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linux/arch/s390
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Baoquan He 4aa9340584 s390/kexec: fix memory leak of ipl report buffer 
unreferenced object 0x38000195000 (size 4096):
  comm "kexec", pid 8548, jiffies 4294953647 (age 32443.270s)
  hex dump (first 32 bytes):
    00 00 00 c8 20 00 00 00 00 00 00 c0 02 80 00 00  .... ...........
    40 40 40 40 40 40 40 40 00 00 00 00 00 00 00 00  @@@@@@@@........
  backtrace:
    [<0000000011a2f199>] __vmalloc_node_range+0xc0/0x140
    [<0000000081fa2752>] vzalloc+0x5a/0x70
    [<0000000063a4c92d>] ipl_report_finish+0x2c/0x180
    [<00000000553304da>] kexec_file_add_ipl_report+0xf4/0x150
    [<00000000862d033f>] kexec_file_add_components+0x124/0x160
    [<000000000d2717bb>] arch_kexec_kernel_image_load+0x62/0x90
    [<000000002e0373b6>] kimage_file_alloc_init+0x1aa/0x2e0
    [<0000000060f2d14f>] __do_sys_kexec_file_load+0x17c/0x2c0
    [<000000008c86fe5a>] __s390x_sys_kexec_file_load+0x40/0x50
    [<000000001fdb9dac>] __do_syscall+0x1bc/0x1f0
    [<000000003ee4258d>] system_call+0x78/0xa0

Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Philipp Rudo <prudo@redhat.com>
Fixes: 99feaa717e ("s390/kexec_file: Create ipl report and pass to next kernel")
Cc: <stable@vger.kernel.org> # v5.2: 20c76e242e: s390/kexec: fix return code handling
Cc: <stable@vger.kernel.org> # v5.2
Link: https://lore.kernel.org/r/20211116033101.GD21646@MiWiFi-R3L-srv
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2021-11-18 17:50:07 +01:00
..
appldata s390/appldata: use struct_size() helper 2020-06-29 16:32:34 +02:00
boot s390/boot: simplify and fix kernel memory layout setup 2021-11-16 12:29:19 +01:00
configs s390: update defconfigs 2021-10-19 15:39:54 +02:00
crypto s390/archrandom: add parameter check for s390_arch_random_generate 2021-04-21 12:32:12 +02:00
hypfs s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
include s390/kexec: fix memory leak of ipl report buffer 2021-11-18 17:50:07 +01:00
kernel s390/kexec: fix memory leak of ipl report buffer 2021-11-18 17:50:07 +01:00
kvm s390 updates for the 5.16 merge window 2021-11-06 14:48:06 -07:00
lib s390 updates for the 5.16 merge window 2021-11-06 14:48:06 -07:00
mm Merge branch 'exit-cleanups-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2021-11-10 16:15:54 -08:00
net s390: introduce nospec_uses_trampoline() 2021-10-26 15:21:29 +02:00
pci s390/pci: implement minimal PCI error recovery 2021-11-08 14:17:49 +01:00
purgatory s390: enable KCSAN 2021-07-30 17:09:23 +02:00
tools s390/disassembler: add instructions 2021-07-27 09:39:19 +02:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig s390/boot: simplify and fix kernel memory layout setup 2021-11-16 12:29:19 +01:00
Kconfig.debug tracing: Refactor TRACE_IRQFLAGS_SUPPORT in Kconfig 2021-08-16 11:37:21 -04:00
Makefile s390/vdso: filter out -mstack-guard and -mstack-size 2021-11-16 12:29:19 +01:00