CVE-2025-38581
CVE-2025-38581CVE-2025-38581
linux / linux_kernel
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_pc
Scoring
| CVSS | 5.5 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Last modified | 2026-11-05 |