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CVE-2022-49957— kcm: fix strp_init() order and 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kcm未正确处理strp初始化顺序，可能导致锁定警告。

AI Predicted 3.3 Difficulty: Theoretical EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 22

VendorProduct Version RangeStatus
Linux Linux 44890e9ff771ef11777b2d1ebf8589255eb12502< 473f394953216614087f4179e55cdf0cf616a13b affected
e5571240236c5652f3e079b1d5866716a7ad819c< a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8 affected
e5571240236c5652f3e079b1d5866716a7ad819c< 0946ff31d1a8778787bf6708beb20f38715267cc affected
e5571240236c5652f3e079b1d5866716a7ad819c< 1b6666964ca1de93a7bf06e122bcf3616dbd33a9 affected
e5571240236c5652f3e079b1d5866716a7ad819c< 55fb8c3baa8071c5d533a9ad48624e44e2a04ef5 affected
e5571240236c5652f3e079b1d5866716a7ad819c< f865976baa85915c7672f351b74d5974b93215f6 affected
e5571240236c5652f3e079b1d5866716a7ad819c< 8fc29ff3910f3af08a7c40a75d436b5720efe2bf affected
085cbbda4b4cc7dd2ba63806346881c2c2e10107 affected
… +14 more rows
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I. Basic Information for CVE-2022-49957

Vulnerability Information
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Vulnerability Title
kcm: fix strp_init() order and cleanup
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: kcm: fix strp_init() order and cleanup strp_init() is called just a few lines above this csk->sk_user_data check, it also initializes strp->work etc., therefore, it is unnecessary to call strp_done() to cancel the freshly initialized work. And if sk_user_data is already used by KCM, psock->strp should not be touched, particularly strp->work state, so we need to move strp_init() after the csk->sk_user_data check. This also makes a lockdep warning reported by syzbot go away.
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kcm未正确处理strp初始化顺序，可能导致锁定警告。
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 44890e9ff771ef11777b2d1ebf8589255eb12502 ~ 473f394953216614087f4179e55cdf0cf616a13b -
Linux Linux 4.15 -

II. Public POCs for CVE-2022-49957

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III. Intelligence Information for CVE-2022-49957

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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

CVE-2025-38075 9.8 CRITICAL scsi: target: iscsi: Fix timeout on deleted connection
CVE-2022-50098 8.8 HIGH scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
CVE-2025-38052 8.8 HIGH net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done
CVE-2022-49934 8.8 HIGH wifi: mac80211: Fix UAF in ieee80211_scan_rx()
CVE-2022-50164 8.8 HIGH wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
CVE-2025-38016 8.8 HIGH HID: bpf: abort dispatch if device destroyed
CVE-2025-38074 8.8 HIGH vhost-scsi: protect vq->log_used with vq->mutex
CVE-2022-49974 8.8 HIGH HID: nintendo: fix rumble worker null pointer deref
CVE-2022-49968 8.0 HIGH ieee802154/adf7242: defer destroy_workqueue call
CVE-2022-49944 7.8 HIGH Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()"
CVE-2022-49952 7.8 HIGH misc: fastrpc: fix memory corruption on probe
CVE-2022-50028 7.8 HIGH gadgetfs: ep_io - wait until IRQ finishes
CVE-2022-49939 7.8 HIGH binder: fix UAF of ref->proc caused by race condition
CVE-2022-49935 7.8 HIGH dma-buf/dma-resv: check if the new fence is really later
CVE-2025-38082 7.8 HIGH gpio: virtuser: fix potential out-of-bound write
CVE-2022-50182 7.8 HIGH media: imx-jpeg: Align upwards buffer size
CVE-2025-38080 7.8 HIGH drm/amd/display: Increase block_sequence array size
CVE-2025-38060 7.8 HIGH bpf: copy_verifier_state() should copy 'loop_entry' field
CVE-2025-38062 7.8 HIGH genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie
CVE-2022-50101 7.8 HIGH video: fbdev: vt8623fb: Check the size of screen before memset_io()

Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49957

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