mirror of
https://github.com/CVEProject/cvelist.git
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158 lines
8.9 KiB
JSON
158 lines
8.9 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2024-40974",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries: Enforce hcall result buffer validity and size\n\nplpar_hcall(), plpar_hcall9(), and related functions expect callers to\nprovide valid result buffers of certain minimum size. Currently this\nis communicated only through comments in the code and the compiler has\nno idea.\n\nFor example, if I write a bug like this:\n\n long retbuf[PLPAR_HCALL_BUFSIZE]; // should be PLPAR_HCALL9_BUFSIZE\n plpar_hcall9(H_ALLOCATE_VAS_WINDOW, retbuf, ...);\n\nThis compiles with no diagnostics emitted, but likely results in stack\ncorruption at runtime when plpar_hcall9() stores results past the end\nof the array. (To be clear this is a contrived example and I have not\nfound a real instance yet.)\n\nTo make this class of error less likely, we can use explicitly-sized\narray parameters instead of pointers in the declarations for the hcall\nAPIs. When compiled with -Warray-bounds[1], the code above now\nprovokes a diagnostic like this:\n\nerror: array argument is too small;\nis of size 32, callee requires at least 72 [-Werror,-Warray-bounds]\n 60 | plpar_hcall9(H_ALLOCATE_VAS_WINDOW, retbuf,\n | ^ ~~~~~~\n\n[1] Enabled for LLVM builds but not GCC for now. See commit\n 0da6e5fd6c37 (\"gcc: disable '-Warray-bounds' for gcc-13 too\") and\n related changes."
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "1da177e4c3f4",
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"version_value": "acf2b80c31c3"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "4.19.317",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.279",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.221",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.162",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.96",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.36",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.9.7",
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"lessThanOrEqual": "6.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.10",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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],
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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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}
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}
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]
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}
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},
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"references": {
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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/acf2b80c31c37acab040baa3cf5f19fbd5140b18",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/acf2b80c31c37acab040baa3cf5f19fbd5140b18"
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},
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{
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"url": "https://git.kernel.org/stable/c/19c166ee42cf16d8b156a6cb4544122d9a65d3ca",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/19c166ee42cf16d8b156a6cb4544122d9a65d3ca"
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},
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{
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"url": "https://git.kernel.org/stable/c/a8c988d752b3d98d5cc1e3929c519a55ef55426c",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/a8c988d752b3d98d5cc1e3929c519a55ef55426c"
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},
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{
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"url": "https://git.kernel.org/stable/c/262e942ff5a839b9e4f3302a8987928b0c8b8a2d",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/262e942ff5a839b9e4f3302a8987928b0c8b8a2d"
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},
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{
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"url": "https://git.kernel.org/stable/c/8aa11aa001576bf3b00dcb8559564ad7a3113588",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/8aa11aa001576bf3b00dcb8559564ad7a3113588"
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},
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{
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"url": "https://git.kernel.org/stable/c/3ad0034910a57aa88ed9976b1431b7b8c84e0048",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/3ad0034910a57aa88ed9976b1431b7b8c84e0048"
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},
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{
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"url": "https://git.kernel.org/stable/c/aa6107dcc4ce9a3451f2d729204713783b657257",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/aa6107dcc4ce9a3451f2d729204713783b657257"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff2e185cf73df480ec69675936c4ee75a445c3e4",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/ff2e185cf73df480ec69675936c4ee75a445c3e4"
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}
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]
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},
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"generator": {
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"engine": "bippy-9e1c9544281a"
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}
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} |