{ "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-2024-50072", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-50072", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-10-29T00:50:14.170Z", "updatedAt": "2026-05-23T15:54:21.843Z", "importedAt": "2026-10-24T01:57:20.494Z", "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": "x86/bugs: Use code segment selector for VERW operand", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/bugs: Use code segment selector for VERW operand\n\nRobert Gill reported below #GP in 32-bit mode when dosemu software was\nexecuting vm86() system call:\n\n general protection fault: 0000 [#1] PREEMPT SMP\n CPU: 4 PID: 4610 Comm: dosemu.bin Not tainted 6.6.21-gentoo-x86 #1\n Hardware name: Dell Inc. PowerEdge 1950/0H723K, BIOS 2.7.0 10/30/2010\n EIP: restore_all_switch_stack+0xbe/0xcf\n EAX: 00000000 EBX: 00000000 ECX: 00000000 EDX: 00000000\n ESI: 00000000 EDI: 00000000 EBP: 00000000 ESP: ff8affdc\n DS: 0000 ES: 0000 FS: 0000 GS: 0033 SS: 0068 EFLAGS: 00010046\n CR0: 80050033 CR2: 00c2101c CR3: 04b6d000 CR4: 000406d0\n Call Trace:\n show_regs+0x70/0x78\n die_addr+0x29/0x70\n exc_general_protection+0x13c/0x348\n exc_bounds+0x98/0x98\n handle_exception+0x14d/0x14d\n exc_bounds+0x98/0x98\n restore_all_switch_stack+0xbe/0xcf\n exc_bounds+0x98/0x98\n restore_all_switch_stack+0xbe/0xcf\n\nThis only happens in 32-bit mode when VERW based mitigations like MDS/RFDS\nare enabled. This is because segment registers with an arbitrary user value\ncan result in #GP when executing VERW. Intel SDM vol. 2C documents the\nfollowing behavior for VERW instruction:\n\n #GP(0) - If a memory operand effective address is outside the CS, DS, ES,\n\t FS, or GS segment limit.\n\nCLEAR_CPU_BUFFERS macro executes VERW instruction before returning to user\nspace. Use %cs selector to reference VERW operand. This ensures VERW will\nnot #GP for an arbitrary user %ds.\n\n[ mingo: Fixed the SOB chain. ]", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "50f021f0b985629accf10481a6e89af8b9700583", "status": "affected", "versionType": "git", "lessThan": "bfd1d223d80cb29a210caa1bd5e21f0816d58f02" }, { "version": "d54de9f2a127090f2017184e8257795b487d5312", "status": "affected", "versionType": "git", "lessThan": "ada431c6c31a2c8c37991c46089af5caa23a9c6e" }, { "version": "2e3087505ddb8ba2d3d4c81306cca11e868fcdb9", "status": "affected", "versionType": "git", "lessThan": "38c5fe74f3bef98f75d16effa49836d50c9b6097" }, { "version": "ca13d8cd8dac25558da4ee8df4dc70e8e7f9d762", "status": "affected", "versionType": "git", "lessThan": "481b477ab63c7245715a3e57ba79eb87c2dc0d02" }, { "version": "a0e2dab44d22b913b4c228c8b52b2a104434b0b3", "status": "affected", "versionType": "git", "lessThan": "bc576fbaf82deded606e69a00efe9752136bf91d" }, { "version": "a0e2dab44d22b913b4c228c8b52b2a104434b0b3", "status": "affected", "versionType": "git", "lessThan": "e4d2102018542e3ae5e297bc6e229303abff8a0f" }, { "version": "51eca9f1fd047b500137d021f882d93f03280118", "status": "affected", "versionType": "git" }, { "version": "5.10.215", "status": "affected", "versionType": "semver", "lessThan": "5.10.229" }, { "version": "5.15.154", "status": "affected", "versionType": "semver", "lessThan": "5.15.171" }, { "version": "6.1.81", "status": "affected", "versionType": "semver", "lessThan": "6.1.116" }, { "version": "6.6.21", "status": "affected", "versionType": "semver", "lessThan": "6.6.58" }, { "version": "6.7.9", "status": "affected", "versionType": "semver", "lessThan": "6.8" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.8", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.8" }, { "version": "5.10.229", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.171", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.116", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.58", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.11.5", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.11.*" }, { "version": "6.12", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }