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veracodeVeracode Vulnerability DatabaseVERACODE:19165
HistoryMay 16, 2019 - 2:50 a.m.

Denial Of Service (DoS)

2019-05-1602:50:21
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
12

0.001 Low

EPSS

Percentile

28.1%

Linux kernel is vulnerable to denial of service (DoS) attacks. This is because the bio_map_user_iov() and bio_unmap_user() in ‘block/bio.c’ do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bio_add_pc_page merges them into one, but the page reference is never dropped, causing memory leak.

References