diff options
| author | Maninder Singh <maninder1.s@samsung.com> | 2023-05-29 13:13:37 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-05-30 08:46:56 +0200 |
| commit | 719dfd5925e186e09a2a6f23016936ac436f3d78 (patch) | |
| tree | efcf30459349f9544fc5a6a55f987cd2845c512f /arch | |
| parent | powerpc/iommu: Limit number of TCEs to 512 for H_STUFF_TCE hcall (diff) | |
| download | linux-719dfd5925e186e09a2a6f23016936ac436f3d78.tar.xz linux-719dfd5925e186e09a2a6f23016936ac436f3d78.zip | |
powerpc/xmon: Use KSYM_NAME_LEN in array size
kallsyms_lookup() which in turn calls kallsyms_lookup_buildid() writes
to index "KSYM_NAME_LEN - 1".
Thus the array passed as namebuf to kallsyms_lookup() should be
KSYM_NAME_LEN in size.
In xmon.c the array was defined to be "128" bytes directly, without
using KSYM_NAME_LEN. Commit b8a94bfb3395 ("kallsyms: increase maximum
kernel symbol length to 512") changed the value to 512, but missed
updating the xmon code.
Fixes: b8a94bfb3395 ("kallsyms: increase maximum kernel symbol length to 512")
Cc: stable@vger.kernel.org # v6.1+
Co-developed-by: Onkarnath <onkarnath.1@samsung.com>
Signed-off-by: Onkarnath <onkarnath.1@samsung.com>
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
[mpe: Tweak change log wording and fix commit reference]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230529111337.352990-2-maninder1.s@samsung.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 728d3c257e4a..70c4c59a1a8f 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -88,7 +88,7 @@ static unsigned long ndump = 64; static unsigned long nidump = 16; static unsigned long ncsum = 4096; static int termch; -static char tmpstr[128]; +static char tmpstr[KSYM_NAME_LEN]; static int tracing_enabled; static long bus_error_jmp[JMP_BUF_LEN]; |