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Kim Phillips ccb88e9549 crypto: ccp - Fix null pointer dereference in __sev_platform_shutdown_locked 
The SEV platform device can be shutdown with a null psp_master,
e.g., using DEBUG_TEST_DRIVER_REMOVE.  Found using KASAN:

[  137.148210] ccp 0000:23:00.1: enabling device (0000 -> 0002)
[  137.162647] ccp 0000:23:00.1: no command queues available
[  137.170598] ccp 0000:23:00.1: sev enabled
[  137.174645] ccp 0000:23:00.1: psp enabled
[  137.178890] general protection fault, probably for non-canonical address 0xdffffc000000001e: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN NOPTI
[  137.182693] KASAN: null-ptr-deref in range [0x00000000000000f0-0x00000000000000f7]
[  137.182693] CPU: 93 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc1+ #311
[  137.182693] RIP: 0010:__sev_platform_shutdown_locked+0x51/0x180
[  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 <80> 3c 01 00 0f 85 fe 00 00 00 48 8b 9b f0 00 00 00 48 85 db 74 2c
[  137.182693] RSP: 0018:ffffc900000cf9b0 EFLAGS: 00010216
[  137.182693] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 000000000000001e
[  137.182693] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000000000f0
[  137.182693] RBP: ffffc900000cf9c8 R08: 0000000000000000 R09: fffffbfff58f5a66
[  137.182693] R10: ffffc900000cf9c8 R11: ffffffffac7ad32f R12: ffff8881e5052c28
[  137.182693] R13: ffff8881e5052c28 R14: ffff8881758e43e8 R15: ffffffffac64abf8
[  137.182693] FS:  0000000000000000(0000) GS:ffff889de7000000(0000) knlGS:0000000000000000
[  137.182693] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  137.182693] CR2: 0000000000000000 CR3: 0000001cf7c7e000 CR4: 0000000000350ef0
[  137.182693] Call Trace:
[  137.182693]  <TASK>
[  137.182693]  ? show_regs+0x6c/0x80
[  137.182693]  ? __die_body+0x24/0x70
[  137.182693]  ? die_addr+0x4b/0x80
[  137.182693]  ? exc_general_protection+0x126/0x230
[  137.182693]  ? asm_exc_general_protection+0x2b/0x30
[  137.182693]  ? __sev_platform_shutdown_locked+0x51/0x180
[  137.182693]  sev_firmware_shutdown.isra.0+0x1e/0x80
[  137.182693]  sev_dev_destroy+0x49/0x100
[  137.182693]  psp_dev_destroy+0x47/0xb0
[  137.182693]  sp_destroy+0xbb/0x240
[  137.182693]  sp_pci_remove+0x45/0x60
[  137.182693]  pci_device_remove+0xaa/0x1d0
[  137.182693]  device_remove+0xc7/0x170
[  137.182693]  really_probe+0x374/0xbe0
[  137.182693]  ? srso_return_thunk+0x5/0x5f
[  137.182693]  __driver_probe_device+0x199/0x460
[  137.182693]  driver_probe_device+0x4e/0xd0
[  137.182693]  __driver_attach+0x191/0x3d0
[  137.182693]  ? __pfx___driver_attach+0x10/0x10
[  137.182693]  bus_for_each_dev+0x100/0x190
[  137.182693]  ? __pfx_bus_for_each_dev+0x10/0x10
[  137.182693]  ? __kasan_check_read+0x15/0x20
[  137.182693]  ? srso_return_thunk+0x5/0x5f
[  137.182693]  ? _raw_spin_unlock+0x27/0x50
[  137.182693]  driver_attach+0x41/0x60
[  137.182693]  bus_add_driver+0x2a8/0x580
[  137.182693]  driver_register+0x141/0x480
[  137.182693]  __pci_register_driver+0x1d6/0x2a0
[  137.182693]  ? srso_return_thunk+0x5/0x5f
[  137.182693]  ? esrt_sysfs_init+0x1cd/0x5d0
[  137.182693]  ? __pfx_sp_mod_init+0x10/0x10
[  137.182693]  sp_pci_init+0x22/0x30
[  137.182693]  sp_mod_init+0x14/0x30
[  137.182693]  ? __pfx_sp_mod_init+0x10/0x10
[  137.182693]  do_one_initcall+0xd1/0x470
[  137.182693]  ? __pfx_do_one_initcall+0x10/0x10
[  137.182693]  ? parameq+0x80/0xf0
[  137.182693]  ? srso_return_thunk+0x5/0x5f
[  137.182693]  ? __kmalloc+0x3b0/0x4e0
[  137.182693]  ? kernel_init_freeable+0x92d/0x1050
[  137.182693]  ? kasan_populate_vmalloc_pte+0x171/0x190
[  137.182693]  ? srso_return_thunk+0x5/0x5f
[  137.182693]  kernel_init_freeable+0xa64/0x1050
[  137.182693]  ? __pfx_kernel_init+0x10/0x10
[  137.182693]  kernel_init+0x24/0x160
[  137.182693]  ? __switch_to_asm+0x3e/0x70
[  137.182693]  ret_from_fork+0x40/0x80
[  137.182693]  ? __pfx_kernel_init+0x10/0x10
[  137.182693]  ret_from_fork_asm+0x1b/0x30
[  137.182693]  </TASK>
[  137.182693] Modules linked in:
[  137.538483] ---[ end trace 0000000000000000 ]---

Fixes: 1b05ece0c9 ("crypto: ccp - During shutdown, check SEV data pointer before using")
Cc: stable@vger.kernel.org
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Acked-by: John Allen <john.allen@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 		2024-02-02 18:08:12 +08:00
..
allwinner crypto: sun8i-ss - Use helper to set reqsize 2023-12-29 11:25:55 +08:00
amcc crypto: crypto4xx - Remove cfb and ofb 2023-12-08 11:59:45 +08:00
amlogic crypto: amlogic - Use helper to set reqsize 2023-12-29 11:25:55 +08:00
aspeed crypto: aspeed - Remove cfb and ofb 2023-12-08 11:59:45 +08:00
axis crypto: artpec6 - Use helper to set reqsize 2023-12-29 11:25:55 +08:00
bcm crypto: bcm - Remove ofb 2023-12-08 11:59:46 +08:00
caam crypto: caam - fix asynchronous hash 2024-01-26 16:35:55 +08:00
cavium crypto: nitrox - Remove cfb 2023-12-08 11:59:46 +08:00
ccp crypto: ccp - Fix null pointer dereference in __sev_platform_shutdown_locked 2024-02-02 18:08:12 +08:00
ccree crypto: ccree - Remove ofb 2023-12-08 11:59:46 +08:00
chelsio crypto: chelsio - stop using crypto_ahash::init 2023-10-27 18:04:29 +08:00
gemini crypto: sl3516 - Use helper to set reqsize 2023-12-29 11:25:55 +08:00
hisilicon This update includes the following changes: 2024-01-10 12:23:43 -08:00
inside-secure crypto: safexcel - Remove cfb and ofb 2023-12-08 11:59:46 +08:00
intel crypto: qat - fix arbiter mapping generation algorithm for QAT 402xx 2024-01-26 16:31:45 +08:00
marvell crypto: octeontx2 - support setting ctx ilen for inline CPT LF 2023-12-29 11:25:55 +08:00
nx crypto: nx - fix build warnings when DEBUG_FS is not enabled 2023-05-24 18:12:33 +08:00
qce crypto: qce - Convert to platform remove callback returning void 2023-10-27 18:04:26 +08:00
rockchip crypto: rk3288 - Use helper to set reqsize 2023-12-29 11:25:55 +08:00
starfive crypto: starfive - Fix dev_err_probe return error 2023-12-15 17:52:53 +08:00
stm32 crypto: stm32/cryp - Use helper to set reqsize 2023-12-29 11:25:55 +08:00
virtio crypto: virtio - Wait for tasklet to complete on device remove 2023-12-22 12:30:19 +08:00
vmx crypto: vmx - Improved AES/XTS performance of 6-way unrolling for ppc 2023-09-15 18:29:45 +08:00
xilinx crypto: xilinx/zynqmp-sha - Convert to platform remove callback returning void 2023-10-27 18:04:27 +08:00
Kconfig crypto: sahara - add support for crypto_engine 2023-12-29 11:25:56 +08:00
Makefile crypto: starfive - Add crypto engine support 2023-05-19 16:46:22 +08:00
atmel-aes-regs.h
…
atmel-aes.c crypto: atmel - Remove cfb and ofb 2023-12-08 11:59:45 +08:00
atmel-authenc.h
…
atmel-ecc.c crypto: drivers - Explicitly include correct DT includes 2023-08-23 11:04:23 +08:00
atmel-i2c.c This update includes the following changes: 2023-02-21 18:10:50 -08:00
atmel-i2c.h This update includes the following changes: 2023-02-21 18:10:50 -08:00
atmel-sha-regs.h
…
atmel-sha.c crypto: atmel - remove unnecessary alignmask for ahashes 2023-10-27 18:04:28 +08:00
atmel-sha204a.c crypto: atmel - Switch i2c drivers back to use .probe() 2023-06-02 18:21:32 +08:00
atmel-tdes-regs.h
…
atmel-tdes.c crypto: atmel - Remove cfb and ofb 2023-12-08 11:59:45 +08:00
exynos-rng.c crypto: exynos-rng - Convert to platform remove callback returning void 2023-10-27 18:04:26 +08:00
geode-aes.c
…
geode-aes.h
…
hifn_795x.c crypto: hifn_795x - Remove cfb and ofb 2023-12-08 11:59:46 +08:00
img-hash.c crypto: img-hash - Convert to platform remove callback returning void 2023-10-27 18:04:26 +08:00
mxs-dcp.c crypto: mxs-dcp - remove unnecessary alignmask for ahashes 2023-10-27 18:04:28 +08:00
n2_asm.S
…
n2_core.c crypto: n2 - Remove cfb 2023-12-08 11:59:46 +08:00
n2_core.h
…
omap-aes-gcm.c crypto: omap - Use new crypto_engine_op interface 2023-08-18 17:01:11 +08:00
omap-aes.c crypto: omap-aes - Convert to platform remove callback returning void 2023-10-27 18:04:26 +08:00
omap-aes.h crypto: omap - Use new crypto_engine_op interface 2023-08-18 17:01:11 +08:00
omap-crypto.c
…
omap-crypto.h
…
omap-des.c crypto: omap-des - Convert to platform remove callback returning void 2023-10-27 18:04:26 +08:00
omap-sham.c crypto: omap-sham - stop setting alignmask for ahashes 2023-10-27 18:04:29 +08:00
padlock-aes.c
…
padlock-sha.c
…
qcom-rng.c crypto: qcom-rng - Convert to platform remove callback returning void 2023-10-27 18:04:26 +08:00
s5p-sss.c crypto: s5p-sss - remove unnecessary alignmask for ahashes 2023-10-27 18:04:28 +08:00
sa2ul.c crypto: sa2ul - Return crypto_aead_setkey to transfer the error 2023-12-01 18:03:26 +08:00
sa2ul.h crypto: sa2ul - change unsafe data size limit to 255 bytes 2023-05-19 16:45:43 +08:00
sahara.c crypto: sahara - add support for crypto_engine 2023-12-29 11:25:56 +08:00
talitos.c crypto: talitos - stop using crypto_ahash::init 2023-10-27 18:04:29 +08:00
talitos.h crypto: talitos - Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper 2022-10-21 19:05:24 +08:00