| Changed | Description | In the Linux kernel, the following vulnerability has been resolved:
usb: dwc2: gadget: don't reset gadget's driver->bus
UDC driver should not touch gadget's driver internals, especially it
should not reset driver->bus. This wasn't harmful so far, but since
commit fc274c1e9973 ("USB: gadget: Add a new bus for gadgets") gadget
subsystem got it's own bus and messing with ->bus triggers the
following NULL pointer dereference:
dwc2 12480000.hsotg: bound driver g_ether
8<--- cut here ---
Unable to handle kernel NULL pointer dereference at virtual address 00000000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in: ...
CPU: 0 PID: 620 Comm: modprobe Not tainted 5.18.0-rc5-next-20220504 #11862
Hardware name: Samsung Exynos (Flattened Device Tree)
PC is at module_add_driver+0x44/0xe8
LR is at sysfs_do_create_link_sd+0x84/0xe0
...
Process modprobe (pid: 620, stack limit = 0x(ptrval))
...
 module_add_driver from bus_add_driver+0xf4/0x1e4
 bus_add_driver from driver_register+0x78/0x10c
 driver_register from usb_gadget_register_driver_owner+0x40/0xb4
 usb_gadget_register_driver_owner from do_one_initcall+0x44/0x1e0
 do_one_initcall from do_init_module+0x44/0x1c8
 do_init_module from load_module+0x19b8/0x1b9c
 load_module from sys_finit_module+0xdc/0xfc
 sys_finit_module from ret_fast_syscall+0x0/0x54
Exception stack(0xf1771fa8 to 0xf1771ff0)
...
dwc2 12480000.hsotg: new device is high-speed
---[ end trace 0000000000000000 ]---
Fix this by removing driver->bus entry reset.
 
 | Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. 
 
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						| Removed | CVSS V3.1 | NIST: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 
 
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						| Removed | CWE | NIST: CWE-476 
 
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						| Removed | CPE Configuration | OR
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.198
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.283
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.247
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 up to (excluding) 5.18.4
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.17.15
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.47
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.122
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.318
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/172cfc167c8ee6238f24f9c16efd598602af643c 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/3120aac6d0ecd9accf56894aeac0e265f74d3d5a 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/5127c0f365265bb69cd776ad6e4b872c309f3fa8 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/547ebdc200b862dff761ff4890f66d8217c33316 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/5b0c0298f7c3b57417f1729ec4071f76864b72dd 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/bee8f9808a7e82addfc73a0973b16a8bb684205b 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/d2159feb9d28ce496d77df98313ab454646372ac 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/d232ca0bbc7d03144bad0ffd1792c3352bfd03fa 
 
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						| Removed | Reference | kernel.org: https://git.kernel.org/stable/c/efb15ff4a77fe053c941281775fefa91c87770e0 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/172cfc167c8ee6238f24f9c16efd598602af643c Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/3120aac6d0ecd9accf56894aeac0e265f74d3d5a Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/5127c0f365265bb69cd776ad6e4b872c309f3fa8 Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/547ebdc200b862dff761ff4890f66d8217c33316 Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/5b0c0298f7c3b57417f1729ec4071f76864b72dd Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/bee8f9808a7e82addfc73a0973b16a8bb684205b Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/d2159feb9d28ce496d77df98313ab454646372ac Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/d232ca0bbc7d03144bad0ffd1792c3352bfd03fa Types: Patch 
 
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						| Removed | Reference Type | kernel.org: https://git.kernel.org/stable/c/efb15ff4a77fe053c941281775fefa91c87770e0 Types: Patch 
 
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