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CVE-2024-26894— ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

AI Predicted 3.7 Difficulty: Theoretical EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 3d339dcbb56d8d70c1b959aff87d74adc3a84eea< d351bcadab6caa6d8ce7159ff4b77e2da35c09fa affected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea< ea96bf3f80625cddba1391a87613356b1b45716d affected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea< c2a30c81bf3cb9033fa9f5305baf7c377075e2e5 affected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea< 1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2 affected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea< fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8 affected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea< 3d48e5be107429ff5d824e7f2a00d1b610d36fbc affected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea< 8d14a4d0afb49a5b8535d414c782bb334860e73e affected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea< cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9 affected
… +12 more rows
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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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 3d339dcbb56d8d70c1b959aff87d74adc3a84eea ~ d351bcadab6caa6d8ce7159ff4b77e2da35c09fa -
Linux Linux 3.7 -

II. Public POCs for CVE-2024-26894

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III. Intelligence Information for CVE-2024-26894

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Mailing List Discussions for CVE-2024-26894 (2)

Other References for CVE-2024-26894 (8)

Same Patch Batch · Linux · 2024-04-17 · 100 CVEs total

CVE-2024-26877 9.8 CRITICAL crypto: xilinx - call finalize with bh disabled
CVE-2024-26853 9.8 CRITICAL igc: avoid returning frame twice in XDP_REDIRECT
CVE-2024-26828 9.4 CRITICAL cifs: fix underflow in parse_server_interfaces()
CVE-2024-26856 8.8 HIGH net: sparx5: Fix use after free inside sparx5_del_mact_entry
CVE-2024-26822 8.7 HIGH smb: client: set correct id, uid and cruid for multiuser automounts
CVE-2024-26830 8.4 HIGH i40e: Do not allow untrusted VF to remove administratively set MAC
CVE-2024-26914 7.8 HIGH drm/amd/display: fix incorrect mpc_combine array size
CVE-2024-26898 7.8 HIGH aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
CVE-2024-26852 7.8 HIGH net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
CVE-2024-26895 7.8 HIGH wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces
CVE-2024-26890 7.8 HIGH Bluetooth: btrtl: fix out of bounds memory access
CVE-2024-26864 7.8 HIGH tcp: Fix refcnt handling in __inet_hash_connect().
CVE-2024-26865 7.8 HIGH rds: tcp: Fix use-after-free of net in reqsk_timer_handler().
CVE-2024-26869 7.8 HIGH f2fs: fix to truncate meta inode pages forcely
CVE-2024-26870 7.8 HIGH NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102
CVE-2024-26885 7.8 HIGH bpf: Fix DEVMAP_HASH overflow check on 32-bit arches
CVE-2024-26872 7.8 HIGH RDMA/srpt: Do not register event handler until srpt device is fully setup
CVE-2024-26884 7.8 HIGH bpf: Fix hashtab overflow check on 32-bit arches
CVE-2024-26883 7.8 HIGH bpf: Fix stackmap overflow check on 32-bit arches
CVE-2024-26880 7.8 HIGH dm: call the resume method on internal suspend

Showing top 20 of 100 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26894

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