cbcvebase.
CVE-2025-22010
published 2025-04-08

CVE-2025-22010: In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix soft lockup during bt pages loop Driver runs a for-loop when allocating bt…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.9th percentile
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix soft lockup during bt pages loop Driver runs a for-loop when allocating bt pages and mapping them with buffer pages. When a large buffer (e.g. MR over 100GB) is being allocated, it may require a considerable loop count. This will lead to soft lockup: watchdog: BUG: soft lockup - CPU#27 stuck for 22s! ... Call trace: hem_list_alloc_mid_bt+0x124/0x394 [hns_roce_hw_v2] hns_roce_hem_list_request+0xf8/0x160 [hns_roce_hw_v2] hns_roce_mtr_create+0x2e4/0x360 [hns_roce_hw_v2] alloc_mr_pbl+0xd4/0x17c [hns_roce_hw_v2] hns_roce_reg_user_mr+0xf8/0x190 [hns_roce_hw_v2] ib_uverbs_reg_mr+0x118/0x290 watchdog: BUG: soft lockup - CPU#35 stuck for 23s! ... Call trace: hns_roce_hem_list_find_mtt+0x7c/0xb0 [hns_roce_hw_v2] mtr_map_bufs+0xc4/0x204 [hns_roce_hw_v2] hns_roce_mtr_create+0x31c/0x3c4 [hns_roce_hw_v2] alloc_mr_pbl+0xb0/0x160 [hns_roce_hw_v2] hns_roce_reg_user_mr+0x108/0x1c0 [hns_roce_hw_v2] ib_uverbs_reg_mr+0x120/0x2bc Add a cond_resched() to fix soft lockup during these loops. In order not to affect the allocation performance of normal-size buffer, set the loop count of a 100GB MR as the threshold to call cond_resched().

Affected

25 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.133-1 (bookworm)linux 6.1.133-1 (bookworm)
debianlinux-6.1< linux 6.1.133-1 (bookworm)linux 6.1.133-1 (bookworm)
linuxlinux
linuxlinux>= 38389eaa4db192648916464b60f6086d6bbaa6de < 461eb4ddede266df8f181f578732bb01742c3fd6461eb4ddede266df8f181f578732bb01742c3fd6
linuxlinux>= 38389eaa4db192648916464b60f6086d6bbaa6de < efe544462fc0b499725364f90bd0f8bbf16f861aefe544462fc0b499725364f90bd0f8bbf16f861a
linuxlinux>= 38389eaa4db192648916464b60f6086d6bbaa6de < 4104b0023ff66b5df900d23dbf38310893deca794104b0023ff66b5df900d23dbf38310893deca79
linuxlinux>= 38389eaa4db192648916464b60f6086d6bbaa6de < 975355faba56c0751292ed15a90c3e2c7dc0aad6975355faba56c0751292ed15a90c3e2c7dc0aad6
linuxlinux>= 38389eaa4db192648916464b60f6086d6bbaa6de < 13a52f6c9ff99f7d88f81da535cb4e85eade662b13a52f6c9ff99f7d88f81da535cb4e85eade662b
linuxlinux>= 38389eaa4db192648916464b60f6086d6bbaa6de < 9ab20fec7a1ce3057ad86afd27bfd08420b7cd119ab20fec7a1ce3057ad86afd27bfd08420b7cd11
linuxlinux>= 38389eaa4db192648916464b60f6086d6bbaa6de < 25655580136de59ec89f09089dd28008ea440fc925655580136de59ec89f09089dd28008ea440fc9
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.237-15.10.237-1
linuxlinux_kernel>= 0 < 6.1.133-16.1.133-1
linuxlinux_kernel>= 0 < 6.12.21-16.12.21-1
linuxlinux_kernel>= 0 < 6.12.21-16.12.21-1
linuxlinux_kernel>= 0 < 5.15.0-142.1525.15.0-142.152
linuxlinux_kernel>= 0 < 6.8.0-84.846.8.0-84.84
linuxlinux_kernel>= 5.3 < 6.1.1326.1.132
linuxlinux_kernel>= 6.13 < 6.13.96.13.9
linuxlinux_kernel>= 6.2 < 6.6.856.6.85
linuxlinux_kernel>= 6.7 < 6.12.216.12.21
msrcazl3_kernel_6.6.82.1-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.85.1-2_on_azure_linux_3.0
msrccbl2_kernel_5.15.180.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.182.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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