CVE - CVE-2025-22010

CVE-ID
CVE-2025-22010	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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().
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/13a52f6c9ff99f7d88f81da535cb4e85eade662b URL:https://git.kernel.org/stable/c/13a52f6c9ff99f7d88f81da535cb4e85eade662b MISC:https://git.kernel.org/stable/c/25655580136de59ec89f09089dd28008ea440fc9 URL:https://git.kernel.org/stable/c/25655580136de59ec89f09089dd28008ea440fc9 MISC:https://git.kernel.org/stable/c/4104b0023ff66b5df900d23dbf38310893deca79 URL:https://git.kernel.org/stable/c/4104b0023ff66b5df900d23dbf38310893deca79 MISC:https://git.kernel.org/stable/c/461eb4ddede266df8f181f578732bb01742c3fd6 URL:https://git.kernel.org/stable/c/461eb4ddede266df8f181f578732bb01742c3fd6 MISC:https://git.kernel.org/stable/c/975355faba56c0751292ed15a90c3e2c7dc0aad6 URL:https://git.kernel.org/stable/c/975355faba56c0751292ed15a90c3e2c7dc0aad6 MISC:https://git.kernel.org/stable/c/9ab20fec7a1ce3057ad86afd27bfd08420b7cd11 URL:https://git.kernel.org/stable/c/9ab20fec7a1ce3057ad86afd27bfd08420b7cd11 MISC:https://git.kernel.org/stable/c/efe544462fc0b499725364f90bd0f8bbf16f861a URL:https://git.kernel.org/stable/c/efe544462fc0b499725364f90bd0f8bbf16f861a
Assigning CNA
kernel.org
Date Record Created
20241229	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241229)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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