CVE-2024-26894

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.

Reserved 2024-02-19 | Published 2024-04-17 | Updated 2024-12-19 | Assigner Linux

Product status

Default status
unaffected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before d351bcadab6caa6d8ce7159ff4b77e2da35c09fa
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before ea96bf3f80625cddba1391a87613356b1b45716d
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before c2a30c81bf3cb9033fa9f5305baf7c377075e2e5
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before 1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before 3d48e5be107429ff5d824e7f2a00d1b610d36fbc
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before 8d14a4d0afb49a5b8535d414c782bb334860e73e
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9
affected

3d339dcbb56d8d70c1b959aff87d74adc3a84eea before e18afcb7b2a12b635ac10081f943fcf84ddacc51
affected

Default status
affected

3.7
affected

Any version before 3.7
unaffected

4.19.311
unaffected

5.4.273
unaffected

5.10.214
unaffected

5.15.153
unaffected

6.1.83
unaffected

6.6.23
unaffected

6.7.11
unaffected

6.8.2
unaffected

6.9
unaffected

References

git.kernel.org/...c/d351bcadab6caa6d8ce7159ff4b77e2da35c09fa

git.kernel.org/...c/ea96bf3f80625cddba1391a87613356b1b45716d

git.kernel.org/...c/c2a30c81bf3cb9033fa9f5305baf7c377075e2e5

git.kernel.org/...c/1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2

git.kernel.org/...c/fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8

git.kernel.org/...c/3d48e5be107429ff5d824e7f2a00d1b610d36fbc

git.kernel.org/...c/8d14a4d0afb49a5b8535d414c782bb334860e73e

git.kernel.org/...c/cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9

git.kernel.org/...c/e18afcb7b2a12b635ac10081f943fcf84ddacc51

cve.org (CVE-2024-26894)

nvd.nist.gov (CVE-2024-26894)

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