linux-stable

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Alexandra Winter b0d2bb5e31 net/iucv: Fix size of interrupt data [ Upstream commit `3d87debb8e` ] iucv_irq_data needs to be 4 bytes larger. These bytes are not used by the iucv module, but written by the z/VM hypervisor in case a CPU is deconfigured. Reported as: BUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten ----------------------------------------------------------------------------- 0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc Allocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1 __kmem_cache_alloc_node+0x166/0x450 kmalloc_node_trace+0x3a/0x70 iucv_cpu_prepare+0x44/0xd0 cpuhp_invoke_callback+0x156/0x2f0 cpuhp_issue_call+0xf0/0x298 __cpuhp_setup_state_cpuslocked+0x136/0x338 __cpuhp_setup_state+0xf4/0x288 iucv_init+0xf4/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Freed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1 __kmem_cache_free+0x308/0x358 iucv_init+0x92/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Slab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab\|head\|node=0\|zone=0\| Object 0x0000000000400540 @offset=1344 fp=0x0000000000000000 Redzone 0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Object 0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00 ................ Object 0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2 ................ Object 0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc ................ Object 0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400580: cc cc cc cc cc cc cc cc ........ Padding 00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ CPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1 Hardware name: IBM 3931 A01 704 (z/VM 7.3.0) Call Trace: [<000000032aa034ec>] dump_stack_lvl+0xac/0x100 [<0000000329f5a6cc>] check_bytes_and_report+0x104/0x140 [<0000000329f5aa78>] check_object+0x370/0x3c0 [<0000000329f5ede6>] free_debug_processing+0x15e/0x348 [<0000000329f5f06a>] free_to_partial_list+0x9a/0x2f0 [<0000000329f5f4a4>] __slab_free+0x1e4/0x3a8 [<0000000329f61768>] __kmem_cache_free+0x308/0x358 [<000000032a91465c>] iucv_cpu_dead+0x6c/0x88 [<0000000329c2fc66>] cpuhp_invoke_callback+0x156/0x2f0 [<000000032aa062da>] _cpu_down.constprop.0+0x22a/0x5e0 [<0000000329c3243e>] cpu_device_down+0x4e/0x78 [<000000032a61dee0>] device_offline+0xc8/0x118 [<000000032a61e048>] online_store+0x60/0xe0 [<000000032a08b6b0>] kernfs_fop_write_iter+0x150/0x1e8 [<0000000329fab65c>] vfs_write+0x174/0x360 [<0000000329fab9fc>] ksys_write+0x74/0x100 [<000000032aa03a5a>] __do_syscall+0x1da/0x208 [<000000032aa177b2>] system_call+0x82/0xb0 INFO: lockdep is turned off. FIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc FIX dma-kmalloc-64: Object at 0x0000000000400540 not freed Fixes: `2356f4cb19` ("[S390]: Rewrite of the IUCV base code, part 2") Signed-off-by: Alexandra Winter <wintera@linux.ibm.com> Link: https://lore.kernel.org/r/20230315131435.4113889-1-wintera@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-03-22 13:27:10 +01:00
arch	alpha: fix R_ALPHA_LITERAL reloc for large modules	2023-03-17 08:31:43 +01:00
block	block: bio-integrity: Copy flags when bio_integrity_payload is cloned	2023-03-11 16:31:33 +01:00
certs	certs/blacklist_hashes.c: fix const confusion in certs blacklist	2022-06-25 11:49:16 +02:00
crypto	crypto: rsa-pkcs1pad - Use akcipher_request_complete	2023-03-11 16:31:37 +01:00
Documentation	Documentation/hw-vuln: Document the interaction between IBRS and STIBP	2023-03-11 16:31:51 +01:00
drivers	net: usb: smsc75xx: Move packet length check to prevent kernel panic in skb_pull	2023-03-22 13:27:10 +01:00
firmware	Fix built-in early-load Intel microcode alignment	2020-01-23 08:21:29 +01:00
fs	fs: sysfs_emit_at: Remove PAGE_SIZE alignment check	2023-03-22 13:27:08 +01:00
include	net: tunnels: annotate lockless accesses to dev->needed_headroom	2023-03-22 13:27:09 +01:00
init	random: handle latent entropy and command line from random_init()	2022-06-25 11:49:11 +02:00
ipc	ipc/sem: Fix dangling sem_array access in semtimedop race	2022-12-08 11:18:35 +01:00
kernel	tracing: Add NULL checks for buffer in ring_buffer_free_read_page()	2023-03-11 16:31:59 +01:00
lib	lib/mpi: Fix buffer overrun when SG is too long	2023-03-11 16:31:35 +01:00
LICENSES	LICENSES: Remove CC-BY-SA-4.0 license text	2018-10-18 11:28:50 +02:00
mm	migrate: hugetlb: check for hugetlb shared PMD in node migration	2023-02-22 12:47:19 +01:00
net	net/iucv: Fix size of interrupt data	2023-03-22 13:27:10 +01:00
samples	samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe()	2023-01-18 11:30:28 +01:00
scripts	kbuild: generate modules.order only in directories visited by obj-y/m	2023-03-17 08:31:43 +01:00
security	ima: Align ima_file_mmap() parameters with mmap_file LSM hook	2023-03-11 16:31:51 +01:00
sound	ALSA: ice1712: Do not left ice->gpio_mutex locked in aureon_add_controls()	2023-03-11 16:31:52 +01:00
tools	tools/iio/iio_utils:fix memory leak	2023-03-11 16:32:01 +01:00
usr	initramfs: restore default compression behavior	2020-04-13 10:44:59 +02:00
virt	KVM: arm64: vgic: Fix exit condition in scan_its_table()	2022-11-03 23:52:24 +09:00
.clang-format	clang-format: Set IndentWrappedFunctionNames false	2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
COPYING
CREDITS	9p: remove Ron Minnich from MAINTAINERS	2018-08-17 16:20:26 -07:00
Kbuild
Kconfig	kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt	2018-08-02 08:06:55 +09:00
MAINTAINERS	MAINTAINERS: co-maintain random.c	2022-06-25 11:49:01 +02:00
Makefile	Linux 4.19.278	2023-03-17 08:31:44 +01:00
README

README

Linux kernel
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Please read the Documentation/process/changes.rst file, as it contains the
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