CVE-2023-54196
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix NULL pointer dereference in 'ni_write_inode' Syzbot found the following issue: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000016 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000010af56000 [0000000000000016] pgd=08000001090da003, p4d=08000001090da003, pud=08000001090ce003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 3036 Comm: syz-executor206 Not tainted 6.0.0-rc6-syzkaller-17739-g16c9f284e746 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : is_rec_inuse fs/ntfs3/ntfs.h:313 [inline] pc : ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232 lr : ni_write_inode+0xa0/0x798 fs/ntfs3/frecord.c:3226 sp : ffff8000126c3800 x29: ffff8000126c3860 x28: 0000000000000000 x27: ffff0000c8b02000 x26: ffff0000c7502320 x25: ffff0000c7502288 x24: 0000000000000000 x23: ffff80000cbec91c x22: ffff0000c8b03000 x21: ffff0000c8b02000 x20: 0000000000000001 x19: ffff0000c75024d8 x18: 00000000000000c0 x17: ffff80000dd1b198 x16: ffff80000db59158 x15: ffff0000c4b6b500 x14: 00000000000000b8 x13: 0000000000000000 x12: ffff0000c4b6b500 x11: ff80800008be1b60 x10: 0000000000000000 x9 : ffff0000c4b6b500 x8 : 0000000000000000 x7 : ffff800008be1b50 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: is_rec_inuse fs/ntfs3/ntfs.h:313 [inline] ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232 ntfs_evict_inode+0x54/0x84 fs/ntfs3/inode.c:1744 evict+0xec/0x334 fs/inode.c:665 iput_final fs/inode.c:1748 [inline] iput+0x2c4/0x324 fs/inode.c:1774 ntfs_new_inode+0x7c/0xe0 fs/ntfs3/fsntfs.c:1660 ntfs_create_inode+0x20c/0xe78 fs/ntfs3/inode.c:1278 ntfs_create+0x54/0x74 fs/ntfs3/namei.c:100 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x804/0x11c4 fs/namei.c:3688 do_filp_open+0xdc/0x1b8 fs/namei.c:3718 do_sys_openat2+0xb8/0x22c fs/open.c:1311 do_sys_open fs/open.c:1327 [inline] __do_sys_openat fs/open.c:1343 [inline] __se_sys_openat fs/open.c:1338 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1338 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 Code: 97dafee4 340001b4 f9401328 2a1f03e0 (79402d14) ---[ end trace 0000000000000000 ]--- Above issue may happens as follows: ntfs_new_inode mi_init mi->mrec = kmalloc(sbi->record_size, GFP_NOFS); -->failed to allocate memory if (!mi->mrec) return -ENOMEM; iput iput_final evict ntfs_evict_inode ni_write_inode is_rec_inuse(ni->mi.mrec)-> As 'ni->mi.mrec' is NULL trigger NULL-ptr-deref To solve above issue if new inode failed make inode bad before call 'iput()' in 'ntfs_new_inode()'.
View original CVE JSON
{
"id": "CVE-2023-54196",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-12-30T13:16:07.653",
"lastModified": "2026-10-28T19:10:00.193",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix NULL pointer dereference in 'ni_write_inode'\n\nSyzbot found the following issue:\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000016\nMem abort info:\n ESR = 0x0000000096000006\n EC = 0x25: DABT (current EL), IL = 32 bits\n SET = 0, FnV = 0\n EA = 0, S1PTW = 0\n FSC = 0x06: level 2 translation fault\nData abort info:\n ISV = 0, ISS = 0x00000006\n CM = 0, WnR = 0\nuser pgtable: 4k pages, 48-bit VAs, pgdp=000000010af56000\n[0000000000000016] pgd=08000001090da003, p4d=08000001090da003, pud=08000001090ce003, pmd=0000000000000000\nInternal error: Oops: 0000000096000006 [#1] PREEMPT SMP\nModules linked in:\nCPU: 1 PID: 3036 Comm: syz-executor206 Not tainted 6.0.0-rc6-syzkaller-17739-g16c9f284e746 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]\npc : ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232\nlr : ni_write_inode+0xa0/0x798 fs/ntfs3/frecord.c:3226\nsp : ffff8000126c3800\nx29: ffff8000126c3860 x28: 0000000000000000 x27: ffff0000c8b02000\nx26: ffff0000c7502320 x25: ffff0000c7502288 x24: 0000000000000000\nx23: ffff80000cbec91c x22: ffff0000c8b03000 x21: ffff0000c8b02000\nx20: 0000000000000001 x19: ffff0000c75024d8 x18: 00000000000000c0\nx17: ffff80000dd1b198 x16: ffff80000db59158 x15: ffff0000c4b6b500\nx14: 00000000000000b8 x13: 0000000000000000 x12: ffff0000c4b6b500\nx11: ff80800008be1b60 x10: 0000000000000000 x9 : ffff0000c4b6b500\nx8 : 0000000000000000 x7 : ffff800008be1b50 x6 : 0000000000000000\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\nx2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000\nCall trace:\n is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]\n ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232\n ntfs_evict_inode+0x54/0x84 fs/ntfs3/inode.c:1744\n evict+0xec/0x334 fs/inode.c:665\n iput_final fs/inode.c:1748 [inline]\n iput+0x2c4/0x324 fs/inode.c:1774\n ntfs_new_inode+0x7c/0xe0 fs/ntfs3/fsntfs.c:1660\n ntfs_create_inode+0x20c/0xe78 fs/ntfs3/inode.c:1278\n ntfs_create+0x54/0x74 fs/ntfs3/namei.c:100\n lookup_open fs/namei.c:3413 [inline]\n open_last_lookups fs/namei.c:3481 [inline]\n path_openat+0x804/0x11c4 fs/namei.c:3688\n do_filp_open+0xdc/0x1b8 fs/namei.c:3718\n do_sys_openat2+0xb8/0x22c fs/open.c:1311\n do_sys_open fs/open.c:1327 [inline]\n __do_sys_openat fs/open.c:1343 [inline]\n __se_sys_openat fs/open.c:1338 [inline]\n __arm64_sys_openat+0xb0/0xe0 fs/open.c:1338\n __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]\n invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]\n el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142\n do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206\n el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636\n el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654\n el0t_64_sync+0x18c/0x190\nCode: 97dafee4 340001b4 f9401328 2a1f03e0 (79402d14)\n---[ end trace 0000000000000000 ]---\n\nAbove issue may happens as follows:\nntfs_new_inode\n mi_init\n mi->mrec = kmalloc(sbi->record_size, GFP_NOFS); -->failed to allocate memory\n if (!mi->mrec)\n return -ENOMEM;\niput\n iput_final\n evict\n ntfs_evict_inode\n ni_write_inode\n\t is_rec_inuse(ni->mi.mrec)-> As 'ni->mi.mrec' is NULL trigger NULL-ptr-deref\n\nTo solve above issue if new inode failed make inode bad before call 'iput()' in\n'ntfs_new_inode()'."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfs/ntfs3: Corrección de desreferencia de puntero NULL en ’ni_write_inode’\n\nSyzbot encontró el siguiente problema:\nNo se puede manejar la desreferencia de puntero NULL del kernel en la dirección virtual 0000000000000016\nInformación de aborto de memoria:\n ESR = 0x0000000096000006\n EC = 0x25: DABT (EL actual), IL = 32 bits\n SET = 0, FnV = 0\n EA = 0, S1PTW = 0\n FSC = 0x06: fallo de traducción de nivel 2\nInformación de aborto de datos:\n ISV = 0, ISS = 0x00000006\n CM = 0, WnR = 0\ntabla de páginas de usuario: páginas de 4k, VAs de 48 bits, pgdp=000000010af56000\n[0000000000000016] pgd=08000001090da003, p4d=08000001090da003, pud=08000001090ce003, pmd=0000000000000000\nError interno: Oops: 0000000096000006 [#1] PREEMPT SMP\nMódulos enlazados:\nCPU: 1 PID: 3036 Comm: syz-executor206 No contaminado 6.0.0-rc6-syzkaller-17739-g16c9f284e746 #0\nNombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]\npc : ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232\nlr : ni_write_inode+0xa0/0x798 fs/ntfs3/frecord.c:3226\nsp : ffff8000126c3800\nx29: ffff8000126c3860 x28: 0000000000000000 x27: ffff0000c8b02000\nx26: ffff0000c7502320 x25: ffff0000c7502288 x24: 0000000000000000\nx23: ffff80000cbec91c x22: ffff0000c8b03000 x21: ffff0000c8b02000\nx20: 0000000000000001 x19: ffff0000c75024d8 x18: 00000000000000c0\nx17: ffff80000dd1b198 x16: ffff80000db59158 x15: ffff0000c4b6b500\nx14: 00000000000000b8 x13: 0000000000000000 x12: ffff0000c4b6b500\nx11: ff80800008be1b60 x10: 0000000000000000 x9 : ffff0000c4b6b500\nx8 : 0000000000000000 x7 : ffff800008be1b50 x6 : 0000000000000000\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\nx2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000\nTraza de llamada:\n is_rec_inuse fs/ntfs3/ntfs.h:313 [inline]\n ni_write_inode+0xac/0x798 fs/ntfs3/frecord.c:3232\n ntfs_evict_inode+0x54/0x84 fs/ntfs3/inode.c:1744\n evict+0xec/0x334 fs/inode.c:665\n iput_final fs/inode.c:1748 [inline]\n iput+0x2c4/0x324 fs/inode.c:1774\n ntfs_new_inode+0x7c/0xe0 fs/ntfs3/fsntfs.c:1660\n ntfs_create_inode+0x20c/0xe78 fs/ntfs3/inode.c:1278\n ntfs_create+0x54/0x74 fs/ntfs3/namei.c:100\n lookup_open fs/namei.c:3413 [inline]\n open_last_lookups fs/namei.c:3481 [inline]\n path_openat+0x804/0x11c4 fs/namei.c:3688\n do_filp_open+0xdc/0x1b8 fs/namei.c:3718\n do_sys_openat2+0xb8/0x22c fs/open.c:1311\n do_sys_open fs/open.c:1327 [inline]\n __do_sys_openat fs/open.c:1343 [inline]\n __se_sys_openat fs/open.c:1338 [inline]\n __arm64_sys_openat+0xb0/0xe0 fs/open.c:1338\n __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]\n invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]\n el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142\n do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206\n el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636\n el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654\n el0t_64_sync+0x18c/0x190\nCódigo: 97dafee4 340001b4 f9401328 2a1f03e0 (79402d14)\n---[ fin de la traza 0000000000000000 ]---\n\nEl problema anterior puede ocurrir de la siguiente manera:\nntfs_new_inode\n mi_init\n mi -> mrec = kmalloc(sbi -> record_size, GFP_NOFS); - falló al asignar memoria\n if (!mi -> mrec)\n return -ENOMEM;\niput\n iput_final\n evict\n ntfs_evict_inode\n ni_write_inode\n\t is_rec_inuse(ni -> mi.mrec) -> Como ’ni -> mi.mrec’ es NULL, se activa la desreferencia de puntero NULL\n\nPara resolver el problema anterior, si el nuevo inodo falló, marcar el inodo como defectuoso antes de llamar a ’iput()’ en\n’ntfs_new_inode’."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"fs/ntfs3/fsntfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "6d3d3283e6b4fb3f3ee05dac30ee1461930b8103",
"versionType": "git",
"status": "affected"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "329fc4d3f73d865b25f2ee4eafafb040ace37ad5",
"versionType": "git",
"status": "affected"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "1c5cffe0d662fb2de7b63176c2582abb69b5f538",
"versionType": "git",
"status": "affected"
},
{
"version": "82cae269cfa953032fbb8980a7d554d60fb00b17",
"lessThan": "db2a3cc6a3481076da6344cc62a80a4e2525f36f",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"fs/ntfs3/fsntfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "5.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.15",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.113",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.81",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.3.4",
"lessThanOrEqual": "6.3.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.4",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/1c5cffe0d662fb2de7b63176c2582abb69b5f538",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/329fc4d3f73d865b25f2ee4eafafb040ace37ad5",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6d3d3283e6b4fb3f3ee05dac30ee1461930b8103",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/db2a3cc6a3481076da6344cc62a80a4e2525f36f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}