Diffusion FreeBSD src repository c61fae1475f1

pgcache read: protect against reads past end of the vm object size
c61fae1475f1
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Description

pgcache read: protect against reads past end of the vm object size

If uio_offset is past end of the object size, calculated resid is negative.
Delegate handling this case to the locked read, as any other non-trivial
situation.

PR: 253158
Reported by: Harald Schmalzbauer <bugzilla.freebsd@omnilan.de>
Tested by: cy
Sponsored by: The FreeBSD Foundation
MFC after: 1 week

Details

Provenance

kib	Authored on Feb 15 2021, 3:34 AM

Parents

rG184c1b943937: zfs: merge OpenZFS master-436ab35a5

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Event Timeline

kib committed rGc61fae1475f1: pgcache read: protect against reads past end of the vm object size (authored by kib).Feb 16 2021, 5:09 AM

kib mentioned this in rG1c23f70aeb29: pgcache read: protect against reads past end of the vm object size.Feb 23 2021, 9:10 AM

kib mentioned this in rG4b737a9c58ca: pgcache read: protect against reads past end of the vm object size.Feb 23 2021, 11:26 AM

Changes (1)

Path

Size

sys/

kern/

vfs_vnops.c

rGc61fae1475f1

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