CVE-2022-49930
May 1, 2025, 3:16 p.m.
None
No Score
Description
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
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Linux |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| o | linux | linux_kernel | / | / | / | / | / | / | / | / |
| a | linux | rdma | / | / | / | / | / | / | / | / |
Tags
Timeline
Published: May 1, 2025, 3:16 p.m.
Last Modified: May 1, 2025, 3:16 p.m.
Last Modified: May 1, 2025, 3:16 p.m.
Status : Received
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
416baaa9-dc9f-4396-8d5f-8c081fb06d67
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.