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Filename Latest commit message Latest commit date
Helge Deller f0ef0e2299 scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()
commit 2f4843b172c2c0360ee7792ad98025fae7baefde upstream.

The mptscsih_remove() function triggers a kernel oops if the Scsi_Host
pointer (ioc->sh) is NULL, as can be seen in this syslog:

 ioc0: LSI53C1030 B2: Capabilities={Initiator,Target}
 Begin: Waiting for root file system ...
 scsi host2: error handler thread failed to spawn, error = -4
 mptspi: ioc0: WARNING - Unable to register controller with SCSI subsystem
 Backtrace:
  [<000000001045b7cc>] mptspi_probe+0x248/0x3d0 [mptspi]
  [<0000000040946470>] pci_device_probe+0x1ac/0x2d8
  [<0000000040add668>] really_probe+0x1bc/0x988
  [<0000000040ade704>] driver_probe_device+0x160/0x218
  [<0000000040adee24>] device_driver_attach+0x160/0x188
  [<0000000040adef90>] __driver_attach+0x144/0x320
  [<0000000040ad7c78>] bus_for_each_dev+0xd4/0x158
  [<0000000040adc138>] driver_attach+0x4c/0x80
  [<0000000040adb3ec>] bus_add_driver+0x3e0/0x498
  [<0000000040ae0130>] driver_register+0xf4/0x298
  [<00000000409450c4>] __pci_register_driver+0x78/0xa8
  [<000000000007d248>] mptspi_init+0x18c/0x1c4 [mptspi]

This patch adds the necessary NULL-pointer checks.  Successfully tested on
a HP C8000 parisc workstation with buggy SCSI drives.

Link: https://lore.kernel.org/r/20201022090005.GA9000@ls3530.fritz.box
Cc: <stable@vger.kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-05 11:43:25 +01:00
arch perf/x86/amd/ibs: Fix raw sample data accumulation 2020-11-05 11:43:23 +01:00
block block: ratelimit handle_bad_sector() message 2020-10-29 09:58:01 +01:00
certs
crypto crypto: algif_skcipher - EBUSY on aio should be an error 2020-10-29 09:57:30 +01:00
Documentation media: videodev2.h: RGB BT2020 and HSV are always full range 2020-11-05 11:43:15 +01:00
drivers scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove() 2020-11-05 11:43:25 +01:00
fs NFS: fix nfs_path in case of a rename retry 2020-11-05 11:43:24 +01:00
include usb: typec: tcpm: During PR_SWAP, source caps should be sent only after tSwapSourceStart 2020-11-05 11:43:15 +01:00
init printk: reduce LOG_BUF_SHIFT range for H8300 2020-11-05 11:43:16 +01:00
ipc
kernel seccomp: Make duplicate listener detection non-racy 2020-11-05 11:43:23 +01:00
lib sgl_alloc_order: fix memory leak 2020-11-05 11:43:22 +01:00
LICENSES
mm mm/page_owner: change split_page_owner to take a count 2020-10-29 09:57:52 +01:00
net net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid 2020-11-05 11:43:20 +01:00
samples samples/bpf: Fix possible deadlock in xdpsock 2020-11-05 11:43:17 +01:00
scripts scripts/setlocalversion: make git describe output more reliable 2020-11-01 12:01:01 +01:00
security evm: Check size of security.evm before using it 2020-11-01 12:01:05 +01:00
sound ALSA: hda/ca0132 - Add new quirk ID for SoundBlaster AE-7. 2020-10-29 09:58:09 +01:00
tools selftests/x86/fsgsbase: Test PTRACE_PEEKUSER for GSBASE with invalid LDT GS 2020-11-05 11:43:23 +01:00
usr
virt KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch 2020-10-01 13:18:25 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-08-26 10:40:46 +02:00
Makefile Linux 5.4.74 2020-11-01 12:01:07 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.