | 3703f53b99e4a7c373ce3568dd3f91f175ebb626 < 56f7db581ee73af53cd512e00a6261a025bf1d58 | affected |
| Linux | Linux | 4.9 | affected |
| Linux | Linux | 0 < 4.9 | unaffected |
| Linux | Linux | 6.12.75 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.14 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.4 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/0b605e8ce60698c27a26f512968a597fd620d2e8
- https://git.kernel.org/stable/c/feb4bcfd405282de60aba321f13a1272b30c5af4
- https://git.kernel.org/stable/c/272dac57caa981718e7188c80c703e7bb1998054
- https://git.kernel.org/stable/c/56f7db581ee73af53cd512e00a6261a025bf1d58
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.