CVE-2023-54186 | THREATINT

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

PUBLISHED Reserved 2025-12-30 | Published 2025-12-30 | Updated 2025-12-30 | Assigner Linux

Product status

Default status

unaffected

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 (git) before 0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2

affected

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 (git) before 4f9c0a7c272626cb6716ffc7800e8c73260cdce6

affected

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 (git) before ff466f77d0a56719979c4234abd412abd98eae8f

affected

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 (git) before fc0e18f95c88435bd8a1ceb540243cd7fbcd9781

affected

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 (git) before 08bd1be1c716fd50a7df48f82dcbc59a103082b5

affected

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 (git) before 54ee23e4ab263a495ace1eed43d3883212ece17f

affected

0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 (git) before d8f28269dd4bf9b55c3fb376ae31512730a96fce

affected

Default status

affected

4.19

affected

Any version before 4.19

unaffected

4.19.284 (semver)

unaffected

5.4.244 (semver)

unaffected

5.10.181 (semver)

unaffected

5.15.113 (semver)

unaffected

6.1.30 (semver)

unaffected

6.3.4 (semver)

unaffected

6.4 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/0e61a7432fcd4bca06f05b7f1c7d7cb461880fe2

git.kernel.org/...c/4f9c0a7c272626cb6716ffc7800e8c73260cdce6

git.kernel.org/...c/ff466f77d0a56719979c4234abd412abd98eae8f

git.kernel.org/...c/fc0e18f95c88435bd8a1ceb540243cd7fbcd9781

git.kernel.org/...c/08bd1be1c716fd50a7df48f82dcbc59a103082b5

git.kernel.org/...c/54ee23e4ab263a495ace1eed43d3883212ece17f

git.kernel.org/...c/d8f28269dd4bf9b55c3fb376ae31512730a96fce

cve.org (CVE-2023-54186)

nvd.nist.gov (CVE-2023-54186)

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