CVE-2024-26894— ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()
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I. Basic Information for CVE-2024-26894
Vulnerability Information
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Vulnerability Title
ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit() After unregistering the CPU idle device, the memory associated with it is not freed, leading to a memory leak: unreferenced object 0xffff896282f6c000 (size 1024): comm "swapper/0", pid 1, jiffies 4294893170 hex dump (first 32 bytes): 00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 8836a742): [<ffffffff993495ed>] kmalloc_trace+0x29d/0x340 [<ffffffff9972f3b3>] acpi_processor_power_init+0xf3/0x1c0 [<ffffffff9972d263>] __acpi_processor_start+0xd3/0xf0 [<ffffffff9972d2bc>] acpi_processor_start+0x2c/0x50 [<ffffffff99805872>] really_probe+0xe2/0x480 [<ffffffff99805c98>] __driver_probe_device+0x78/0x160 [<ffffffff99805daf>] driver_probe_device+0x1f/0x90 [<ffffffff9980601e>] __driver_attach+0xce/0x1c0 [<ffffffff99803170>] bus_for_each_dev+0x70/0xc0 [<ffffffff99804822>] bus_add_driver+0x112/0x210 [<ffffffff99807245>] driver_register+0x55/0x100 [<ffffffff9aee4acb>] acpi_processor_driver_init+0x3b/0xc0 [<ffffffff990012d1>] do_one_initcall+0x41/0x300 [<ffffffff9ae7c4b0>] kernel_init_freeable+0x320/0x470 [<ffffffff99b231f6>] kernel_init+0x16/0x1b0 [<ffffffff99042e6d>] ret_from_fork+0x2d/0x50 Fix this by freeing the CPU idle device after unregistering it.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-26894
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Same Patch Batch · Linux · 2024-04-17 · 100 CVEs total
| CVE-2024-26883 | bpf: Fix stackmap overflow check on 32-bit arches | |
| CVE-2024-26877 | crypto: xilinx - call finalize with bh disabled | |
| CVE-2024-26873 | scsi: hisi_sas: Fix a deadlock issue related to automatic dump | |
| CVE-2024-26872 | RDMA/srpt: Do not register event handler until srpt device is fully setup | |
| CVE-2024-26871 | f2fs: fix NULL pointer dereference in f2fs_submit_page_write() | |
| CVE-2024-26870 | NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102 | |
| CVE-2024-26869 | f2fs: fix to truncate meta inode pages forcely | |
| CVE-2024-26874 | drm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip | |
| CVE-2024-26881 | net: hns3: fix kernel crash when 1588 is received on HIP08 devices | |
| CVE-2024-26882 | net: ip_tunnel: make sure to pull inner header in ip_tunnel_rcv() | |
| CVE-2024-26880 | dm: call the resume method on internal suspend | |
| CVE-2024-26884 | bpf: Fix hashtab overflow check on 32-bit arches | |
| CVE-2024-26885 | bpf: Fix DEVMAP_HASH overflow check on 32-bit arches | |
| CVE-2024-26886 | Bluetooth: af_bluetooth: Fix deadlock | |
| CVE-2024-26887 | Bluetooth: btusb: Fix memory leak | |
| CVE-2024-26888 | Bluetooth: msft: Fix memory leak | |
| CVE-2024-26889 | Bluetooth: hci_core: Fix possible buffer overflow | |
| CVE-2024-26890 | Bluetooth: btrtl: fix out of bounds memory access | |
| CVE-2024-26891 | iommu/vt-d: Don't issue ATS Invalidation request when device is disconnected | |
| CVE-2024-26892 | wifi: mt76: mt7921e: fix use-after-free in free_irq() |
Showing top 20 of 100 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
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