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CVE-2022-49925— RDMA/core: Fix null-ptr-deref in ib_core_cleanup()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ib_core_cleanup空指针取消引用，可能导致系统崩溃。

AI Predicted 3.3 Difficulty: Easy EPSS 0.20% · P10

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 03db3a2d81e6e84f3ed3cb9e087cae17d762642b< af8fb5a0600e9ae29950e9422a032c3c22649ee5 affected
03db3a2d81e6e84f3ed3cb9e087cae17d762642b< d360e875c011a005628525bf290322058927e7dc affected
03db3a2d81e6e84f3ed3cb9e087cae17d762642b< 6b3d5dcb12347f3518308c2c9d2cf72453a3e1e5 affected
03db3a2d81e6e84f3ed3cb9e087cae17d762642b< ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9 affected
03db3a2d81e6e84f3ed3cb9e087cae17d762642b< 07c0d131cc0fe1f3981a42958fc52d573d303d89 affected
4.3 affected
< 4.3 unaffected
5.4.224≤ 5.4.* unaffected
… +4 more rows
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I. Basic Information for CVE-2022-49925

Vulnerability Information
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Vulnerability Title
RDMA/core: Fix null-ptr-deref in ib_core_cleanup()
Source: CVE Program / CVE List V5
Vulnerability 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().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ib_core_cleanup空指针取消引用，可能导致系统崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 03db3a2d81e6e84f3ed3cb9e087cae17d762642b ~ af8fb5a0600e9ae29950e9422a032c3c22649ee5 -
Linux Linux 4.3 -

II. Public POCs for CVE-2022-49925

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III. Intelligence Information for CVE-2022-49925

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Patches & Fixes for CVE-2022-49925 (5)

Same Patch Batch · Linux · 2025-05-01 · 245 CVEs total

CVE-2025-37750 9.8 CRITICAL smb: client: fix UAF in decryption with multichannel
CVE-2025-37778 9.8 CRITICAL ksmbd: Fix dangling pointer in krb_authenticate
CVE-2022-49770 9.8 CRITICAL ceph: avoid putting the realm twice when decoding snaps fails
CVE-2022-49931 8.8 HIGH IB/hfi1: Correctly move list in sc_disable()
CVE-2025-37776 8.8 HIGH ksmbd: fix use-after-free in smb_break_all_levII_oplock()
CVE-2025-37777 8.8 HIGH ksmbd: fix use-after-free in __smb2_lease_break_noti()
CVE-2025-37790 8.8 HIGH net: mctp: Set SOCK_RCU_FREE
CVE-2022-49910 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
CVE-2022-49886 8.4 HIGH x86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-23159 8.4 HIGH media: venus: hfi: add a check to handle OOB in sfr region
CVE-2025-37749 8.2 HIGH net: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2025-37774 7.8 HIGH slab: ensure slab->obj_exts is clear in a newly allocated slab page
CVE-2025-37789 7.8 HIGH net: openvswitch: fix nested key length validation in the set() action
CVE-2025-37779 7.8 HIGH lib/iov_iter: fix to increase non slab folio refcount
CVE-2022-49920 7.8 HIGH netfilter: nf_tables: netlink notifier might race to release objects
CVE-2022-49919 7.8 HIGH netfilter: nf_tables: release flow rule object from commit path
CVE-2025-37756 7.8 HIGH net: tls: explicitly disallow disconnect
CVE-2025-37761 7.8 HIGH drm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2025-37763 7.8 HIGH drm/imagination: take paired job reference
CVE-2025-23141 7.8 HIGH KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses

Showing top 20 of 245 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49925

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