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linux/drivers/video/fbdev
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Phillip Potter 19ab233989 fbdev: zero-fill colormap in fbcmap.c 
Use kzalloc() rather than kmalloc() for the dynamically allocated parts
of the colormap in fb_alloc_cmap_gfp, to prevent a leak of random kernel
data to userspace under certain circumstances.

Fixes a KMSAN-found infoleak bug reported by syzbot at:
https://syzkaller.appspot.com/bug?id=741578659feabd108ad9e06696f0c1f2e69c4b6e

Reported-by: syzbot+47fa9c9c648b765305b9@syzkaller.appspotmail.com
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Link: https://lore.kernel.org/r/20210331220719.1499743-1-phil@philpotter.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2021-04-10 11:12:08 +02:00
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aty fbdev: atyfb: use LCD management functions for PPC_PMAC also 2021-03-11 11:11:32 +01:00
core fbdev: zero-fill colormap in fbcmap.c 2021-04-10 11:12:08 +02:00
geode video: fbdev: lxfb_ops: Fix fall-through warnings for Clang 2020-11-22 22:58:55 +01:00
i810
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intelfb
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kyro video: fbdev: kyro: remove set but not used 'ulCoreClock' 2020-09-08 13:33:31 +02:00
matrox matroxfb: avoid -Warray-bounds warning 2020-10-27 07:56:19 +01:00
mb862xx
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mmp video: fbdev: mmp: Fix kernel-doc warning for lcd_spi_write 2020-12-08 18:34:25 +01:00
nvidia video: fbdev: nvidia: Fix set but not used warnings 2020-11-30 20:21:54 +01:00
omap treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
omap2 - New Functionality 2021-02-22 09:27:18 -08:00
riva video: fbdev: riva: Fix kernel-doc and set but not used warnings 2020-11-30 20:04:36 +01:00
savage fbdev: savagefb: use generic power management 2020-09-08 13:33:15 +02:00
sis video: fbdev: sis: Drop useless call to SiS_GetResInfo() 2020-12-08 18:36:52 +01:00
vermilion
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via video: fbdev: via: Fix set but not used warning for mode_crt_table 2020-11-30 20:04:24 +01:00
68328fb.c
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Kconfig fbdev: aty: SPARC64 requires FB_ATY_CT 2020-11-27 16:14:02 +01:00
Makefile drm next for 5.10-rc1 2020-10-15 10:46:16 -07:00
acornfb.c video: fbdev: acornfb: remove free_unused_pages() 2021-02-24 13:38:31 -08:00
acornfb.h
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amba-clcd.c amba: Make the remove callback return void 2021-02-02 14:25:50 +01:00
amifb.c backlight/video: Use Platform getter/setter functions 2021-02-12 10:01:45 +00:00
arcfb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
arkfb.c fbdev: arkfb: use generic power management 2020-09-08 13:33:20 +02:00
asiliantfb.c
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atafb.c fbdev/atafb: Remove unused extern variables 2020-10-28 19:40:11 +01:00
atafb.h
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atafb_iplan2p2.c
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atafb_iplan2p4.c
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atafb_iplan2p8.c
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atafb_mfb.c
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atafb_utils.h
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atmel_lcdfb.c video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init() 2020-11-17 08:47:15 +01:00
au1100fb.c
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au1100fb.h
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au1200fb.c
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au1200fb.h
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broadsheetfb.c
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bt431.h
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bt455.h
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bw2.c video: fbdev: sparc drivers: fix kernel-doc warnings for blank_mode 2020-12-08 18:34:08 +01:00
c2p.h
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c2p_core.h
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c2p_iplan2.c
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c2p_planar.c
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carminefb.c
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carminefb.h
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carminefb_regs.h
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cg3.c video: fbdev: sparc drivers: fix kernel-doc warnings for blank_mode 2020-12-08 18:34:08 +01:00
cg6.c video: fbdev: sparc drivers: fix kernel-doc warnings for blank_mode 2020-12-08 18:34:08 +01:00
cg14.c
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chipsfb.c
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cirrusfb.c video: fbdev: cirrusfb: Fix kernel-doc and set but not used warnings 2020-12-05 21:16:02 +01:00
clps711x-fb.c
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cobalt_lcdfb.c
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controlfb.c video: fbdev: controlfb: Fix set but not used warnings 2020-12-08 18:36:36 +01:00
controlfb.h
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cyber2000fb.c fbdev: cyber2000fb: use generic power management 2020-09-08 13:33:16 +02:00
cyber2000fb.h
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da8xx-fb.c backlight/video: Use Platform getter/setter functions 2021-02-12 10:01:45 +00:00
dnfb.c
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edid.h
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efifb.c video: fbdev: efifb: Fix set but not used warning for screen_pitch 2020-12-08 18:36:03 +01:00
ep93xx-fb.c video: fbdev: Replace HTTP links with HTTPS ones 2020-07-20 11:47:29 +02:00
ffb.c video: fbdev: sparc drivers: fix kernel-doc warnings for blank_mode 2020-12-08 18:34:08 +01:00
fm2fb.c
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fsl-diu-fb.c video: fbdev: fsl-diu-fb: remove unneeded variable 'res' 2020-10-17 08:23:14 +02:00
g364fb.c
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gbefb.c video: fbdev: gbefb: Fix set but not used warning 2020-12-08 18:35:24 +01:00
goldfishfb.c video: fbdev: goldfishfb: Fix defined but not used warning 2020-12-08 18:34:50 +01:00
grvga.c video: fbdev: Replace HTTP links with HTTPS ones 2020-07-20 11:47:29 +02:00
gxt4500.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
hecubafb.c
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hgafb.c video: fbdev: hgafb: Fix kernel-doc warnings 2020-12-08 18:31:11 +01:00
hitfb.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
hpfb.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
hyperv_fb.c video: hyperv_fb: Fix a double free in hvfb_probe 2021-03-25 13:31:20 +00:00
i740_reg.h
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i740fb.c fbdev: i740fb: use generic power management 2020-09-08 13:33:17 +02:00
imsttfb.c
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imxfb.c backlight/video: Use Platform getter/setter functions 2021-02-12 10:01:45 +00:00
leo.c video: fbdev: sparc drivers: fix kernel-doc warnings for blank_mode 2020-12-08 18:34:08 +01:00
macfb.c video: fbdev: Replace HTTP links with HTTPS ones 2020-07-20 11:47:29 +02:00
macmodes.c
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macmodes.h
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maxinefb.c
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metronomefb.c video: fbdev: Replace HTTP links with HTTPS ones 2020-07-20 11:47:29 +02:00
mx3fb.c video: fbdev: mx3fb: Fix kernel-doc, set but not used and string warnings 2020-11-30 20:04:56 +01:00
n411.c
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neofb.c video: fbdev: neofb: Fix set but not used warning for CursorMem 2020-11-30 20:21:08 +01:00
ocfb.c
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offb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
p9100.c video: fbdev: sparc drivers: fix kernel-doc warnings for blank_mode 2020-12-08 18:34:08 +01:00
platinumfb.c
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platinumfb.h
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pm2fb.c video: fbdev: pm2fb: Fix kernel-doc warnings 2020-11-30 20:04:43 +01:00
pm3fb.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
pmag-aa-fb.c
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pmag-ba-fb.c
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pmagb-b-fb.c
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ps3fb.c powerpc/ps3: make system bus's remove and shutdown callbacks return void 2020-12-04 01:01:22 +11:00
pvr2fb.c video: fbdev: pvr2fb: initialize variables 2020-08-05 19:47:22 +02:00
pxa3xx-gcu.c
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pxa3xx-gcu.h
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pxa168fb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pxa168fb.h
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pxafb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pxafb.h
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q40fb.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
s1d13xxxfb.c video: fbdev: s1d13xxxfb: Fix kernel-doc and set but not used warnings 2020-11-29 22:51:07 +01:00
s3c-fb.c video: fbdev: s3c-fb: Fix kernel-doc and set but not used warnings 2020-12-05 21:01:04 +01:00
s3c2410fb-regs-lcd.h fbdev: s3c2410fb: remove mach header dependency 2020-08-20 17:48:12 +02:00
s3c2410fb.c fbdev: s3c2410fb: remove mach header dependency 2020-08-20 17:48:12 +02:00
s3c2410fb.h
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s3fb.c fbdev: s3fb: use generic power management 2020-09-08 13:33:19 +02:00
sa1100fb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sa1100fb.h
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sbuslib.c fbdev: sbuslib: remove compat_alloc_user_space usage 2020-09-25 16:34:50 +02:00
sbuslib.h
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sh7760fb.c
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sh_mobile_lcdcfb.c fbdev/sh_mobile: Drop unused include 2020-11-01 10:29:04 +01:00
sh_mobile_lcdcfb.h
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simplefb.c
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skeletonfb.c
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sm501fb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sm712.h
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sm712fb.c fbdev: sm712fb: handle ioremap() errors in probe 2020-09-08 13:33:02 +02:00
smscufx.c
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ssd1307fb.c video: fbdev: ssd1307fb: Added support to Column offset 2020-09-08 13:33:03 +02:00
sstfb.c video: fbdev: sstfb: Updated logging to fix set but not used warnings 2020-11-30 20:04:59 +01:00
sticore.h parisc/sticon: Add user font support 2020-10-15 08:12:59 +02:00
stifb.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
sunxvr500.c
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sunxvr1000.c
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sunxvr2500.c
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tcx.c video: fbdev: sparc drivers: fix kernel-doc warnings for blank_mode 2020-12-08 18:34:08 +01:00
tdfxfb.c video: fbdev: tdfx: Fix set but not used warning in att_outb() 2020-11-30 20:04:30 +01:00
tgafb.c video: fbdev: tgafb: Fix kernel-doc and set but not used warnings 2020-11-30 20:04:50 +01:00
tmiofb.c
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tridentfb.c
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udlfb.c udlfb: Fix memory leak in dlfb_usb_probe 2020-12-15 13:44:14 +01:00
uvesafb.c video: fbdev: uvesafb: Fix set but not used warning 2020-12-08 18:33:48 +01:00
valkyriefb.c
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valkyriefb.h
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vesafb.c
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vfb.c
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vga16fb.c Merge drm/drm-next into drm-misc-next 2020-09-14 18:11:40 +02:00
vt8500lcdfb.c
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vt8500lcdfb.h
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vt8623fb.c fbdev: vt8623fb: use generic power management 2020-09-08 13:33:18 +02:00
w100fb.c
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w100fb.h
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wm8505fb.c
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wm8505fb_regs.h
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wmt_ge_rops.c video: fbdev: wmt_ge_rops: Fix function not declared warnings 2020-12-08 18:34:36 +01:00
wmt_ge_rops.h
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xen-fbfront.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xilinxfb.c backlight/video: Use Platform getter/setter functions 2021-02-12 10:01:45 +00:00