Answer in brief
CVE-2024-47696 records a Unknown severity vulnerability in RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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), Siemens/RUGGEDCOM RST2428P (generic), Siemens/SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d91d253c87fd1efece521ff2612078a35af673c6 <da2708a19f45b4a7278adf523837c8db21d1e2b5 || >=7f25f296fc9bd0435be14e89bf657cd615a23574 <29b3bbd912b8db86df7a3c180b910ccb621f5635 || >=94ee7ff99b87435ec63211f632918dc7f44dac79 <2efe8da2ddbf873385b4bc55366d09350b408df6 || >=557d035fe88d78dd51664f4dc0e1896c04c97cf6 <da0392698c62397c19deb1b9e9bdf2fbb5a9420e || >=dc8074b8901caabb97c2d353abd6b4e7fa5a59a5 <a64f30db12bdc937c5108158d98c8eab1925c548 || >=ff5bbbdee08287d75d72e65b72a2b76d9637892a <8b7df76356d098f85f3bd2c7cf6fb43f531893d7 || >=ee39384ee787e86e9db4efb843818ef0ea9cb8ae <c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58 || >=aee2424246f9f1dadc33faa78990c1e2eb7826e4 <a09dc967b3c58899e259c0aea092f421d22a0b04 || >=aee2424246f9f1dadc33faa78990c1e2eb7826e4 <86dfdd8288907f03c18b7fb462e0e232c4f98d89 || >=4.19.320 <4.19.323 || >=5.4.282 <5.4.285 || >=5.10.224 <5.10.227 || >=5.15.165 <5.15.168 || >=6.1.103 <6.1.113 || >=6.6.44 <6.6.54 || >=6.10.3 <6.10.13 | da2708a19f45b4a7278adf523837c8db21d1e2b5, 29b3bbd912b8db86df7a3c180b910ccb621f5635, 2efe8da2ddbf873385b4bc55366d09350b408df6, da0392698c62397c19deb1b9e9bdf2fbb5a9420e, a64f30db12bdc937c5108158d98c8eab1925c548, 8b7df76356d098f85f3bd2c7cf6fb43f531893d7, c8b18a75282cfd27822a8cc3c1f005c1ac8d1a58, a09dc967b3c58899e259c0aea092f421d22a0b04, 86dfdd8288907f03c18b7fb462e0e232c4f98d89, 4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113, 6.6.54, 6.10.13 |
| Linux/Linuxgeneric | 6.11 | Not reported |
| Siemens/RUGGEDCOM RST2428Pgeneric | >=0 <V3.2 | V3.2 |
| Siemens/SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familygeneric | >=0 <V3.2 | V3.2 |
| Siemens/SCALANCE XCM-/XRM-/XCH-/XRH-300 familygeneric | >=0 <V3.2 | V3.2 |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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: RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency In the commit aee2424246f9 ("RDMA/iwcm: Fix a use-after-free related to destroying CM IDs"), the function flush_workqueue is invoked to flush the work queue iwcm_wq. But at that time, the work queue iwcm_wq was created via the function alloc_ordered_workqueue without the flag WQ_MEM_RECLAIM. Because the current process is trying to flush the whole iwcm_wq, if iwcm_wq doesn't have the flag WQ_MEM_RECLAIM, verify that the current process is not reclaiming memory or running on a workqueue which doesn't have the flag WQ_MEM_RECLAIM as that can break forward-progress guarantee leading to a deadlock. The call trace is as below: [ 125.350876][ T1430] Call Trace: [ 125.356281][ T1430] <TASK> [ 125.361285][ T1430] ? __warn (kernel/panic.c:693) [ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219) [ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239) [ 125.388987][ T1430] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1)) [ 125.395831][ T1430] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) [ 125.403125][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.410984][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.418764][ T1430] __flush_workqueue (kernel/workqueue.c:3970) [ 125.426021][ T1430] ? __pfx___might_resched (kernel/sched/core.c:10151) [ 125.433431][ T1430] ? destroy_cm_id (drivers/infiniband/core/iwcm.c:375) iw_cm [ 125.441209][ T1430] ? __pfx___flush_workqueue (kernel/workqueue.c:3910) [ 125.473900][ T1430] ? _raw_spin_lock_irqsave (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 include/linux/spinlock.h:187 include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162) [ 125.473909][ T1430] ? __pfx__raw_spin_lock_irqsave (kernel/locking/spinlock.c:161) [ 125.482537][ T1430] _destroy_id (drivers/infiniband/core/cma.c:2044) rdma_cm [ 125.495072][ T1430] nvme_rdma_free_queue (drivers/nvme/host/rdma.c:656 drivers/nvme/host/rdma.c:650) nvme_rdma [ 125.505827][ T1430] nvme_rdma_reset_ctrl_work (drivers/nvme/host/rdma.c:2180) nvme_rdma [ 125.505831][ T1430] process_one_work (kernel/workqueue.c:3231) [ 125.515122][ T1430] worker_thread (kernel/workqueue.c:3306 kernel/workqueue.c:3393) [ 125.515127][ T1430] ? __pfx_worker_thread (kernel/workqueue.c:3339) [ 125.531837][ T1430] kthread (kernel/kthread.c:389) [ 125.539864][ T1430] ? __pfx_kthread (kernel/kthread.c:342) [ 125.550628][ T1430] ret_from_fork (arch/x86/kernel/process.c:147) [ 125.558840][ T1430] ? __pfx_kthread (kernel/kthread.c:342) [ 125.558844][ T1430] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) [ 125.566487][ T1430] </TASK> [ 125.566488][ T1430] ---[ end trace 0000000000000000 ]---
Quoted source text, attributed separately from HOL analysis.