Vasily Gorbik 6f3353c2d2 s390/disassembler: increase ebpf disasm buffer size ... Current ebpf disassembly buffer size of 64 is too small. E.g. this line takes 65 bytes: 01fffff8005822e: ec8100ed8065\tclgrj\t%r8,%r1,8,001fffff80058408\n\0 Double the buffer size like it is done for the kernel disassembly buffer. Fixes the following KASAN finding: UG: KASAN: stack-out-of-bounds in print_fn_code+0x34c/0x380 Write of size 1 at addr 001fff800ad5f970 by task test_progs/853 CPU: 53 PID: 853 Comm: test_progs Not tainted 5.12.0-rc7-23786-g23457d86b1f0-dirty #19 Hardware name: IBM 3906 M04 704 (LPAR) Call Trace: [<0000000cd8e0538a>] show_stack+0x17a/0x1668 [<0000000cd8e2a5d8>] dump_stack+0x140/0x1b8 [<0000000cd8e16e74>] print_address_description.constprop.0+0x54/0x260 [<0000000cd75a8698>] kasan_report+0xc8/0x130 [<0000000cd6e26da4>] print_fn_code+0x34c/0x380 [<0000000cd6ea0f4e>] bpf_int_jit_compile+0xe3e/0xe58 [<0000000cd72c4c88>] bpf_prog_select_runtime+0x5b8/0x9c0 [<0000000cd72d1bf8>] bpf_prog_load+0xa78/0x19c0 [<0000000cd72d7ad6>] __do_sys_bpf.part.0+0x18e/0x768 [<0000000cd6e0f392>] do_syscall+0x12a/0x220 [<0000000cd8e333f8>] __do_syscall+0x98/0xc8 [<0000000cd8e54834>] system_call+0x6c/0x94 1 lock held by test_progs/853: #0: 0000000cd9bf7460 (report_lock){....}-{2:2}, at: kasan_report+0x96/0x130 addr 001fff800ad5f970 is located in stack of task test_progs/853 at offset 96 in frame: print_fn_code+0x0/0x380 this frame has 1 object: [32, 96) 'buffer' Memory state around the buggy address: 001fff800ad5f800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 001fff800ad5f880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >001fff800ad5f900: 00 00 f1 f1 f1 f1 00 00 00 00 00 00 00 00 f3 f3 ^ 001fff800ad5f980: f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 001fff800ad5fa00: 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00 00 Cc: <stable@vger.kernel.org> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>		2021-04-21 12:32:12 +02:00
..
alpha	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
arc	arch: setup PF_IO_WORKER threads like PF_KTHREAD	2021-02-21 17:25:22 -07:00
arm	A set of irqchip updates:	2021-03-14 13:33:33 -07:00
arm64	More fixes for ARM and x86.	2021-03-14 12:35:02 -07:00
csky	ftrace: Fix spelling mistake "disabed" -> "disabled"	2021-03-16 21:19:40 -07:00
h8300	arch: setup PF_IO_WORKER threads like PF_KTHREAD	2021-02-21 17:25:22 -07:00
hexagon	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
ia64	ia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign	2021-03-13 11:27:31 -08:00
m68k	m68k: Fix virt_addr_valid() W=1 compiler warnings	2021-03-06 14:15:07 +01:00
microblaze	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
mips	MIPS: vmlinux.lds.S: Fix appended dtb not properly aligned	2021-03-16 22:53:08 +01:00
nds32	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
nios2	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
openrisc	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
parisc	arch/parisc/kernel: remove duplicate include in ptrace	2021-03-04 09:12:29 +01:00
powerpc	powerpc: Force inlining of cpu_has_feature() to avoid build failure	2021-03-14 20:32:24 +11:00
riscv	riscv: Correct SPARSEMEM configuration	2021-03-16 22:15:21 -07:00
s390	s390/disassembler: increase ebpf disasm buffer size	2021-04-21 12:32:12 +02:00
sh	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
sparc	Merge git://git.kernel.org:/pub/scm/linux/kernel/git/davem/sparc	2021-03-09 17:08:41 -08:00
um	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
x86	Boundary condition fixes for bugs unearthed by the perf fuzzer.	2021-03-21 11:26:21 -07:00
xtensa	io_uring-worker.v3-2021-02-25	2021-02-27 08:29:02 -08:00
.gitignore
Kconfig	kbuild: remove LLVM=1 test from HAS_LTO_CLANG	2021-03-11 14:52:55 +09:00