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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < d351bcadab6caa6d8ce7159ff4b77e2da35c09faaffected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < ea96bf3f80625cddba1391a87613356b1b45716daffected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < c2a30c81bf3cb9033fa9f5305baf7c377075e2e5affected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < 1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2affected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8affected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < 3d48e5be107429ff5d824e7f2a00d1b610d36fbcaffected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < 8d14a4d0afb49a5b8535d414c782bb334860e73eaffected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9affected3d339dcbb56d8d70c1b959aff87d74adc3a84eea to < e18afcb7b2a12b635ac10081f943fcf84ddacc51affected
Linux Linux
Default version status: affected
3.7affected0 to < 3.7unaffected4.19.311 to ≤ 4.19.*unaffected5.4.273 to ≤ 5.4.*unaffected5.10.214 to ≤ 5.10.*unaffected5.15.153 to ≤ 5.15.*unaffected6.1.83 to ≤ 6.1.*unaffected6.6.23 to ≤ 6.6.*unaffected6.7.11 to ≤ 6.7.*unaffected6.8.2 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/d351bcadab6caa6d8ce7159ff4b77e2da35c09fa ↗
- https://git.kernel.org/stable/c/ea96bf3f80625cddba1391a87613356b1b45716d ↗
- https://git.kernel.org/stable/c/c2a30c81bf3cb9033fa9f5305baf7c377075e2e5 ↗
- https://git.kernel.org/stable/c/1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2 ↗
- https://git.kernel.org/stable/c/fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8 ↗
- https://git.kernel.org/stable/c/3d48e5be107429ff5d824e7f2a00d1b610d36fbc ↗
- https://git.kernel.org/stable/c/8d14a4d0afb49a5b8535d414c782bb334860e73e ↗
- https://git.kernel.org/stable/c/cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9 ↗
- https://git.kernel.org/stable/c/e18afcb7b2a12b635ac10081f943fcf84ddacc51 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗