| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "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": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/x86/include/asm/nospec-branch.h" |
| ], |
| "versions": [ |
| { |
| "version": "50f021f0b985629accf10481a6e89af8b9700583", |
| "lessThan": "bfd1d223d80cb29a210caa1bd5e21f0816d58f02", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d54de9f2a127090f2017184e8257795b487d5312", |
| "lessThan": "ada431c6c31a2c8c37991c46089af5caa23a9c6e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "2e3087505ddb8ba2d3d4c81306cca11e868fcdb9", |
| "lessThan": "38c5fe74f3bef98f75d16effa49836d50c9b6097", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "ca13d8cd8dac25558da4ee8df4dc70e8e7f9d762", |
| "lessThan": "481b477ab63c7245715a3e57ba79eb87c2dc0d02", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a0e2dab44d22b913b4c228c8b52b2a104434b0b3", |
| "lessThan": "bc576fbaf82deded606e69a00efe9752136bf91d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "a0e2dab44d22b913b4c228c8b52b2a104434b0b3", |
| "lessThan": "e4d2102018542e3ae5e297bc6e229303abff8a0f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "51eca9f1fd047b500137d021f882d93f03280118", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/x86/include/asm/nospec-branch.h" |
| ], |
| "versions": [ |
| { |
| "version": "6.8", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.8", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.229", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.171", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.116", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.58", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.5", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12", |
| "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": "5.10.215", |
| "versionEndExcluding": "5.10.229" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.15.154", |
| "versionEndExcluding": "5.15.171" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.1.81", |
| "versionEndExcluding": "6.1.116" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.6.21", |
| "versionEndExcluding": "6.6.58" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.8", |
| "versionEndExcluding": "6.11.5" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.8", |
| "versionEndExcluding": "6.12" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.7.9" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/bfd1d223d80cb29a210caa1bd5e21f0816d58f02" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ada431c6c31a2c8c37991c46089af5caa23a9c6e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/38c5fe74f3bef98f75d16effa49836d50c9b6097" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/481b477ab63c7245715a3e57ba79eb87c2dc0d02" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/bc576fbaf82deded606e69a00efe9752136bf91d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e4d2102018542e3ae5e297bc6e229303abff8a0f" |
| } |
| ], |
| "title": "x86/bugs: Use code segment selector for VERW operand", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-50072", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
