ghsa-g77v-vvxx-rcj7
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
RDMA/hns: Fix NULL pointer problem in free_mr_init()
Lock grab occurs in a concurrent scenario, resulting in stepping on a NULL pointer. It should be init mutex_init() first before use the lock.
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Call trace: __mutex_lock.constprop.0+0xd0/0x5c0 __mutex_lock_slowpath+0x1c/0x2c mutex_lock+0x44/0x50 free_mr_send_cmd_to_hw+0x7c/0x1c0 [hns_roce_hw_v2] hns_roce_v2_dereg_mr+0x30/0x40 [hns_roce_hw_v2] hns_roce_dereg_mr+0x4c/0x130 [hns_roce_hw_v2] ib_dereg_mr_user+0x54/0x124 uverbs_free_mr+0x24/0x30 destroy_hw_idr_uobject+0x38/0x74 uverbs_destroy_uobject+0x48/0x1c4 uobj_destroy+0x74/0xcc ib_uverbs_cmd_verbs+0x368/0xbb0 ib_uverbs_ioctl+0xec/0x1a4 __arm64_sys_ioctl+0xb4/0x100 invoke_syscall+0x50/0x120 el0_svc_common.constprop.0+0x58/0x190 do_el0_svc+0x30/0x90 el0_svc+0x2c/0xb4 el0t_64_sync_handler+0x1a4/0x1b0 el0t_64_sync+0x19c/0x1a0
{
"affected": [],
"aliases": [
"CVE-2022-49930"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T15:16:18Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hns: Fix NULL pointer problem in free_mr_init()\n\nLock grab occurs in a concurrent scenario, resulting in stepping on a NULL\npointer. It should be init mutex_init() first before use the lock.\n\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n Call trace:\n __mutex_lock.constprop.0+0xd0/0x5c0\n __mutex_lock_slowpath+0x1c/0x2c\n mutex_lock+0x44/0x50\n free_mr_send_cmd_to_hw+0x7c/0x1c0 [hns_roce_hw_v2]\n hns_roce_v2_dereg_mr+0x30/0x40 [hns_roce_hw_v2]\n hns_roce_dereg_mr+0x4c/0x130 [hns_roce_hw_v2]\n ib_dereg_mr_user+0x54/0x124\n uverbs_free_mr+0x24/0x30\n destroy_hw_idr_uobject+0x38/0x74\n uverbs_destroy_uobject+0x48/0x1c4\n uobj_destroy+0x74/0xcc\n ib_uverbs_cmd_verbs+0x368/0xbb0\n ib_uverbs_ioctl+0xec/0x1a4\n __arm64_sys_ioctl+0xb4/0x100\n invoke_syscall+0x50/0x120\n el0_svc_common.constprop.0+0x58/0x190\n do_el0_svc+0x30/0x90\n el0_svc+0x2c/0xb4\n el0t_64_sync_handler+0x1a4/0x1b0\n el0t_64_sync+0x19c/0x1a0",
"id": "GHSA-g77v-vvxx-rcj7",
"modified": "2025-05-01T15:31:53Z",
"published": "2025-05-01T15:31:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49930"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0e23e85d86b78e734dd6654f1b69fbaeb5534c81"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/12bcaf87d8b66d8cd812479c8a6349dcb245375c"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- 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.