Answer in brief
CVE-2024-56641 records a High severity (CVSS 7.5) vulnerability in net/smc: initialize close_work early to avoid warning. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=46c28dbd4c23c3f7fa37f5ea48772af79c9cc40e <f0c37002210aaede10dae849d1a78efc2243add2 || >=46c28dbd4c23c3f7fa37f5ea48772af79c9cc40e <6638e52dcfafaf1b9cbc34544f0c832db0069ea1 || >=46c28dbd4c23c3f7fa37f5ea48772af79c9cc40e <0541db8ee32c09463a72d0987382b3a3336b0043 | f0c37002210aaede10dae849d1a78efc2243add2, 6638e52dcfafaf1b9cbc34544f0c832db0069ea1, 0541db8ee32c09463a72d0987382b3a3336b0043 |
| Linux/Linuxgeneric | 4.12 | Not reported |
| Linux/Linuxgeneric | >=46c28dbd4c23c3f7fa37f5ea48772af79c9cc40e <d3909a85414041c2a4d147ae5589767d58ee794b || >=46c28dbd4c23c3f7fa37f5ea48772af79c9cc40e <f0c37002210aaede10dae849d1a78efc2243add2 || >=46c28dbd4c23c3f7fa37f5ea48772af79c9cc40e <6638e52dcfafaf1b9cbc34544f0c832db0069ea1 || >=46c28dbd4c23c3f7fa37f5ea48772af79c9cc40e <0541db8ee32c09463a72d0987382b3a3336b0043 | d3909a85414041c2a4d147ae5589767d58ee794b, f0c37002210aaede10dae849d1a78efc2243add2, 6638e52dcfafaf1b9cbc34544f0c832db0069ea1, 0541db8ee32c09463a72d0987382b3a3336b0043 |
Published upstream
Dec 27, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: net/smc: initialize close_work early to avoid warning We encountered a warning that close_work was canceled before initialization. WARNING: CPU: 7 PID: 111103 at kernel/workqueue.c:3047 __flush_work+0x19e/0x1b0 Workqueue: events smc_lgr_terminate_work [smc] RIP: 0010:__flush_work+0x19e/0x1b0 Call Trace: ? __wake_up_common+0x7a/0x190 ? work_busy+0x80/0x80 __cancel_work_timer+0xe3/0x160 smc_close_cancel_work+0x1a/0x70 [smc] smc_close_active_abort+0x207/0x360 [smc] __smc_lgr_terminate.part.38+0xc8/0x180 [smc] process_one_work+0x19e/0x340 worker_thread+0x30/0x370 ? process_one_work+0x340/0x340 kthread+0x117/0x130 ? __kthread_cancel_work+0x50/0x50 ret_from_fork+0x22/0x30 This is because when smc_close_cancel_work is triggered, e.g. the RDMA driver is rmmod and the LGR is terminated, the conn->close_work is flushed before initialization, resulting in WARN_ON(!work->func). __smc_lgr_terminate | smc_connect_{rdma|ism} ------------------------------------------------------------- | smc_conn_create | \- smc_lgr_register_conn for conn in lgr->conns_all | \- smc_conn_kill | \- smc_close_active_abort | \- smc_close_cancel_work | \- cancel_work_sync | \- __flush_work | (close_work) | | smc_close_init | \- INIT_WORK(&close_work) So fix this by initializing close_work before establishing the connection.
Quoted source text, attributed separately from HOL analysis.