ghsa-hg55-7j9j-f4rq
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rtrs: Add missing deinit() call
A warning is triggered when repeatedly connecting and disconnecting the rnbd: list_add corruption. prev->next should be next (ffff88800b13e480), but was ffff88801ecd1338. (prev=ffff88801ecd1340). WARNING: CPU: 1 PID: 36562 at lib/list_debug.c:32 __list_add_valid_or_report+0x7f/0xa0 Workqueue: ib_cm cm_work_handler [ib_cm] RIP: 0010:__list_add_valid_or_report+0x7f/0xa0 ? __list_add_valid_or_report+0x7f/0xa0 ib_register_event_handler+0x65/0x93 [ib_core] rtrs_srv_ib_dev_init+0x29/0x30 [rtrs_server] rtrs_ib_dev_find_or_add+0x124/0x1d0 [rtrs_core] __alloc_path+0x46c/0x680 [rtrs_server] ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server] ? rcu_is_watching+0xd/0x40 ? __mutex_lock+0x312/0xcf0 ? get_or_create_srv+0xad/0x310 [rtrs_server] ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server] rtrs_rdma_connect+0x23c/0x2d0 [rtrs_server] ? __lock_release+0x1b1/0x2d0 cma_cm_event_handler+0x4a/0x1a0 [rdma_cm] cma_ib_req_handler+0x3a0/0x7e0 [rdma_cm] cm_process_work+0x28/0x1a0 [ib_cm] ? _raw_spin_unlock_irq+0x2f/0x50 cm_req_handler+0x618/0xa60 [ib_cm] cm_work_handler+0x71/0x520 [ib_cm]
Commit 667db86bcbe8 ("RDMA/rtrs: Register ib event handler") introduced a
new element .deinit but never used it at all. Fix it by invoking the
deinit() to appropriately unregister the IB event handler.
{
"affected": [],
"aliases": [
"CVE-2025-21805"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-27T20:16:03Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: Add missing deinit() call\n\nA warning is triggered when repeatedly connecting and disconnecting the\nrnbd:\n list_add corruption. prev-\u003enext should be next (ffff88800b13e480), but was ffff88801ecd1338. (prev=ffff88801ecd1340).\n WARNING: CPU: 1 PID: 36562 at lib/list_debug.c:32 __list_add_valid_or_report+0x7f/0xa0\n Workqueue: ib_cm cm_work_handler [ib_cm]\n RIP: 0010:__list_add_valid_or_report+0x7f/0xa0\n ? __list_add_valid_or_report+0x7f/0xa0\n ib_register_event_handler+0x65/0x93 [ib_core]\n rtrs_srv_ib_dev_init+0x29/0x30 [rtrs_server]\n rtrs_ib_dev_find_or_add+0x124/0x1d0 [rtrs_core]\n __alloc_path+0x46c/0x680 [rtrs_server]\n ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]\n ? rcu_is_watching+0xd/0x40\n ? __mutex_lock+0x312/0xcf0\n ? get_or_create_srv+0xad/0x310 [rtrs_server]\n ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]\n rtrs_rdma_connect+0x23c/0x2d0 [rtrs_server]\n ? __lock_release+0x1b1/0x2d0\n cma_cm_event_handler+0x4a/0x1a0 [rdma_cm]\n cma_ib_req_handler+0x3a0/0x7e0 [rdma_cm]\n cm_process_work+0x28/0x1a0 [ib_cm]\n ? _raw_spin_unlock_irq+0x2f/0x50\n cm_req_handler+0x618/0xa60 [ib_cm]\n cm_work_handler+0x71/0x520 [ib_cm]\n\nCommit 667db86bcbe8 (\"RDMA/rtrs: Register ib event handler\") introduced a\nnew element .deinit but never used it at all. Fix it by invoking the\n`deinit()` to appropriately unregister the IB event handler.",
"id": "GHSA-hg55-7j9j-f4rq",
"modified": "2025-10-28T03:30:13Z",
"published": "2025-02-27T21:32:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21805"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1af2c769032b6b334cd2a867d7d8c7cbbc527b2d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5a79cc9bc961fafe90787f86e8f53ba6fad8d63b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/81468c4058a62e84e475433b83b3edc613294f5e"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.