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CVE-2022-49931— IB/hfi1: Correctly move list in sc_disable()

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 hfi1 sc_disable列表移动错误，可能导致系统崩溃。

CVSS 8.8 · High EPSS 0.24% · P14

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux d997d4e4365f7e59cf6b59c70f966c56d704b64f< 25760a41e3802f54aadcc31385543665ab349b8e affected
d98883f6c33e0d960afedcecaa92fc2b61fec383< 7c4260f8f188df32414a5ecad63e8b934c2aa3f0 affected
13bac861952a78664907a0f927d3e874e9a59034< ba95409d6b580501ff6d78efd00064f7df669926 affected
13bac861952a78664907a0f927d3e874e9a59034< b8bcff99b07cc175a6ee12a52db51cdd2229586c affected
13bac861952a78664907a0f927d3e874e9a59034< 1afac08b39d85437187bb2a92d89a741b1078f55 affected
5d33bd6b4d4d035e42733592899918a18f2540da affected
5.4.157< 5.4.224 affected
5.10.77< 5.10.154 affected
… +8 more rows
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I. Basic Information for CVE-2022-49931

Vulnerability Information
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Vulnerability Title
IB/hfi1: Correctly move list in sc_disable()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Correctly move list in sc_disable() Commit 13bac861952a ("IB/hfi1: Fix abba locking issue with sc_disable()") incorrectly tries to move a list from one list head to another. The result is a kernel crash. The crash is triggered when a link goes down and there are waiters for a send to complete. The following signature is seen: BUG: kernel NULL pointer dereference, address: 0000000000000030 [...] Call Trace: sc_disable+0x1ba/0x240 [hfi1] pio_freeze+0x3d/0x60 [hfi1] handle_freeze+0x27/0x1b0 [hfi1] process_one_work+0x1b0/0x380 ? process_one_work+0x380/0x380 worker_thread+0x30/0x360 ? process_one_work+0x380/0x380 kthread+0xd7/0x100 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x1f/0x30 The fix is to use the correct call to move the list.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 hfi1 sc_disable列表移动错误，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 d997d4e4365f7e59cf6b59c70f966c56d704b64f ~ 25760a41e3802f54aadcc31385543665ab349b8e -
Linux Linux 5.15 -

II. Public POCs for CVE-2022-49931

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III. Intelligence Information for CVE-2022-49931

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Patches & Fixes for CVE-2022-49931 (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-2022-49910 8.8 HIGH Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
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-2025-23159 8.4 HIGH media: venus: hfi: add a check to handle OOB in sfr region
CVE-2022-49886 8.4 HIGH x86/tdx: Panic on bad configs that #VE on "private" memory access
CVE-2025-37749 8.2 HIGH net: ppp: Add bound checking for skb data on ppp_sync_txmung
CVE-2022-49898 7.8 HIGH btrfs: fix tree mod log mishandling of reallocated nodes
CVE-2022-49892 7.8 HIGH ftrace: Fix use-after-free for dynamic ftrace_ops
CVE-2022-49899 7.8 HIGH fscrypt: stop using keyrings subsystem for fscrypt_master_key
CVE-2025-37765 7.8 HIGH drm/nouveau: prime: fix ttm_bo_delayed_delete oops
CVE-2025-37763 7.8 HIGH drm/imagination: take paired job reference
CVE-2025-37752 7.8 HIGH net_sched: sch_sfq: move the limit validation
CVE-2022-49826 7.8 HIGH ata: libata-transport: fix double ata_host_put() in ata_tport_add()
CVE-2022-49814 7.8 HIGH kcm: close race conditions on sk_receive_queue
CVE-2025-37761 7.8 HIGH drm/xe: Fix an out-of-bounds shift when invalidating TLB
CVE-2025-37756 7.8 HIGH net: tls: explicitly disallow disconnect

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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