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CVE-2022-50567

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

fs: jfs: fix shift-out-of-bounds in dbAllocAG

Syzbot found a crash : UBSAN: shift-out-of-bounds in dbAllocAG. The
underlying bug is the missing check of bmp->db_agl2size. The field can
be greater than 64 and trigger the shift-out-of-bounds.

Fix this bug by adding a check of bmp->db_agl2size in dbMount since this
field is used in many following functions. The upper bound for this
field is L2MAXL2SIZE - L2MAXAG, thanks for the help of Dave Kleikamp.
Note that, for maintenance, I reorganized error handling code of dbMount.
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Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version < d3b486946a4e62c7ef6023f7d9c1d049051384ba
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 3115313cf03113e87c87adee18ee49a20bbdb9ba
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < eea87acb6027be3dd4d3c57186bb22800d57fdda
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 359616ce587e524107730504891afa4b1a8be58c
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 3e997e4ce8ae7ab89d72334120f6aee49c5bbdbd
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 0536f76a2bca83d1a3740517ba22cc93a44b3099
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 2c575c8905f7a8b32d5611b91856b69bac2a5bf1
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 67973caae78e21ee46a7281aaa8ca364eb9c444f
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
Version < 898f706695682b9954f280d95e49fa86ffa55d08
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version <= 4.9.*
Version 4.9.337
Status unaffected
Version <= 4.14.*
Version 4.14.303
Status unaffected
Version <= 4.19.*
Version 4.19.270
Status unaffected
Version <= 5.4.*
Version 5.4.229
Status unaffected
Version <= 5.10.*
Version 5.10.163
Status unaffected
Version <= 5.15.*
Version 5.15.86
Status unaffected
Version <= 6.0.*
Version 6.0.16
Status unaffected
Version <= 6.1.*
Version 6.1.2
Status unaffected
Version <= *
Version 6.2
Status unaffected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-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