Title: kernel de Linux
Description: En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvdimm: Se corrigen las fugas de memoria de los desarrolladores en scan_labels() scan_labels() pierde memoria cuando falla el escaneo de etiquetas y vuelve a crear un espacio de nombres "seed" predeterminado para que el espacio de usuario lo configure. El usuario root puede obligar al kernel a perder memoria. Asigne los recursos mínimos incondicionalmente y libérelos cuando no sean necesarios para evitar la fuga de memoria. Un kmemleak informa: objeto no referenciado 0xffff88800dda1980 (tamaño 16): comm "kworker/u10:5", pid 69, jiffies 4294671781 volcado hexadecimal (primeros 16 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): [<00000000c5dea560>] __kmalloc+0x32c/0x470 [<000000009ed43c83>] nd_region_register_namespaces+0x6fb/0x1120 [libnvdimm] [<000000000e07a65c>] nd_region_probe+0xfe/0x210 [libnvdimm] [<000000007b79ce5f>] nvdimm_bus_probe+0x7a/0x1e0 [libnvdimm] [<00000000a5f3da2e>] really_probe+0xc6/0x390 [<00000000129e2a69>] __driver_probe_device+0x78/0x150 [<000000002dfed28b>] driver_probe_device+0x1e/0x90 [<00000000e7048de2>] __device_attach_driver+0x85/0x110 [<0000000032dca295>] bus_for_each_drv+0x85/0xe0 [<00000000391c5a7d>] __device_attach+0xbe/0x1e0 [<0000000026dabec0>] bus_probe_device+0x94/0xb0 [<00000000c590d936>] device_add+0x656/0x870 [<000000003d69bfaa>] nd_async_device_register+0xe/0x50 [libnvdimm] [<000000003f4c52a4>] async_run_entry_fn+0x2e/0x110 [<00000000e201f4b0>] process_one_work+0x1ee/0x600 [<000000006d90d5a9>] worker_thread+0x183/0x350

In the Linux kernel, the following vulnerability has been resolved:

nvdimm: Fix devs leaks in scan_labels()

scan_labels() leaks memory when label scanning fails and it falls back
to just creating a default "seed" namespace for userspace to configure.
Root can force the kernel to leak memory.

Allocate the minimum resources unconditionally and release them when
unneeded to avoid the memory leak.

A kmemleak reports:
unreferenced object 0xffff88800dda1980 (size 16):
  comm "kworker/u10:5", pid 69, jiffies 4294671781
  hex dump (first 16 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 0):
    [<00000000c5dea560>] __kmalloc+0x32c/0x470
    [<000000009ed43c83>] nd_region_register_namespaces+0x6fb/0x1120 [libnvdimm]
    [<000000000e07a65c>] nd_region_probe+0xfe/0x210 [libnvdimm]
    [<000000007b79ce5f>] nvdimm_bus_probe+0x7a/0x1e0 [libnvdimm]
    [<00000000a5f3da2e>] really_probe+0xc6/0x390
    [<00000000129e2a69>] __driver_probe_device+0x78/0x150
    [<000000002dfed28b>] driver_probe_device+0x1e/0x90
    [<00000000e7048de2>] __device_attach_driver+0x85/0x110
    [<0000000032dca295>] bus_for_each_drv+0x85/0xe0
    [<00000000391c5a7d>] __device_attach+0xbe/0x1e0
    [<0000000026dabec0>] bus_probe_device+0x94/0xb0
    [<00000000c590d936>] device_add+0x656/0x870
    [<000000003d69bfaa>] nd_async_device_register+0xe/0x50 [libnvdimm]
    [<000000003f4c52a4>] async_run_entry_fn+0x2e/0x110
    [<00000000e201f4b0>] process_one_work+0x1ee/0x600
    [<000000006d90d5a9>] worker_thread+0x183/0x350

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NIST CWE-401

OR
     
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.11 from (excluding) 6.11.2
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.10.13
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.54
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.2 from (excluding) 6.1.113

kernel.org https://git.kernel.org/stable/c/18a672c62d735744c6340eb3f5e58934a5d34cf2

kernel.org https://git.kernel.org/stable/c/45db20bdb5695d06478d35e05fb2550441bed890

kernel.org https://git.kernel.org/stable/c/62c2aa6b1f565d2fc1ec11a6e9e8336ce37a6426

kernel.org https://git.kernel.org/stable/c/939053737edb49ba5bdc5846acb45f11d15b7ab4

kernel.org https://git.kernel.org/stable/c/cdf0dfb3d183bbe0d0b6a6622c53d105074ad384