Answer in brief
CVE-2025-38439 records a Unknown severity vulnerability in bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT. The current sources do not mark it as known exploited. The current feed maps 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.
Answer in brief
CVE-2025-38439 records a Unknown severity vulnerability in bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT. The current sources do not mark it as known exploited. The current feed maps 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.
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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <e260f4d49370c85a4701d43c6d16b8c39f8b605f || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <16ae306602163fcb7ae83f2701b542e43c100cee || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <8d672a1a6bfc81fef9151925c9c0481f4acf4bec || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <f9eaf6d036075dc820520e1194692c0619b7297b || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <5909679a82cd74cf0343d9e3ddf4b6931aa7e613 || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <f154e41e1d9d15ab21300ba7bbf0ebb5cb3b9c2a || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <50dad9909715094e7d9ca25e9e0412b875987519 || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <3cdf199d4755d477972ee87110b2aebc88b3cfad | e260f4d49370c85a4701d43c6d16b8c39f8b605f, 16ae306602163fcb7ae83f2701b542e43c100cee, 8d672a1a6bfc81fef9151925c9c0481f4acf4bec, f9eaf6d036075dc820520e1194692c0619b7297b, 5909679a82cd74cf0343d9e3ddf4b6931aa7e613, f154e41e1d9d15ab21300ba7bbf0ebb5cb3b9c2a, 50dad9909715094e7d9ca25e9e0412b875987519, 3cdf199d4755d477972ee87110b2aebc88b3cfad |
| Linux/Linuxgeneric | 5.3 | Not reported |
Published upstream
Jul 25, 2025
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: bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT When transmitting an XDP_REDIRECT packet, call dma_unmap_len_set() with the proper length instead of 0. This bug triggers this warning on a system with IOMMU enabled: WARNING: CPU: 36 PID: 0 at drivers/iommu/dma-iommu.c:842 __iommu_dma_unmap+0x159/0x170 RIP: 0010:__iommu_dma_unmap+0x159/0x170 Code: a8 00 00 00 00 48 c7 45 b0 00 00 00 00 48 c7 45 c8 00 00 00 00 48 c7 45 a0 ff ff ff ff 4c 89 45 b8 4c 89 45 c0 e9 77 ff ff ff <0f> 0b e9 60 ff ff ff e8 8b bf 6a 00 66 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ff22d31181150c88 EFLAGS: 00010206 RAX: 0000000000002000 RBX: 00000000e13a0000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ff22d31181150cf0 R08: ff22d31181150ca8 R09: 0000000000000000 R10: 0000000000000000 R11: ff22d311d36c9d80 R12: 0000000000001000 R13: ff13544d10645010 R14: ff22d31181150c90 R15: ff13544d0b2bac00 FS: 0000000000000000(0000) GS:ff13550908a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005be909dacff8 CR3: 0008000173408003 CR4: 0000000000f71ef0 PKRU: 55555554 Call Trace: <IRQ> ? show_regs+0x6d/0x80 ? __warn+0x89/0x160 ? __iommu_dma_unmap+0x159/0x170 ? report_bug+0x17e/0x1b0 ? handle_bug+0x46/0x90 ? exc_invalid_op+0x18/0x80 ? asm_exc_invalid_op+0x1b/0x20 ? __iommu_dma_unmap+0x159/0x170 ? __iommu_dma_unmap+0xb3/0x170 iommu_dma_unmap_page+0x4f/0x100 dma_unmap_page_attrs+0x52/0x220 ? srso_alias_return_thunk+0x5/0xfbef5 ? xdp_return_frame+0x2e/0xd0 bnxt_tx_int_xdp+0xdf/0x440 [bnxt_en] __bnxt_poll_work_done+0x81/0x1e0 [bnxt_en] bnxt_poll+0xd3/0x1e0 [bnxt_en]
Quoted source text, attributed separately from HOL analysis.
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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <e260f4d49370c85a4701d43c6d16b8c39f8b605f || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <16ae306602163fcb7ae83f2701b542e43c100cee || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <8d672a1a6bfc81fef9151925c9c0481f4acf4bec || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <f9eaf6d036075dc820520e1194692c0619b7297b || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <5909679a82cd74cf0343d9e3ddf4b6931aa7e613 || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <f154e41e1d9d15ab21300ba7bbf0ebb5cb3b9c2a || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <50dad9909715094e7d9ca25e9e0412b875987519 || >=f18c2b77b2e4eec2313d519ba125bd6a069513cf <3cdf199d4755d477972ee87110b2aebc88b3cfad | e260f4d49370c85a4701d43c6d16b8c39f8b605f, 16ae306602163fcb7ae83f2701b542e43c100cee, 8d672a1a6bfc81fef9151925c9c0481f4acf4bec, f9eaf6d036075dc820520e1194692c0619b7297b, 5909679a82cd74cf0343d9e3ddf4b6931aa7e613, f154e41e1d9d15ab21300ba7bbf0ebb5cb3b9c2a, 50dad9909715094e7d9ca25e9e0412b875987519, 3cdf199d4755d477972ee87110b2aebc88b3cfad |
| Linux/Linuxgeneric | 5.3 | Not reported |
Published upstream
Jul 25, 2025
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: bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT When transmitting an XDP_REDIRECT packet, call dma_unmap_len_set() with the proper length instead of 0. This bug triggers this warning on a system with IOMMU enabled: WARNING: CPU: 36 PID: 0 at drivers/iommu/dma-iommu.c:842 __iommu_dma_unmap+0x159/0x170 RIP: 0010:__iommu_dma_unmap+0x159/0x170 Code: a8 00 00 00 00 48 c7 45 b0 00 00 00 00 48 c7 45 c8 00 00 00 00 48 c7 45 a0 ff ff ff ff 4c 89 45 b8 4c 89 45 c0 e9 77 ff ff ff <0f> 0b e9 60 ff ff ff e8 8b bf 6a 00 66 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ff22d31181150c88 EFLAGS: 00010206 RAX: 0000000000002000 RBX: 00000000e13a0000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ff22d31181150cf0 R08: ff22d31181150ca8 R09: 0000000000000000 R10: 0000000000000000 R11: ff22d311d36c9d80 R12: 0000000000001000 R13: ff13544d10645010 R14: ff22d31181150c90 R15: ff13544d0b2bac00 FS: 0000000000000000(0000) GS:ff13550908a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005be909dacff8 CR3: 0008000173408003 CR4: 0000000000f71ef0 PKRU: 55555554 Call Trace: <IRQ> ? show_regs+0x6d/0x80 ? __warn+0x89/0x160 ? __iommu_dma_unmap+0x159/0x170 ? report_bug+0x17e/0x1b0 ? handle_bug+0x46/0x90 ? exc_invalid_op+0x18/0x80 ? asm_exc_invalid_op+0x1b/0x20 ? __iommu_dma_unmap+0x159/0x170 ? __iommu_dma_unmap+0xb3/0x170 iommu_dma_unmap_page+0x4f/0x100 dma_unmap_page_attrs+0x52/0x220 ? srso_alias_return_thunk+0x5/0xfbef5 ? xdp_return_frame+0x2e/0xd0 bnxt_tx_int_xdp+0xdf/0x440 [bnxt_en] __bnxt_poll_work_done+0x81/0x1e0 [bnxt_en] bnxt_poll+0xd3/0x1e0 [bnxt_en]
Quoted source text, attributed separately from HOL analysis.