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Commit 7d4ee289 authored by David S. Miller's avatar David S. Miller
Browse files

sparc: Fix user_regset 'n' field values. 



As noticed by Russell King, we were not setting this properly
to the number of entries, but rather the total size.

This results in the core dumping code allocating waayyyy too
much memory.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 80a56ab6

arch/sparc/kernel/ptrace.c

+2 −2
Original line number Diff line number Diff line
@@ -288,7 +288,7 @@ static const struct user_regset sparc32_regsets[] = { 
	 */

	[REGSET_GENERAL] = {

		.core_note_type = NT_PRSTATUS,

		.n = 38 * sizeof(u32),

		.n = 38,

		.size = sizeof(u32), .align = sizeof(u32),

		.get = genregs32_get, .set = genregs32_set

	},
@@ -304,7 +304,7 @@ static const struct user_regset sparc32_regsets[] = { 
	 */

	[REGSET_FP] = {

		.core_note_type = NT_PRFPREG,

		.n = 99 * sizeof(u32),

		.n = 99,

		.size = sizeof(u32), .align = sizeof(u32),

		.get = fpregs32_get, .set = fpregs32_set

	},

arch/sparc64/kernel/ptrace.c

+4 −4
Original line number Diff line number Diff line
@@ -443,7 +443,7 @@ static const struct user_regset sparc64_regsets[] = { 
	 */

	[REGSET_GENERAL] = {

		.core_note_type = NT_PRSTATUS,

		.n = 36 * sizeof(u64),

		.n = 36,

		.size = sizeof(u64), .align = sizeof(u64),

		.get = genregs64_get, .set = genregs64_set

	},
@@ -455,7 +455,7 @@ static const struct user_regset sparc64_regsets[] = { 
	 */

	[REGSET_FP] = {

		.core_note_type = NT_PRFPREG,

		.n = 35 * sizeof(u64),

		.n = 35,

		.size = sizeof(u64), .align = sizeof(u64),

		.get = fpregs64_get, .set = fpregs64_set

	},
@@ -801,7 +801,7 @@ static const struct user_regset sparc32_regsets[] = { 
	 */

	[REGSET_GENERAL] = {

		.core_note_type = NT_PRSTATUS,

		.n = 38 * sizeof(u32),

		.n = 38,

		.size = sizeof(u32), .align = sizeof(u32),

		.get = genregs32_get, .set = genregs32_set

	},
@@ -817,7 +817,7 @@ static const struct user_regset sparc32_regsets[] = { 
	 */

	[REGSET_FP] = {

		.core_note_type = NT_PRFPREG,

		.n = 99 * sizeof(u32),

		.n = 99,

		.size = sizeof(u32), .align = sizeof(u32),

		.get = fpregs32_get, .set = fpregs32_set

	},