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linux/arch/s390
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Ilya Leoshkevich d5629d1af0 s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again 
commit 6a5abf8cf1 upstream.

Commit 7ded842b35 ("s390/bpf: Fix bpf_plt pointer arithmetic") has
accidentally removed the critical piece of commit c730fce7c7
("s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL"), causing
intermittent kernel panics in e.g. perf's on_switch() prog to reappear.

Restore the fix and add a comment.

Fixes: 7ded842b35 ("s390/bpf: Fix bpf_plt pointer arithmetic")
Cc: stable@vger.kernel.org
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Link: https://lore.kernel.org/r/20250716194524.48109-2-iii@linux.ibm.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-07-24 08:56:27 +02:00
..
appldata sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
boot s390/boot: Fix ESSA detection 2025-02-27 04:30:22 -08:00
configs s390: Update defconfigs 2024-10-16 11:32:32 +02:00
crypto crypto: s390/sha - Fix uninitialized variable in SHA-1 and SHA-2 2025-07-17 18:37:01 +02:00
hypfs hypfs_create_cpu_files(): add missing check for hypfs_mkdir() failure 2025-05-29 11:02:15 +02:00
include s390/tlb: Use mm_has_pgste() instead of mm_alloc_pgste() 2025-05-29 11:02:13 +02:00
kernel s390/entry: Fix last breaking event handling in case of stack corruption 2025-05-18 08:24:47 +02:00
kvm KVM: s390: rename PROT_NONE to PROT_TYPE_DUMMY 2025-06-27 11:11:23 +01:00
lib s390/alternatives: Rework to allow for callbacks 2024-07-23 16:02:31 +02:00
mm s390: Remove ioremap_wt() and pgprot_writethrough() 2025-04-10 14:39:18 +02:00
net s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again 2025-07-24 08:56:27 +02:00
pci s390/pci: Do not try re-enabling load/store if device is disabled 2025-07-10 16:04:41 +02:00
purgatory s390: Add '-std=gnu11' to decompressor and purgatory CFLAGS 2025-02-08 09:58:19 +01:00
tools s390 updates for 6.12 merge window 2024-09-21 09:02:54 -07:00
Kbuild - An extensive rework of kexec and crash Kconfig from Eric DeVolder 2023-08-29 14:53:51 -07:00
Kconfig s390/sclp: Initialize sclp subsystem via arch_cpu_finalize_init() 2025-02-08 09:58:07 +01:00
Kconfig.debug s390/Kconfig.debug: fix indentation 2022-06-01 12:03:15 +02:00
Makefile s390: Fix linker error when -no-pie option is unavailable 2025-04-20 10:15:59 +02:00
Makefile.postlink s390/build: Avoid relocation information in final vmlinux 2024-08-27 20:16:48 +02:00