CVE-2025-21662— net/mlx5: Fix variable not being completed when function returns
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I. Basic Information for CVE-2025-21662
Vulnerability Information
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Vulnerability Title
net/mlx5: Fix variable not being completed when function returns
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix variable not being completed when function returns When cmd_alloc_index(), fails cmd_work_handler() needs to complete ent->slotted before returning early. Otherwise the task which issued the command may hang: mlx5_core 0000:01:00.0: cmd_work_handler:877:(pid 3880418): failed to allocate command entry INFO: task kworker/13:2:4055883 blocked for more than 120 seconds. Not tainted 4.19.90-25.44.v2101.ky10.aarch64 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/13:2 D 0 4055883 2 0x00000228 Workqueue: events mlx5e_tx_dim_work [mlx5_core] Call trace: __switch_to+0xe8/0x150 __schedule+0x2a8/0x9b8 schedule+0x2c/0x88 schedule_timeout+0x204/0x478 wait_for_common+0x154/0x250 wait_for_completion+0x28/0x38 cmd_exec+0x7a0/0xa00 [mlx5_core] mlx5_cmd_exec+0x54/0x80 [mlx5_core] mlx5_core_modify_cq+0x6c/0x80 [mlx5_core] mlx5_core_modify_cq_moderation+0xa0/0xb8 [mlx5_core] mlx5e_tx_dim_work+0x54/0x68 [mlx5_core] process_one_work+0x1b0/0x448 worker_thread+0x54/0x468 kthread+0x134/0x138 ret_from_fork+0x10/0x18
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于net/mlx5模块中cmd_alloc_index失败时未正确完成ent->slotted。这可能导致任务挂起或系统响应延迟。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-21662
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Same Patch Batch · Linux · 2025-01-21 · 25 CVEs total
| CVE-2024-57943 | exfat: fix the new buffer was not zeroed before writing | |
| CVE-2024-57946 | virtio-blk: don't keep queue frozen during system suspend | |
| CVE-2025-21664 | dm thin: make get_first_thin use rcu-safe list first function | |
| CVE-2025-21663 | net: stmmac: dwmac-tegra: Read iommu stream id from device tree | |
| CVE-2025-21661 | gpio: virtuser: fix missing lookup table cleanups | |
| CVE-2025-21660 | ksmbd: fix unexpectedly changed path in ksmbd_vfs_kern_path_locked | |
| CVE-2025-21659 | netdev: prevent accessing NAPI instances from another namespace | |
| CVE-2025-21658 | btrfs: avoid NULL pointer dereference if no valid extent tree | |
| CVE-2025-21657 | sched_ext: Replace rq_lock() to raw_spin_rq_lock() in scx_ops_bypass() | |
| CVE-2024-57945 | riscv: mm: Fix the out of bound issue of vmemmap address | |
| CVE-2025-21656 | hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur | |
| CVE-2024-57944 | iio: adc: ti-ads1298: Add NULL check in ads1298_init | |
| CVE-2024-57930 | tracing: Have process_string() also allow arrays | |
| CVE-2024-57942 | netfs: Fix ceph copy to cache on write-begin | |
| CVE-2024-57941 | netfs: Fix the (non-)cancellation of copy when cache is temporarily disabled | |
| CVE-2024-57940 | exfat: fix the infinite loop in exfat_readdir() | |
| CVE-2024-57939 | riscv: Fix sleeping in invalid context in die() | |
| CVE-2024-57938 | net/sctp: Prevent autoclose integer overflow in sctp_association_init() | |
| CVE-2024-57936 | RDMA/bnxt_re: Fix max SGEs for the Work Request | |
| CVE-2024-57935 | RDMA/hns: Fix accessing invalid dip_ctx during destroying QP |
Showing top 20 of 25 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
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