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CVE-2023-54186

usb: typec: altmodes/displayport: fix pin_assignment_show

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

usb: typec: altmodes/displayport: fix pin_assignment_show

This patch fixes negative indexing of buf array in pin_assignment_show
when get_current_pin_assignments returns 0 i.e. no compatible pin
assignments are found.

BUG: KASAN: use-after-free in pin_assignment_show+0x26c/0x33c
...
Call trace:
dump_backtrace+0x110/0x204
dump_stack_lvl+0x84/0xbc
print_report+0x358/0x974
kasan_report+0x9c/0xfc
__do_kernel_fault+0xd4/0x2d4
do_bad_area+0x48/0x168
do_tag_check_fault+0x24/0x38
do_mem_abort+0x6c/0x14c
el1_abort+0x44/0x68
el1h_64_sync_handler+0x64/0xa4
el1h_64_sync+0x78/0x7c
pin_assignment_show+0x26c/0x33c
dev_attr_show+0x50/0xc0
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Version < 0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2
Status affected
Version 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Version < 4f9c0a7c272626cb6716ffc7800e8c73260cdce6
Status affected
Version 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Version < ff466f77d0a56719979c4234abd412abd98eae8f
Status affected
Version 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Version < fc0e18f95c88435bd8a1ceb540243cd7fbcd9781
Status affected
Version 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Version < 08bd1be1c716fd50a7df48f82dcbc59a103082b5
Status affected
Version 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Version < 54ee23e4ab263a495ace1eed43d3883212ece17f
Status affected
Version 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588
Version < d8f28269dd4bf9b55c3fb376ae31512730a96fce
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.19
Status affected
Version 0
Version < 4.19
Status unaffected
Version <= 4.19.*
Version 4.19.284
Status unaffected
Version <= 5.4.*
Version 5.4.244
Status unaffected
Version <= 5.10.*
Version 5.10.181
Status unaffected
Version <= 5.15.*
Version 5.15.113
Status unaffected
Version <= 6.1.*
Version 6.1.30
Status unaffected
Version <= 6.3.*
Version 6.3.4
Status unaffected
Version <= *
Version 6.4
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.05% 0.144
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
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