Answer in brief
CVE-2026-89510 records a High severity (CVSS 7.8) vulnerability in RDMA/cxgb4: Cancel reg_work before freeing device on remove. 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 7.8. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <fe9c591026c576d8b1f72aab5e4cd67350530763 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <85f438382a865a4dc4c50e6b884310bb2b60fc4d || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <320e5258a53af0abc5abd9eb01519a48bab2dee8 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <a7100601aa1a39f799a566acce10db20eaf4b7f2 | fe9c591026c576d8b1f72aab5e4cd67350530763, 85f438382a865a4dc4c50e6b884310bb2b60fc4d, 320e5258a53af0abc5abd9eb01519a48bab2dee8, a7100601aa1a39f799a566acce10db20eaf4b7f2 |
| Linux/Linuxgeneric | 4.15 | Not reported |
| Linux/Linuxgeneric | >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <e6e79e7be87c5ea92728060a3d7fb56890a91e45 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <672ee1981db10569ec96030bddb322f18382ec04 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <4681e731db07769846901cfabdd3e53f765eb9d3 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <3265d558dfafab8f12f5fba06ebbf15cae9f3225 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <fe9c591026c576d8b1f72aab5e4cd67350530763 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <85f438382a865a4dc4c50e6b884310bb2b60fc4d || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <320e5258a53af0abc5abd9eb01519a48bab2dee8 || >=1c8f1da5d851b92aeb81dbbb9ebd516f6e2588f5 <a7100601aa1a39f799a566acce10db20eaf4b7f2 | e6e79e7be87c5ea92728060a3d7fb56890a91e45, 672ee1981db10569ec96030bddb322f18382ec04, 4681e731db07769846901cfabdd3e53f765eb9d3, 3265d558dfafab8f12f5fba06ebbf15cae9f3225, fe9c591026c576d8b1f72aab5e4cd67350530763, 85f438382a865a4dc4c50e6b884310bb2b60fc4d, 320e5258a53af0abc5abd9eb01519a48bab2dee8, a7100601aa1a39f799a566acce10db20eaf4b7f2 |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Cancel reg_work before freeing device on remove c4iw_uld_state_change() queues reg_work to register the RDMA device. c4iw_remove() can free ctx->dev while this work is pending or running, leaving c4iw_register_device() accessing the freed device. Cancel reg_work before removing the device. The registration work can tear down ctx->dev when registration fails, so do not unregister or deallocate it again in that case. This issue was found by an in-house static analysis tool.
Quoted source text, attributed separately from HOL analysis.