Description
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
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
0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to < 0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2affected0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to < 4f9c0a7c272626cb6716ffc7800e8c73260cdce6affected0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to < ff466f77d0a56719979c4234abd412abd98eae8faffected0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to < fc0e18f95c88435bd8a1ceb540243cd7fbcd9781affected0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to < 08bd1be1c716fd50a7df48f82dcbc59a103082b5affected0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to < 54ee23e4ab263a495ace1eed43d3883212ece17faffected0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 to < d8f28269dd4bf9b55c3fb376ae31512730a96fceaffected
Linux Linux
Default version status: affected
4.19affected0 to < 4.19unaffected4.19.284 to ≤ 4.19.*unaffected5.4.244 to ≤ 5.4.*unaffected5.10.181 to ≤ 5.10.*unaffected5.15.113 to ≤ 5.15.*unaffected6.1.30 to ≤ 6.1.*unaffected6.3.4 to ≤ 6.3.*unaffected6.4 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2 ↗
- https://git.kernel.org/stable/c/4f9c0a7c272626cb6716ffc7800e8c73260cdce6 ↗
- https://git.kernel.org/stable/c/ff466f77d0a56719979c4234abd412abd98eae8f ↗
- https://git.kernel.org/stable/c/fc0e18f95c88435bd8a1ceb540243cd7fbcd9781 ↗
- https://git.kernel.org/stable/c/08bd1be1c716fd50a7df48f82dcbc59a103082b5 ↗
- https://git.kernel.org/stable/c/54ee23e4ab263a495ace1eed43d3883212ece17f ↗
- https://git.kernel.org/stable/c/d8f28269dd4bf9b55c3fb376ae31512730a96fce ↗