{"id":"CVE-2024-26695","summary":"crypto: ccp - Fix null pointer dereference in __sev_platform_shutdown_locked","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Fix null pointer dereference in __sev_platform_shutdown_locked\n\nThe SEV platform device can be shutdown with a null psp_master,\ne.g., using DEBUG_TEST_DRIVER_REMOVE.  Found using KASAN:\n\n[  137.148210] ccp 0000:23:00.1: enabling device (0000 -\u003e 0002)\n[  137.162647] ccp 0000:23:00.1: no command queues available\n[  137.170598] ccp 0000:23:00.1: sev enabled\n[  137.174645] ccp 0000:23:00.1: psp enabled\n[  137.178890] general protection fault, probably for non-canonical address 0xdffffc000000001e: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN NOPTI\n[  137.182693] KASAN: null-ptr-deref in range [0x00000000000000f0-0x00000000000000f7]\n[  137.182693] CPU: 93 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc1+ #311\n[  137.182693] RIP: 0010:__sev_platform_shutdown_locked+0x51/0x180\n[  137.182693] Code: 08 80 3c 08 00 0f 85 0e 01 00 00 48 8b 1d 67 b6 01 08 48 b8 00 00 00 00 00 fc ff df 48 8d bb f0 00 00 00 48 89 f9 48 c1 e9 03 \u003c80\u003e 3c 01 00 0f 85 fe 00 00 00 48 8b 9b f0 00 00 00 48 85 db 74 2c\n[  137.182693] RSP: 0018:ffffc900000cf9b0 EFLAGS: 00010216\n[  137.182693] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 000000000000001e\n[  137.182693] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000000000f0\n[  137.182693] RBP: ffffc900000cf9c8 R08: 0000000000000000 R09: fffffbfff58f5a66\n[  137.182693] R10: ffffc900000cf9c8 R11: ffffffffac7ad32f R12: ffff8881e5052c28\n[  137.182693] R13: ffff8881e5052c28 R14: ffff8881758e43e8 R15: ffffffffac64abf8\n[  137.182693] FS:  0000000000000000(0000) GS:ffff889de7000000(0000) knlGS:0000000000000000\n[  137.182693] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  137.182693] CR2: 0000000000000000 CR3: 0000001cf7c7e000 CR4: 0000000000350ef0\n[  137.182693] Call Trace:\n[  137.182693]  \u003cTASK\u003e\n[  137.182693]  ? show_regs+0x6c/0x80\n[  137.182693]  ? __die_body+0x24/0x70\n[  137.182693]  ? die_addr+0x4b/0x80\n[  137.182693]  ? exc_general_protection+0x126/0x230\n[  137.182693]  ? asm_exc_general_protection+0x2b/0x30\n[  137.182693]  ? __sev_platform_shutdown_locked+0x51/0x180\n[  137.182693]  sev_firmware_shutdown.isra.0+0x1e/0x80\n[  137.182693]  sev_dev_destroy+0x49/0x100\n[  137.182693]  psp_dev_destroy+0x47/0xb0\n[  137.182693]  sp_destroy+0xbb/0x240\n[  137.182693]  sp_pci_remove+0x45/0x60\n[  137.182693]  pci_device_remove+0xaa/0x1d0\n[  137.182693]  device_remove+0xc7/0x170\n[  137.182693]  really_probe+0x374/0xbe0\n[  137.182693]  ? srso_return_thunk+0x5/0x5f\n[  137.182693]  __driver_probe_device+0x199/0x460\n[  137.182693]  driver_probe_device+0x4e/0xd0\n[  137.182693]  __driver_attach+0x191/0x3d0\n[  137.182693]  ? __pfx___driver_attach+0x10/0x10\n[  137.182693]  bus_for_each_dev+0x100/0x190\n[  137.182693]  ? __pfx_bus_for_each_dev+0x10/0x10\n[  137.182693]  ? __kasan_check_read+0x15/0x20\n[  137.182693]  ? srso_return_thunk+0x5/0x5f\n[  137.182693]  ? _raw_spin_unlock+0x27/0x50\n[  137.182693]  driver_attach+0x41/0x60\n[  137.182693]  bus_add_driver+0x2a8/0x580\n[  137.182693]  driver_register+0x141/0x480\n[  137.182693]  __pci_register_driver+0x1d6/0x2a0\n[  137.182693]  ? srso_return_thunk+0x5/0x5f\n[  137.182693]  ? esrt_sysfs_init+0x1cd/0x5d0\n[  137.182693]  ? __pfx_sp_mod_init+0x10/0x10\n[  137.182693]  sp_pci_init+0x22/0x30\n[  137.182693]  sp_mod_init+0x14/0x30\n[  137.182693]  ? __pfx_sp_mod_init+0x10/0x10\n[  137.182693]  do_one_initcall+0xd1/0x470\n[  137.182693]  ? __pfx_do_one_initcall+0x10/0x10\n[  137.182693]  ? parameq+0x80/0xf0\n[  137.182693]  ? srso_return_thunk+0x5/0x5f\n[  137.182693]  ? __kmalloc+0x3b0/0x4e0\n[  137.182693]  ? kernel_init_freeable+0x92d/0x1050\n[  137.182693]  ? kasan_populate_vmalloc_pte+0x171/0x190\n[  137.182693]  ? srso_return_thunk+0x5/0x5f\n[  137.182693]  kernel_init_freeable+0xa64/0x1050\n[  137.182693]  ? __pfx_kernel_init+0x10/0x10\n[  137.182693]  kernel_init+0x24/0x160\n[  137.182693]  ? __switch_to_asm+0x3e/0x70\n[  137.182693]  ret_from_fork+0x40/0x80\n[  137.182693]  ? __pfx_kernel_init+0x1\n---truncated---","modified":"2026-04-02T10:05:35.593812Z","published":"2024-04-03T14:54:56.184Z","related":["SUSE-SU-2024:1466-1","SUSE-SU-2024:1480-1","SUSE-SU-2024:1490-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26695.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/58054faf3bd29cd0b949b77efcb6157f66f401ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7535ec350a5f09b5756a7607f5582913f21200f4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8731fe001a60581794ed9cf65da8cd304846a6fb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88aa493f393d2ee38ac140e1f6ac1881346e85d4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b5909f197f3b26aebedca7d8ac7b688fd993a266"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ccb88e9549e7cfd8bcd511c538f437e20026e983"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26695.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26695"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"87af9b0b45666ca3dd6b10c0ece691c740b0f750"},{"fixed":"58054faf3bd29cd0b949b77efcb6157f66f401ed"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f831d2882c843d44100016aeb4332e9c4b560805"},{"fixed":"7535ec350a5f09b5756a7607f5582913f21200f4"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1b05ece0c931536c0a38a9385e243a7962e933f6"},{"fixed":"8731fe001a60581794ed9cf65da8cd304846a6fb"},{"fixed":"88aa493f393d2ee38ac140e1f6ac1881346e85d4"},{"fixed":"b5909f197f3b26aebedca7d8ac7b688fd993a266"},{"fixed":"ccb88e9549e7cfd8bcd511c538f437e20026e983"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"fcb04178c05b88a98921e262da9f7cb21cfff118"},{"last_affected":"d87bbd10fc01b52c814113643f2707d2d10b0319"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26695.json"}}],"schema_version":"1.7.5"}