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synced 2024-08-29 04:09:39 +00:00
12bcaf87d8
Lock grab occurs in a concurrent scenario, resulting in stepping on a NULL
pointer. It should be init mutex_init() first before use the lock.
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Call trace:
__mutex_lock.constprop.0+0xd0/0x5c0
__mutex_lock_slowpath+0x1c/0x2c
mutex_lock+0x44/0x50
free_mr_send_cmd_to_hw+0x7c/0x1c0 [hns_roce_hw_v2]
hns_roce_v2_dereg_mr+0x30/0x40 [hns_roce_hw_v2]
hns_roce_dereg_mr+0x4c/0x130 [hns_roce_hw_v2]
ib_dereg_mr_user+0x54/0x124
uverbs_free_mr+0x24/0x30
destroy_hw_idr_uobject+0x38/0x74
uverbs_destroy_uobject+0x48/0x1c4
uobj_destroy+0x74/0xcc
ib_uverbs_cmd_verbs+0x368/0xbb0
ib_uverbs_ioctl+0xec/0x1a4
__arm64_sys_ioctl+0xb4/0x100
invoke_syscall+0x50/0x120
el0_svc_common.constprop.0+0x58/0x190
do_el0_svc+0x30/0x90
el0_svc+0x2c/0xb4
el0t_64_sync_handler+0x1a4/0x1b0
el0t_64_sync+0x19c/0x1a0
Fixes:
|
||
|---|---|---|
| .. | ||
| hns_roce_ah.c | ||
| hns_roce_alloc.c | ||
| hns_roce_cmd.c | ||
| hns_roce_cmd.h | ||
| hns_roce_common.h | ||
| hns_roce_cq.c | ||
| hns_roce_db.c | ||
| hns_roce_device.h | ||
| hns_roce_hem.c | ||
| hns_roce_hem.h | ||
| hns_roce_hw_v2.c | ||
| hns_roce_hw_v2.h | ||
| hns_roce_main.c | ||
| hns_roce_mr.c | ||
| hns_roce_pd.c | ||
| hns_roce_qp.c | ||
| hns_roce_restrack.c | ||
| hns_roce_srq.c | ||
| Kconfig | ||
| Makefile | ||