mirror of
https://github.com/CVEProject/cvelist.git
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102 lines
5.6 KiB
JSON
102 lines
5.6 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-2024-41023",
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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\nsched/deadline: Fix task_struct reference leak\n\nDuring the execution of the following stress test with linux-rt:\n\nstress-ng --cyclic 30 --timeout 30 --minimize --quiet\n\nkmemleak frequently reported a memory leak concerning the task_struct:\n\nunreferenced object 0xffff8881305b8000 (size 16136):\n comm \"stress-ng\", pid 614, jiffies 4294883961 (age 286.412s)\n object hex dump (first 32 bytes):\n 02 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 .@..............\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n debug hex dump (first 16 bytes):\n 53 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 S...............\n backtrace:\n [<00000000046b6790>] dup_task_struct+0x30/0x540\n [<00000000c5ca0f0b>] copy_process+0x3d9/0x50e0\n [<00000000ced59777>] kernel_clone+0xb0/0x770\n [<00000000a50befdc>] __do_sys_clone+0xb6/0xf0\n [<000000001dbf2008>] do_syscall_64+0x5d/0xf0\n [<00000000552900ff>] entry_SYSCALL_64_after_hwframe+0x6e/0x76\n\nThe issue occurs in start_dl_timer(), which increments the task_struct\nreference count and sets a timer. The timer callback, dl_task_timer,\nis supposed to decrement the reference count upon expiration. However,\nif enqueue_task_dl() is called before the timer expires and cancels it,\nthe reference count is not decremented, leading to the leak.\n\nThis patch fixes the reference leak by ensuring the task_struct\nreference count is properly decremented when the timer is canceled."
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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": "feff2e65efd8",
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"version_value": "7a54d31face6"
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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": "5.10",
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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": "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": "6.9.10",
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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/7a54d31face626f62de415ebe77b43f76c3ffaf4",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/7a54d31face626f62de415ebe77b43f76c3ffaf4"
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},
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{
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"url": "https://git.kernel.org/stable/c/b58652db66c910c2245f5bee7deca41c12d707b9",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/b58652db66c910c2245f5bee7deca41c12d707b9"
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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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} |