NULL Pointer Dereference Affecting kernel-zfcpdump-modules package, versions *
Threat Intelligence
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Test your applications- Snyk IDSNYK-CENTOS10-KERNELZFCPDUMPMODULES-18652287
- published14 Aug 2026
- disclosed10 Aug 2026
Introduced: 10 Aug 2026
NewCVE-2026-68191 (opens in a new tab)How to fix?
There is no fixed version for Centos:10 kernel-zfcpdump-modules.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-modules package and not the kernel-zfcpdump-modules package as distributed by Centos.
See How to fix? for Centos:10 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: fix NULL pointer dereference in rhash table destroy
When unbinding the ath12k driver, kernel NULL pointer dereferences occur in irq_work_sync() called from rhashtable_destroy().
Two hash tables are affected:
- ath12k_link_sta hash table in ath12k_base
- ath12k_dp_link_peer hash table in ath12k_dp
The issue happens because the destroy functions are called unconditionally in cleanup paths, but the hash tables are only initialized late in their respective init functions. If the device was never fully started or if the init functions failed before initializing the hash tables, the pointers will be NULL. The issues are always reproducible from a VM because the MSI addressing initialization is failing.
Call trace for ath12k_link_sta_rhash_tbl_destroy: RIP: irq_work_sync+0x1e/0x70 rhashtable_destroy+0x12/0x60 ath12k_link_sta_rhash_tbl_destroy+0x19/0x40 [ath12k] ath12k_core_stop+0xe/0x80 [ath12k] ath12k_core_hw_group_cleanup+0x6b/0xb0 [ath12k] ath12k_pci_remove+0x60/0x110 [ath12k]
Call trace for ath12k_dp_link_peer_rhash_tbl_destroy: RIP: irq_work_sync+0x1e/0x70 rhashtable_destroy+0x12/0x60 ath12k_dp_link_peer_rhash_tbl_destroy+0x29/0x50 [ath12k] ath12k_dp_cmn_device_deinit+0x21/0x140 [ath12k] ath12k_core_hw_group_cleanup+0x6b/0xb0 [ath12k] ath12k_pci_remove+0x60/0x110 [ath12k]
Fix this by adding NULL checks before calling rhashtable_destroy() in both destroy functions.
The NULL check approach was chosen because the rhashtable pointer serves as the initialization state indicator. The init can fail at various points, leaving some components uninitialized. Checking the pointer directly is simpler than adding separate state flags that would need synchronization.