linux-stable/drivers/staging
Laura Abbott f1769a9ba4 staging: android: ion: Switch to pr_warn_once in ion_buffer_destroy
commit 45ad559a29 upstream.

Syzbot reported yet another warning with Ion:

WARNING: CPU: 0 PID: 1467 at drivers/staging/android/ion/ion.c:122
ion_buffer_destroy+0xd4/0x190 drivers/staging/android/ion/ion.c:122
Kernel panic - not syncing: panic_on_warn set ...

This is catching that a buffer was freed with an existing kernel mapping
still present. This can be easily be triggered from userspace by calling
DMA_BUF_SYNC_START without calling DMA_BUF_SYNC_END. Switch to a single
pr_warn_once to indicate the error without being disruptive.

Reported-by: syzbot+cd8bcd40cb049efa2770@syzkaller.appspotmail.com
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-06-16 09:45:15 +02:00
..
android staging: android: ion: Switch to pr_warn_once in ion_buffer_destroy 2018-06-16 09:45:15 +02:00
board License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ccree staging: ccree: Uninitialized return in ssi_ahash_import() 2018-02-25 11:08:02 +01:00
clocking-wizard
comedi staging: comedi: ni_mio_common: ack ai fifo error interrupts. 2018-04-08 14:26:32 +02:00
dgnc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
emxx_udc
fbtft License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fsl-dpaa2 staging: fsl-dpaa2/eth: Fix incorrect casts 2018-05-25 16:17:43 +02:00
fsl-mc irqchip/gic-v3: Ignore disabled ITS nodes 2018-04-26 11:02:20 +02:00
fwserial License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gdm724x License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
goldfish staging: goldfish: (Coding Style) Fixed parenthesis alignment. 2017-08-31 18:21:37 +02:00
greybus staging: greybus: light: Release memory obtained by kasprintf 2017-12-25 14:26:30 +01:00
gs_fpgaboot staging: gs_fpgaboot: return valid error codes 2017-07-28 17:07:37 -07:00
iio staging: iio: ad5933: switch buffer mode to software 2018-02-25 11:07:53 +01:00
irda staging: irda: fix init level for irda core 2017-08-30 10:15:12 -07:00
ks7010 staging: ks7010: Use constants from ieee80211_eid instead of literal ints. 2018-05-25 16:17:43 +02:00
lustre staging: lustre: lmv: correctly iput lmo_root 2018-05-25 16:17:44 +02:00
media media: staging: lirc_zilog: incorrect reference counting 2018-04-24 09:36:39 +02:00
most License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mt29f_spinand staging: mt29f_spinand: Enable the read ECC before program the page 2017-09-18 12:25:31 +02:00
netlogic
nvec License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
octeon staging: octeon: fix line over 80 characters 2017-08-18 15:57:17 -07:00
octeon-usb
olpc_dcon License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pi433 staging: pi433: Move limit check to switch default to kill warning 2017-09-18 12:25:31 +02:00
rtl8188eu staging: rtl8188eu: Fix incorrect response to SIOCGIWESSID 2018-02-03 17:39:17 +01:00
rtl8192e License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rtl8192u staging: rtl8192u: return -ENOMEM on failed allocation of priv->oldaddr 2018-05-25 16:17:43 +02:00
rtl8712 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rtl8723bs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rtlwifi staging: rtl8822be: fix missing null check on dev_alloc_skb return 2018-03-19 08:42:48 +01:00
rts5208 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
skein License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sm750fb staging: sm750fb: Fix parameter mistake in poke32 2017-11-21 09:49:24 +01:00
speakup License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
typec typec: tcpm: fusb302: Resolve out of order messaging events 2018-03-19 08:42:48 +01:00
unisys License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vboxvideo staging: vboxvideo: Fix reporting invalid suggested-offset-properties 2017-11-21 09:49:24 +01:00
vc04_services staging: bcm2835-audio: Release resources on module_exit() 2018-05-25 16:17:43 +02:00
vme License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vt6655 vt6655: Fix a possible sleep-in-atomic bug in vt6655_suspend 2017-12-20 10:10:35 +01:00
vt6656 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wilc1000 staging: wilc1000: Fix bssid buffer offset in Txq 2017-11-21 09:49:23 +01:00
wlan-ng License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xgifb License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-09-06 14:45:08 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00