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

EPSS 0.02% · P6
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 3cdbe346ed3f380eae1cb3e9febfe703e7d8a7b0 ~ a25ab6dfa0ce323ec308966988be6b675eb9d3e5 -
LinuxLinux 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 · 60 CVEs total

CVE-2025-38594iommu/vt-d: Fix UAF on sva unbind with pending IOPFs
CVE-2025-38614eventpoll: Fix semi-unbounded recursion
CVE-2025-38610powercap: dtpm_cpu: Fix NULL pointer dereference in get_pd_power_uw()
CVE-2025-38609PM / devfreq: Check governor before using governor->name
CVE-2025-38608bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls
CVE-2025-38612staging: fbtft: fix potential memory leak in fbtft_framebuffer_alloc()
CVE-2025-38598drm/amdgpu: fix use-after-free in amdgpu_userq_suspend+0x51a/0x5a0
CVE-2025-38597drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port
CVE-2025-38595xen: fix UAF in dmabuf_exp_from_pages()
CVE-2025-38596drm/panthor: Fix UAF in panthor_gem_create_with_handle() debugfs code
CVE-2025-38599wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()
CVE-2025-38593Bluetooth: hci_sync: fix double free in 'hci_discovery_filter_clear()'
CVE-2025-38592Bluetooth: hci_devcd_dump: fix out-of-bounds via dev_coredumpv
CVE-2025-38591bpf: Reject narrower access to pointer ctx fields
CVE-2025-38590net/mlx5e: Remove skb secpath if xfrm state is not found
CVE-2025-38589neighbour: Fix null-ptr-deref in neigh_flush_dev().
CVE-2025-38588ipv6: prevent infinite loop in rt6_nlmsg_size()
CVE-2025-38587ipv6: fix possible infinite loop in fib6_info_uses_dev()
CVE-2025-38586bpf, arm64: Fix fp initialization for exception boundary
CVE-2025-38585staging: media: atomisp: Fix stack buffer overflow in gmin_get_var_int()

Showing top 20 of 60 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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