{"schema_version":"1.7.5","id":"CVE-2025-38439","published":"2025-07-25T15:27:18.640Z","modified":"2026-07-31T03:47:34.151401625Z","related":["SUSE-SU-2025:03272-1","SUSE-SU-2025:03290-1","SUSE-SU-2025:03301-1","SUSE-SU-2025:03382-1","SUSE-SU-2025:03602-1","SUSE-SU-2025:03633-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20653-1","SUSE-SU-2025:20669-1","SUSE-SU-2025:20739-1","SUSE-SU-2025:20756-1","SUSE-SU-2025:21074-1","SUSE-SU-2025:21139-1","SUSE-SU-2025:21179-1","SUSE-SU-2026:20560-1","openSUSE-SU-2025:20081-1"],"summary":"bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Set DMA unmap len correctly for XDP_REDIRECT\n\nWhen transmitting an XDP_REDIRECT packet, call dma_unmap_len_set()\nwith the proper length instead of 0.  This bug triggers this warning\non a system with IOMMU enabled:\n\nWARNING: CPU: 36 PID: 0 at drivers/iommu/dma-iommu.c:842 __iommu_dma_unmap+0x159/0x170\nRIP: 0010:__iommu_dma_unmap+0x159/0x170\nCode: 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\nb8 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\nRSP: 0018:ff22d31181150c88 EFLAGS: 00010206\nRAX: 0000000000002000 RBX: 00000000e13a0000 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ff22d31181150cf0 R08: ff22d31181150ca8 R09: 0000000000000000\nR10: 0000000000000000 R11: ff22d311d36c9d80 R12: 0000000000001000\nR13: ff13544d10645010 R14: ff22d31181150c90 R15: ff13544d0b2bac00\nFS: 0000000000000000(0000) GS:ff13550908a00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00005be909dacff8 CR3: 0008000173408003 CR4: 0000000000f71ef0\nPKRU: 55555554\nCall Trace:\n<IRQ>\n? show_regs+0x6d/0x80\n? __warn+0x89/0x160\n? __iommu_dma_unmap+0x159/0x170\n? report_bug+0x17e/0x1b0\n? handle_bug+0x46/0x90\n? exc_invalid_op+0x18/0x80\n? asm_exc_invalid_op+0x1b/0x20\n? __iommu_dma_unmap+0x159/0x170\n? __iommu_dma_unmap+0xb3/0x170\niommu_dma_unmap_page+0x4f/0x100\ndma_unmap_page_attrs+0x52/0x220\n? srso_alias_return_thunk+0x5/0xfbef5\n? xdp_return_frame+0x2e/0xd0\nbnxt_tx_int_xdp+0xdf/0x440 [bnxt_en]\n__bnxt_poll_work_done+0x81/0x1e0 [bnxt_en]\nbnxt_poll+0xd3/0x1e0 [bnxt_en]","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f18c2b77b2e4eec2313d519ba125bd6a069513cf"},{"fixed":"e260f4d49370c85a4701d43c6d16b8c39f8b605f"},{"fixed":"16ae306602163fcb7ae83f2701b542e43c100cee"},{"fixed":"8d672a1a6bfc81fef9151925c9c0481f4acf4bec"},{"fixed":"f9eaf6d036075dc820520e1194692c0619b7297b"},{"fixed":"5909679a82cd74cf0343d9e3ddf4b6931aa7e613"},{"fixed":"f154e41e1d9d15ab21300ba7bbf0ebb5cb3b9c2a"},{"fixed":"50dad9909715094e7d9ca25e9e0412b875987519"},{"fixed":"3cdf199d4755d477972ee87110b2aebc88b3cfad"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38439.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.3.0"},{"fixed":"5.4.296"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.240"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.146"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.99"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.39"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.15.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38439.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/16ae306602163fcb7ae83f2701b542e43c100cee"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3cdf199d4755d477972ee87110b2aebc88b3cfad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/50dad9909715094e7d9ca25e9e0412b875987519"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5909679a82cd74cf0343d9e3ddf4b6931aa7e613"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8d672a1a6bfc81fef9151925c9c0481f4acf4bec"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e260f4d49370c85a4701d43c6d16b8c39f8b605f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f154e41e1d9d15ab21300ba7bbf0ebb5cb3b9c2a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f9eaf6d036075dc820520e1194692c0619b7297b"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38439.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38439"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38439.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}