{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-49983", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49983", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-06-18T11:00:45.701Z", "updatedAt": "2026-08-15T12:23:03.349Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "udmabuf: Set the DMA mask for the udmabuf device (v2)", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nudmabuf: Set the DMA mask for the udmabuf device (v2)\n\nIf the DMA mask is not set explicitly, the following warning occurs\nwhen the userspace tries to access the dma-buf via the CPU as\nreported by syzbot here:\n\nWARNING: CPU: 1 PID: 3595 at kernel/dma/mapping.c:188\n__dma_map_sg_attrs+0x181/0x1f0 kernel/dma/mapping.c:188\nModules linked in:\nCPU: 0 PID: 3595 Comm: syz-executor249 Not tainted\n5.17.0-rc2-syzkaller-00316-g0457e5153e0e #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS\nGoogle 01/01/2011\nRIP: 0010:__dma_map_sg_attrs+0x181/0x1f0 kernel/dma/mapping.c:188\nCode: 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 71 4c 8b 3d c0\n83 b5 0d e9 db fe ff ff e8 b6 0f 13 00 0f 0b e8 af 0f 13 00 <0f> 0b 45\n 31 e4 e9 54 ff ff ff e8 a0 0f 13 00 49 8d 7f 50 48 b8 00\nRSP: 0018:ffffc90002a07d68 EFLAGS: 00010293\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\nRDX: ffff88807e25e2c0 RSI: ffffffff81649e91 RDI: ffff88801b848408\nRBP: ffff88801b848000 R08: 0000000000000002 R09: ffff88801d86c74f\nR10: ffffffff81649d72 R11: 0000000000000001 R12: 0000000000000002\nR13: ffff88801d86c680 R14: 0000000000000001 R15: 0000000000000000\nFS: 0000555556e30300(0000) GS:ffff8880b9d00000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200000cc CR3: 000000001d74a000 CR4: 00000000003506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \n dma_map_sgtable+0x70/0xf0 kernel/dma/mapping.c:264\n get_sg_table.isra.0+0xe0/0x160 drivers/dma-buf/udmabuf.c:72\n begin_cpu_udmabuf+0x130/0x1d0 drivers/dma-buf/udmabuf.c:126\n dma_buf_begin_cpu_access+0xfd/0x1d0 drivers/dma-buf/dma-buf.c:1164\n dma_buf_ioctl+0x259/0x2b0 drivers/dma-buf/dma-buf.c:363\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:874 [inline]\n __se_sys_ioctl fs/ioctl.c:860 [inline]\n __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7f62fcf530f9\nCode: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89\nf7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01\nf0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffe3edab9b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\nRAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f62fcf530f9\nRDX: 0000000020000200 RSI: 0000000040086200 RDI: 0000000000000006\nRBP: 00007f62fcf170e0 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007f62fcf17170\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\n \n\nv2: Dont't forget to deregister if DMA mask setup fails.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "284562e1f34874e267d4f499362c3816f8f6bc3f", "status": "affected", "versionType": "git", "lessThan": "872875c9ecf8fa2e1d82bb2f2f1963f571aa8959" }, { "version": "284562e1f34874e267d4f499362c3816f8f6bc3f", "status": "affected", "versionType": "git", "lessThan": "e658538c610c6047b3c9f552e73801894d9284b1" }, { "version": "284562e1f34874e267d4f499362c3816f8f6bc3f", "status": "affected", "versionType": "git", "lessThan": "f2f6ea1a8da1317430a84701fc0170449ee88315" }, { "version": "284562e1f34874e267d4f499362c3816f8f6bc3f", "status": "affected", "versionType": "git", "lessThan": "9e9fa6a9198b767b00f48160800128e83a038f9f" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.6", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.6" }, { "version": "5.10.141", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.65", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.19.7", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.19.*" }, { "version": "6.0", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }