Alexander Gordeev b08c3473ee s390/zcore: fix race when reading from hardware system area ...

[ Upstream commit 9ffed254d9 ]

Memory buffer used for reading out data from hardware system
area is not protected against concurrent access.

Reported-by: Matthew Wilcox <willy@infradead.org>
Fixes: 411ed32257 ("[S390] zfcpdump support.")
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Link: https://lore.kernel.org/r/e68137f0f9a0d2558f37becc20af18e2939934f6.1658206891.git.agordeev@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-08-17 14:24:10 +02:00

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con3215.c

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con3270.c

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ctrlchar.c

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ctrlchar.h

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defkeymap.c

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defkeymap.map

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diag_ftp.c

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diag_ftp.h

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fs3270.c

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hmcdrv_cache.c

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hmcdrv_cache.h

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hmcdrv_dev.c

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hmcdrv_dev.h

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hmcdrv_ftp.c

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hmcdrv_ftp.h

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hmcdrv_mod.c

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Kconfig

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keyboard.c

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keyboard.h

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Makefile

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monreader.c

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monwriter.c

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raw3270.c

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raw3270.h

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sclp_ap.c

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sclp_cmd.c

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sclp_con.c

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sclp_config.c

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sclp_cpi_sys.c

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sclp_cpi_sys.h

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sclp_ctl.c

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sclp_diag.h

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sclp_early_core.c

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sclp_early.c

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sclp_ftp.c

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sclp_ftp.h

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sclp_ocf.c

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sclp_pci.c

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sclp_quiesce.c

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sclp_rw.c

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sclp_rw.h

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sclp_sd.c

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sclp_sdias.c

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sclp_sdias.h

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sclp_tty.c

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sclp_tty.h

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sclp_vt220.c

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sclp.c

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sclp.h

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tape_34xx.c

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tape_3590.c

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tape_3590.h

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tape_char.c

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tape_class.c

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tape_class.h

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tape_core.c

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tape_proc.c

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tape_std.c

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tape_std.h

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tape.h

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tty3270.c

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tty3270.h

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vmcp.c

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vmlogrdr.c

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vmur.c

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vmur.h

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zcore.c

s390/zcore: fix race when reading from hardware system area

2022-08-17 14:24:10 +02:00