# git rev-parse -q --verify 87066fdd2e30fe9dd531125d95257c118a74617e^{commit} 87066fdd2e30fe9dd531125d95257c118a74617e already have revision, skipping fetch # git checkout -q -f -B kisskb 87066fdd2e30fe9dd531125d95257c118a74617e # git clean -qxdf # < git log -1 # commit 87066fdd2e30fe9dd531125d95257c118a74617e # Author: Linus Torvalds # Date: Sun Oct 24 09:48:33 2021 -1000 # # Revert "mm/secretmem: use refcount_t instead of atomic_t" # # This reverts commit 110860541f443f950c1274f217a1a3e298670a33. # # Converting the "secretmem_users" counter to a refcount is incorrect, # because a refcount is special in zero and can't just be incremented (but # a count of users is not, and "no users" is actually perfectly valid and # not a sign of a free'd resource). # # Reported-by: syzbot+75639e6a0331cd61d3e2@syzkaller.appspotmail.com # Cc: Jordy Zomer # Cc: Kees Cook , # Cc: Jordy Zomer # Cc: James Bottomley # Cc: Mike Rapoport # Cc: Andrew Morton # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-ld --version # < git log --format=%s --max-count=1 87066fdd2e30fe9dd531125d95257c118a74617e # < make -s -j 8 ARCH=sh O=/kisskb/build/linus_se7750_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux- se7750_defconfig # < make -s -j 8 ARCH=sh O=/kisskb/build/linus_se7750_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux- help # make -s -j 8 ARCH=sh O=/kisskb/build/linus_se7750_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux- olddefconfig # make -s -j 8 ARCH=sh O=/kisskb/build/linus_se7750_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux- Generating include/generated/machtypes.h :1517:2: warning: #warning syscall clone3 not implemented [-Wcpp] In file included from /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:13: /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:105:24: note: in expansion of macro '_INTC_ARRAY' 105 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:215:8: note: in expansion of macro 'DECLARE_INTC_DESC' 215 | static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, NULL, | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:106:2: note: in expansion of macro '_INTC_ARRAY' 106 | _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:215:8: note: in expansion of macro 'DECLARE_INTC_DESC' 215 | static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, NULL, | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:107:2: note: in expansion of macro '_INTC_ARRAY' 107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:215:8: note: in expansion of macro 'DECLARE_INTC_DESC' 215 | static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, NULL, | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:107:27: note: in expansion of macro '_INTC_ARRAY' 107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:215:8: note: in expansion of macro 'DECLARE_INTC_DESC' 215 | static DECLARE_INTC_DESC(intc_desc, "sh7750", vectors, NULL, | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:105:24: note: in expansion of macro '_INTC_ARRAY' 105 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:229:8: note: in expansion of macro 'DECLARE_INTC_DESC' 229 | static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4", | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:106:2: note: in expansion of macro '_INTC_ARRAY' 106 | _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:229:8: note: in expansion of macro 'DECLARE_INTC_DESC' 229 | static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4", | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:107:2: note: in expansion of macro '_INTC_ARRAY' 107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:229:8: note: in expansion of macro 'DECLARE_INTC_DESC' 229 | static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4", | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:107:27: note: in expansion of macro '_INTC_ARRAY' 107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:229:8: note: in expansion of macro 'DECLARE_INTC_DESC' 229 | static DECLARE_INTC_DESC(intc_desc_dma4, "sh7750_dma4", | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:105:24: note: in expansion of macro '_INTC_ARRAY' 105 | _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:277:8: note: in expansion of macro 'DECLARE_INTC_DESC' 277 | static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL, | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:106:2: note: in expansion of macro '_INTC_ARRAY' 106 | _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:277:8: note: in expansion of macro 'DECLARE_INTC_DESC' 277 | static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL, | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:107:2: note: in expansion of macro '_INTC_ARRAY' 107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:277:8: note: in expansion of macro 'DECLARE_INTC_DESC' 277 | static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL, | ^~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div] 100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) | ^ /kisskb/src/include/linux/sh_intc.h:107:27: note: in expansion of macro '_INTC_ARRAY' 107 | _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ | ^~~~~~~~~~~ /kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC' 124 | .hw = INTC_HW_DESC(vectors, groups, mask_regs, \ | ^~~~~~~~~~~~ /kisskb/src/arch/sh/kernel/cpu/sh4/setup-sh7750.c:277:8: note: in expansion of macro 'DECLARE_INTC_DESC' 277 | static DECLARE_INTC_DESC(intc_desc_irlm, "sh7750_irlm", vectors_irlm, NULL, | ^~~~~~~~~~~~~~~~~ Kernel: arch/sh/boot/zImage is ready Completed OK # rm -rf /kisskb/build/linus_se7750_defconfig_sh4-gcc10 # Build took: 0:01:19.819963