Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-38067— rseq: Fix segfault on registration when rseq_cs is non-zero

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rseq在注册时非零rseq_cs导致段错误。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.58% · P47

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux d7822b1e24f2df5df98c76f0e94a5416349ff759< 48900d839a3454050fd5822e34be8d54c4ec9b86 affected
d7822b1e24f2df5df98c76f0e94a5416349ff759< 3e4028ef31b69286c9d4878cee0330235f53f218 affected
d7822b1e24f2df5df98c76f0e94a5416349ff759< b2b05d0dc2f4f0646922068af435aed5763d16ba affected
d7822b1e24f2df5df98c76f0e94a5416349ff759< eaf112069a904b6207b4106ff083e0208232a2eb affected
d7822b1e24f2df5df98c76f0e94a5416349ff759< f004f58d18a2d3dc761cf973ad27b4a5997bd876 affected
d7822b1e24f2df5df98c76f0e94a5416349ff759< 2df285dab00fa03a3ef939b6cb0d0d0aeb0791db affected
d7822b1e24f2df5df98c76f0e94a5416349ff759< fd881d0a085fc54354414aed990ccf05f282ba53 affected
4.18 affected
… +8 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-38067

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
rseq: Fix segfault on registration when rseq_cs is non-zero
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: rseq: Fix segfault on registration when rseq_cs is non-zero The rseq_cs field is documented as being set to 0 by user-space prior to registration, however this is not currently enforced by the kernel. This can result in a segfault on return to user-space if the value stored in the rseq_cs field doesn't point to a valid struct rseq_cs. The correct solution to this would be to fail the rseq registration when the rseq_cs field is non-zero. However, some older versions of glibc will reuse the rseq area of previous threads without clearing the rseq_cs field and will also terminate the process if the rseq registration fails in a secondary thread. This wasn't caught in testing because in this case the leftover rseq_cs does point to a valid struct rseq_cs. What we can do is clear the rseq_cs field on registration when it's non-zero which will prevent segfaults on registration and won't break the glibc versions that reuse rseq areas on thread creation.
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rseq在注册时非零rseq_cs导致段错误。
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 d7822b1e24f2df5df98c76f0e94a5416349ff759 ~ 48900d839a3454050fd5822e34be8d54c4ec9b86 -
Linux Linux 4.18 -

II. Public POCs for CVE-2025-38067

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-38067

请登录查看更多情报信息。

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-2025-38074 8.8 HIGH vhost-scsi: protect vq->log_used with vq->mutex
CVE-2025-38016 8.8 HIGH HID: bpf: abort dispatch if device destroyed
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-2022-50035 7.8 HIGH drm/amdgpu: Fix use-after-free on amdgpu_bo_list mutex
CVE-2022-49944 7.8 HIGH Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()"
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-2022-50182 7.8 HIGH media: imx-jpeg: Align upwards buffer size
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-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-2025-38067

No comments yet

Leave a comment