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CVE-2025-38581— crypto: ccp - Fix crash when rebind ccp device for ccp.ko

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crypto: ccp模块在重新绑定设备时可能导致空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< a25ab6dfa0ce323ec308966988be6b675eb9d3e5 affected
3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< ce63a83925964ab7564bd216bd92b80bc365492e affected
3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< 20c0ed8dd65834e6bab464f54cd6ff68659bacb9 affected
3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< 2d4060f05e74dbee884ba723f6afd9282befc3c5 affected
3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< db111468531777cac8b4beb6515a88a54b0c4a74 affected
3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< 9dea08eac4f6d6fbbae59992978252e2edab995d affected
3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< 6eadf50c1d894cb34f3237064063207460946040 affected
3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0< 64ec9a7e7a6398b172ab6feba60e952163a1c3d5 affected
… +12 more rows
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I. Basic Information for CVE-2025-38581

Vulnerability Information
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Vulnerability Title
crypto: ccp - Fix crash when rebind ccp device for ccp.ko
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix crash when rebind ccp device for ccp.ko When CONFIG_CRYPTO_DEV_CCP_DEBUGFS is enabled, rebinding the ccp device causes the following crash: $ echo '0000:0a:00.2' > /sys/bus/pci/drivers/ccp/unbind $ echo '0000:0a:00.2' > /sys/bus/pci/drivers/ccp/bind [ 204.976930] BUG: kernel NULL pointer dereference, address: 0000000000000098 [ 204.978026] #PF: supervisor write access in kernel mode [ 204.979126] #PF: error_code(0x0002) - not-present page [ 204.980226] PGD 0 P4D 0 [ 204.981317] Oops: Oops: 0002 [#1] SMP NOPTI ... [ 204.997852] Call Trace: [ 204.999074] <TASK> [ 205.000297] start_creating+0x9f/0x1c0 [ 205.001533] debugfs_create_dir+0x1f/0x170 [ 205.002769] ? srso_return_thunk+0x5/0x5f [ 205.004000] ccp5_debugfs_setup+0x87/0x170 [ccp] [ 205.005241] ccp5_init+0x8b2/0x960 [ccp] [ 205.006469] ccp_dev_init+0xd4/0x150 [ccp] [ 205.007709] sp_init+0x5f/0x80 [ccp] [ 205.008942] sp_pci_probe+0x283/0x2e0 [ccp] [ 205.010165] ? srso_return_thunk+0x5/0x5f [ 205.011376] local_pci_probe+0x4f/0xb0 [ 205.012584] pci_device_probe+0xdb/0x230 [ 205.013810] really_probe+0xed/0x380 [ 205.015024] __driver_probe_device+0x7e/0x160 [ 205.016240] device_driver_attach+0x2f/0x60 [ 205.017457] bind_store+0x7c/0xb0 [ 205.018663] drv_attr_store+0x28/0x40 [ 205.019868] sysfs_kf_write+0x5f/0x70 [ 205.021065] kernfs_fop_write_iter+0x145/0x1d0 [ 205.022267] vfs_write+0x308/0x440 [ 205.023453] ksys_write+0x6d/0xe0 [ 205.024616] __x64_sys_write+0x1e/0x30 [ 205.025778] x64_sys_call+0x16ba/0x2150 [ 205.026942] do_syscall_64+0x56/0x1e0 [ 205.028108] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 205.029276] RIP: 0033:0x7fbc36f10104 [ 205.030420] Code: 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 8d 05 e1 08 2e 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 f3 c3 66 90 41 54 55 49 89 d4 53 48 89 f5 This patch sets ccp_debugfs_dir to NULL after destroying it in ccp5_debugfs_destroy, allowing the directory dentry to be recreated when rebinding the ccp device. Tested on AMD Ryzen 7 1700X.
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crypto: ccp模块在重新绑定设备时可能导致空指针取消引用。
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 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0 ~ a25ab6dfa0ce323ec308966988be6b675eb9d3e5 -
Linux Linux 4.13 -

II. Public POCs for CVE-2025-38581

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III. Intelligence Information for CVE-2025-38581

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Same Patch Batch · Linux · 2025-08-19 · 59 CVEs total

CVE-2025-38561 9.8 CRITICAL ksmbd: fix Preauh_HashValue race condition
CVE-2025-38566 9.8 CRITICAL sunrpc: fix handling of server side tls alerts
CVE-2025-38560 9.3 CRITICAL x86/sev: Evict cache lines during SNP memory validation
CVE-2025-38601 8.8 HIGH wifi: ath11k: clear initialized flag for deinit-ed srng lists
CVE-2025-38600 8.8 HIGH wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan()
CVE-2025-38599 8.8 HIGH wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()
CVE-2025-38592 8.8 HIGH Bluetooth: hci_devcd_dump: fix out-of-bounds via dev_coredumpv
CVE-2025-38608 8.6 HIGH bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls
CVE-2025-38574 8.6 HIGH pptp: ensure minimal skb length in pptp_xmit()
CVE-2025-38571 8.2 HIGH sunrpc: fix client side handling of tls alerts
CVE-2025-38615 7.8 HIGH fs/ntfs3: cancle set bad inode after removing name fails
CVE-2025-38579 7.8 HIGH f2fs: fix KMSAN uninit-value in extent_info usage
CVE-2025-38604 7.8 HIGH wifi: rtl818x: Kill URBs before clearing tx status queue
CVE-2025-38607 7.8 HIGH bpf: handle jset (if a & b ...) as a jump in CFG computation
CVE-2025-38614 7.8 HIGH eventpoll: Fix semi-unbounded recursion
CVE-2025-38593 7.8 HIGH Bluetooth: hci_sync: fix double free in 'hci_discovery_filter_clear()'
CVE-2025-38586 7.8 HIGH bpf, arm64: Fix fp initialization for exception boundary
CVE-2025-38582 7.8 HIGH RDMA/hns: Fix double destruction of rsv_qp
CVE-2025-38580 7.8 HIGH ext4: fix inode use after free in ext4_end_io_rsv_work()
CVE-2025-38555 7.8 HIGH usb: gadget : fix use-after-free in composite_dev_cleanup()

Showing top 20 of 59 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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