CVE-2022-49925 Details
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix null-ptr-deref in ib_core_cleanup() KASAN reported a null-ptr-deref error: KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] CPU: 1 PID: 379 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:destroy_workqueue+0x2f/0x740 RSP: 0018:ffff888016137df8 EFLAGS: 00000202 ... Call Trace: ib_core_cleanup+0xa/0xa1 [ib_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa1a0d221b7 ... It is because the fail of roce_gid_mgmt_init() is ignored: ib_core_init() roce_gid_mgmt_init() gid_cache_wq = alloc_ordered_workqueue # fail ... ib_core_cleanup() roce_gid_mgmt_cleanup() destroy_workqueue(gid_cache_wq) # destroy an unallocated wq Fix this by catching the fail of roce_gid_mgmt_init() in ib_core_init().
A null pointer dereference vulnerability has been identified in the Linux kernel's RDMA subsystem. This issue arises in the 'ib_core_cleanup()' function, where the failure of 'roce_gid_mgmt_init()' is ignored. As a result, an unallocated workqueue is attempted to be destroyed, leading to a null pointer dereference. The vulnerability was reported by KASAN, indicating a memory access error.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 1, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/07c0d131cc0fe1f3981a42958fc52d573d303d89 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6b3d5dcb12347f3518308c2c9d2cf72453a3e1e5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/af8fb5a0600e9ae29950e9422a032c3c22649ee5 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d360e875c011a005628525bf290322058927e7dc | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
| CWE-476 | NULL Pointer Dereference | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.3, < 5.4.224 >= 5.5, < 5.10.154 >= 5.11, < 5.15.78 >= 5.16, < 6.0.8 6.1 rc1 6.1 rc2 6.1 rc3 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 1, 2025 | CVE Modified | CISA-ADP |
| May 7, 2025 | Initial Analysis | [email protected] |
| May 1, 2025 | New CVE Received | kernel.org |