352 lines
16 KiB
JSON
352 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"cveMetadata": {
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"cveId": "CVE-2023-52609",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-03-06T09:52:12.088Z",
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"datePublished": "2024-03-18T10:07:45.486Z",
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"dateUpdated": "2026-05-11T19:30:17.511Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:30:17.511Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix race between mmput() and do_exit()\n\nTask A calls binder_update_page_range() to allocate and insert pages on\na remote address space from Task B. For this, Task A pins the remote mm\nvia mmget_not_zero() first. This can race with Task B do_exit() and the\nfinal mmput() refcount decrement will come from Task A.\n\n Task A | Task B\n ------------------+------------------\n mmget_not_zero() |\n | do_exit()\n | exit_mm()\n | mmput()\n mmput() |\n exit_mmap() |\n remove_vma() |\n fput() |\n\nIn this case, the work of ____fput() from Task B is queued up in Task A\nas TWA_RESUME. So in theory, Task A returns to userspace and the cleanup\nwork gets executed. However, Task A instead sleep, waiting for a reply\nfrom Task B that never comes (it's dead).\n\nThis means the binder_deferred_release() is blocked until an unrelated\nbinder event forces Task A to go back to userspace. All the associated\ndeath notifications will also be delayed until then.\n\nIn order to fix this use mmput_async() that will schedule the work in\nthe corresponding mm->async_put_work WQ instead of Task A."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/android/binder_alloc.c"
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],
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"versions": [
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{
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"version": "457b9a6f09f011ebcb9b52cc203a6331a6fc2de7",
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"lessThan": "95b1d336b0642198b56836b89908d07b9a0c9608",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "457b9a6f09f011ebcb9b52cc203a6331a6fc2de7",
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"lessThan": "252a2a5569eb9f8d16428872cc24dea1ac0bb097",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "457b9a6f09f011ebcb9b52cc203a6331a6fc2de7",
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"lessThan": "7e7a0d86542b0ea903006d3f42f33c4f7ead6918",
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"status": "affected",
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"lessThan": "98fee5bee97ad47b527a997d5786410430d1f0e9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "457b9a6f09f011ebcb9b52cc203a6331a6fc2de7",
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"lessThan": "6696f76c32ff67fec26823fc2df46498e70d9bf3",
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"status": "affected",
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},
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"version": "457b9a6f09f011ebcb9b52cc203a6331a6fc2de7",
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"status": "affected",
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{
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"version": "457b9a6f09f011ebcb9b52cc203a6331a6fc2de7",
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"lessThan": "77d210e8db4d61d43b2d16df66b1ec46fad2ee01",
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"status": "affected",
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},
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{
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"version": "457b9a6f09f011ebcb9b52cc203a6331a6fc2de7",
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"lessThan": "9a9ab0d963621d9d12199df9817e66982582d5a5",
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"status": "affected",
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/android/binder_alloc.c"
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],
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"versions": [
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{
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"version": "2.6.29",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.29",
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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": "4.19.306",
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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": "5.4.268",
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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": "5.10.209",
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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": "5.15.148",
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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": "6.1.75",
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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": "6.6.14",
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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": "6.7.2",
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"lessThanOrEqual": "6.7.*",
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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": "6.8",
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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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}
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],
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"cpeApplicability": [
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"versionStartIncluding": "2.6.29",
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}
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],
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"title": "binder: fix race between mmput() and do_exit()",
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"metrics": [
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"content": {
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"options": [
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"Technical Impact": "partial"
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"version": "2.0.3",
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"timestamp": "2024-03-18T14:26:58.041951Z"
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