{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-53327", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-16T16:08:59.564Z", "datePublished": "2025-09-16T16:12:03.417Z", "dateUpdated": "2025-09-16T16:12:03.417Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-16T16:12:03.417Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd/selftest: Catch overflow of uptr and length\n\nsyzkaller hits a WARN_ON when trying to have a uptr close to UINTPTR_MAX:\n\n WARNING: CPU: 1 PID: 393 at drivers/iommu/iommufd/selftest.c:403 iommufd_test+0xb19/0x16f0\n Modules linked in:\n CPU: 1 PID: 393 Comm: repro Not tainted 6.2.0-c9c3395d5e3d #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n RIP: 0010:iommufd_test+0xb19/0x16f0\n Code: 94 c4 31 ff 44 89 e6 e8 a5 54 17 ff 45 84 e4 0f 85 bb 0b 00 00 41 be fb ff ff ff e8 31 53 17 ff e9 a0 f7 ff ff e8 27 53 17 ff <0f> 0b 41 be 8\n RSP: 0018:ffffc90000eabdc0 EFLAGS: 00010246\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8214c487\n RDX: 0000000000000000 RSI: ffff88800f5c8000 RDI: 0000000000000002\n RBP: ffffc90000eabe48 R08: 0000000000000000 R09: 0000000000000001\n R10: 0000000000000001 R11: 0000000000000000 R12: 00000000cd2b0000\n R13: 00000000cd2af000 R14: 0000000000000000 R15: ffffc90000eabe68\n FS: 00007f94d76d5740(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000043 CR3: 0000000006880006 CR4: 0000000000770ee0\n PKRU: 55555554\n Call Trace:\n <TASK>\n ? write_comp_data+0x2f/0x90\n iommufd_fops_ioctl+0x1ef/0x310\n __x64_sys_ioctl+0x10e/0x160\n ? __pfx_iommufd_fops_ioctl+0x10/0x10\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nCheck that the user memory range doesn't overflow."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/iommufd/selftest.c"], "versions": [{"version": "f4b20bb34c83dceade5470288f48f94ce3598ada", "lessThan": "adac6508c235a092b91ed9c0110ecf140e9e9441", "status": "affected", "versionType": "git"}, {"version": "f4b20bb34c83dceade5470288f48f94ce3598ada", "lessThan": "3fb3505636d033bbf7a0851dac63d01732c51d62", "status": "affected", "versionType": "git"}, {"version": "f4b20bb34c83dceade5470288f48f94ce3598ada", "lessThan": "fd8c1a4aee973e87d890a5861e106625a33b2c4e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/iommufd/selftest.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.15", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3.2", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.2.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.3.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/adac6508c235a092b91ed9c0110ecf140e9e9441"}, {"url": "https://git.kernel.org/stable/c/3fb3505636d033bbf7a0851dac63d01732c51d62"}, {"url": "https://git.kernel.org/stable/c/fd8c1a4aee973e87d890a5861e106625a33b2c4e"}], "title": "iommufd/selftest: Catch overflow of uptr and length", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommufd/selftest: Catch overflow of uptr and length\n\nsyzkaller hits a WARN_ON when trying to have a uptr close to UINTPTR_MAX:\n\n WARNING: CPU: 1 PID: 393 at drivers/iommu/iommufd/selftest.c:403 iommufd_test+0xb19/0x16f0\n Modules linked in:\n CPU: 1 PID: 393 Comm: repro Not tainted 6.2.0-c9c3395d5e3d #1\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n RIP: 0010:iommufd_test+0xb19/0x16f0\n Code: 94 c4 31 ff 44 89 e6 e8 a5 54 17 ff 45 84 e4 0f 85 bb 0b 00 00 41 be fb ff ff ff e8 31 53 17 ff e9 a0 f7 ff ff e8 27 53 17 ff <0f> 0b 41 be 8\n RSP: 0018:ffffc90000eabdc0 EFLAGS: 00010246\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8214c487\n RDX: 0000000000000000 RSI: ffff88800f5c8000 RDI: 0000000000000002\n RBP: ffffc90000eabe48 R08: 0000000000000000 R09: 0000000000000001\n R10: 0000000000000001 R11: 0000000000000000 R12: 00000000cd2b0000\n R13: 00000000cd2af000 R14: 0000000000000000 R15: ffffc90000eabe68\n FS: 00007f94d76d5740(0000) GS:ffff88807dd00000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000020000043 CR3: 0000000006880006 CR4: 0000000000770ee0\n PKRU: 55555554\n Call Trace:\n <TASK>\n ? write_comp_data+0x2f/0x90\n iommufd_fops_ioctl+0x1ef/0x310\n __x64_sys_ioctl+0x10e/0x160\n ? __pfx_iommufd_fops_ioctl+0x10/0x10\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nCheck that the user memory range doesn't overflow."}], "id": "CVE-2023-53327", "lastModified": "2025-09-16T17:15:38.910", "metrics": {}, "published": "2025-09-16T17:15:38.910", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3fb3505636d033bbf7a0851dac63d01732c51d62"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/adac6508c235a092b91ed9c0110ecf140e9e9441"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd8c1a4aee973e87d890a5861e106625a33b2c4e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}