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CVE-2025-38439— bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT

AI Predicted 5.5 Difficulty: Easy EPSS 0.17% · P7

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxf18c2b77b2e4eec2313d519ba125bd6a069513cf< e260f4d49370c85a4701d43c6d16b8c39f8b605faffected
f18c2b77b2e4eec2313d519ba125bd6a069513cf< 16ae306602163fcb7ae83f2701b542e43c100ceeaffected
f18c2b77b2e4eec2313d519ba125bd6a069513cf< 8d672a1a6bfc81fef9151925c9c0481f4acf4becaffected
f18c2b77b2e4eec2313d519ba125bd6a069513cf< f9eaf6d036075dc820520e1194692c0619b7297baffected
f18c2b77b2e4eec2313d519ba125bd6a069513cf< 5909679a82cd74cf0343d9e3ddf4b6931aa7e613affected
f18c2b77b2e4eec2313d519ba125bd6a069513cf< f154e41e1d9d15ab21300ba7bbf0ebb5cb3b9c2aaffected
f18c2b77b2e4eec2313d519ba125bd6a069513cf< 50dad9909715094e7d9ca25e9e0412b875987519affected
f18c2b77b2e4eec2313d519ba125bd6a069513cf< 3cdf199d4755d477972ee87110b2aebc88b3cfadaffected
… +10 more rows
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I. Basic Information for CVE-2025-38439

Vulnerability Information
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Vulnerability Title
bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT
Source: NVD (National Vulnerability Database)
Vulnerability Description
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]
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XDP_REDIRECT传输时DMA取消映射长度设置错误，可能导致警告。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux f18c2b77b2e4eec2313d519ba125bd6a069513cf ~ e260f4d49370c85a4701d43c6d16b8c39f8b605f -
LinuxLinux 5.3 -

II. Public POCs for CVE-2025-38439

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III. Intelligence Information for CVE-2025-38439

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Same Patch Batch · Linux · 2025-07-25 · 114 CVEs total

CVE-2025-38424perf: Fix sample vs do_exit()
CVE-2025-38438ASoC: SOF: Intel: hda: Use devm_kstrdup() to avoid memleak.
CVE-2025-38437ksmbd: fix potential use-after-free in oplock/lease break ack
CVE-2025-38436drm/scheduler: signal scheduled fence when kill job
CVE-2025-38435riscv: vector: Fix context save/restore with xtheadvector
CVE-2025-38434Revert "riscv: Define TASK_SIZE_MAX for __access_ok()"
CVE-2025-38433riscv: fix runtime constant support for nommu kernels
CVE-2025-38432net: netpoll: Initialize UDP checksum field before checksumming
CVE-2025-38431smb: client: fix regression with native SMB symlinks
CVE-2025-38430nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request
CVE-2025-38429bus: mhi: ep: Update read pointer only after buffer is written
CVE-2025-38428Input: ims-pcu - check record size in ims_pcu_flash_firmware()
CVE-2025-38427video: screen_info: Relocate framebuffers behind PCI bridges
CVE-2025-38425i2c: tegra: check msg length in SMBUS block read
CVE-2025-38426drm/amdgpu: Add basic validation for RAS header
CVE-2025-38413virtio-net: xsk: rx: fix the frame's length check
CVE-2025-38416NFC: nci: uart: Set tty->disc_data only in success path
CVE-2025-38415Squashfs: check return result of sb_min_blocksize
CVE-2025-38414wifi: ath12k: fix GCC_GCC_PCIE_HOT_RST definition for WCN7850
CVE-2025-38417ice: fix eswitch code memory leak in reset scenario

Showing top 20 of 114 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38439

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