CVE-2022-49930
- Source
- https://cve.org/CVERecord?id=CVE-2022-49930
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49930.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49930
- Downstream
- Published
- 2025-05-01T14:11:07.408Z
- Modified
- 2026-04-02T08:28:04.024302Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- RDMA/hns: Fix NULL pointer problem in free_mr_init()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
RDMA/hns: Fix NULL pointer problem in freemrinit()
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 __mutexlockslowpath+0x1c/0x2c mutexlock+0x44/0x50 freemrsendcmdtohw+0x7c/0x1c0 [hnsrocehwv2] hnsrocev2deregmr+0x30/0x40 [hnsrocehwv2] hnsrocederegmr+0x4c/0x130 [hnsrocehwv2] ibderegmruser+0x54/0x124 uverbsfreemr+0x24/0x30 destroyhwidruobject+0x38/0x74 uverbsdestroyuobject+0x48/0x1c4 uobjdestroy+0x74/0xcc ibuverbscmdverbs+0x368/0xbb0 ibuverbsioctl+0xec/0x1a4 _arm64sysioctl+0xb4/0x100 invokesyscall+0x50/0x120 el0svccommon.constprop.0+0x58/0x190 doel0svc+0x30/0x90 el0svc+0x2c/0xb4 el0t64synchandler+0x1a4/0x1b0 el0t64sync+0x19c/0x1a0
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49930.json" }- References
-
- https://git.kernel.org/stable/c/0e23e85d86b78e734dd6654f1b69fbaeb5534c81
- https://git.kernel.org/stable/c/12bcaf87d8b66d8cd812479c8a6349dcb245375c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49930.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49930
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git