CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52606 – powerpc/lib: Validate size for vector operations
https://notcve.org/view.php?id=CVE-2023-52606
In the Linux kernel, the following vulnerability has been resolved: powerpc/lib: Validate size for vector operations Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyse_instr(). Add a check to validate the assumption on the maximum size of the operations, so as to prevent any unintended kernel stack corruption. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: powerpc/lib: validar tamaño para operaciones vectoriales Parte del código fp/vmx en sstep.c asume un cierto tamaño máximo para las instrucciones que se emula. Sin embargo, el tamaño de esas operaciones se determina por separado en analyse_instr(). Agregue una verificación para validar la suposición sobre el tamaño máximo de las operaciones, a fin de evitar daños no deseados en la pila del kernel. • https://git.kernel.org/stable/c/42084a428a139f1a429f597d44621e3a18f3e414 https://git.kernel.org/stable/c/0580f4403ad33f379eef865c2a6fe94de37febdf https://git.kernel.org/stable/c/beee482cc4c9a6b1dcffb2e190b4fd8782258678 https://git.kernel.org/stable/c/de4f5ed63b8a199704d8cdcbf810309d7eb4b36b https://git.kernel.org/stable/c/abd26515d4b767ba48241eea77b28ce0872aef3e https://git.kernel.org/stable/c/28b8ba8eebf26f66d9f2df4ba550b6b3b136082c https://git.kernel.org/stable/c/848e1d7fd710900397e1d0e7584680c1c04e3afd https://git.kernel.org/stable/c/8f9abaa6d7de0a70fc68acaedce290c1f • CWE-121: Stack-based Buffer Overflow •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52604 – FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree
https://notcve.org/view.php?id=CVE-2023-52604
In the Linux kernel, the following vulnerability has been resolved: FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2867:6 index 196694 is out of range for type 's8[1365]' (aka 'signed char[1365]') CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348 dbAdjTree+0x474/0x4f0 fs/jfs/jfs_dmap.c:2867 dbJoin+0x210/0x2d0 fs/jfs/jfs_dmap.c:2834 dbFreeBits+0x4eb/0xda0 fs/jfs/jfs_dmap.c:2331 dbFreeDmap fs/jfs/jfs_dmap.c:2080 [inline] dbFree+0x343/0x650 fs/jfs/jfs_dmap.c:402 txFreeMap+0x798/0xd50 fs/jfs/jfs_txnmgr.c:2534 txUpdateMap+0x342/0x9e0 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline] jfs_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2732 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 </TASK> ================================================================================ Kernel panic - not syncing: UBSAN: panic_on_warn set ... CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 panic+0x30f/0x770 kernel/panic.c:340 check_panic_on_warn+0x82/0xa0 kernel/panic.c:236 ubsan_epilogue lib/ubsan.c:223 [inline] __ubsan_handle_out_of_bounds+0x13c/0x150 lib/ubsan.c:348 dbAdjTree+0x474/0x4f0 fs/jfs/jfs_dmap.c:2867 dbJoin+0x210/0x2d0 fs/jfs/jfs_dmap.c:2834 dbFreeBits+0x4eb/0xda0 fs/jfs/jfs_dmap.c:2331 dbFreeDmap fs/jfs/jfs_dmap.c:2080 [inline] dbFree+0x343/0x650 fs/jfs/jfs_dmap.c:402 txFreeMap+0x798/0xd50 fs/jfs/jfs_txnmgr.c:2534 txUpdateMap+0x342/0x9e0 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline] jfs_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2732 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 </TASK> Kernel Offset: disabled Rebooting in 86400 seconds.. The issue is caused when the value of lp becomes greater than CTLTREESIZE which is the max size of stree. Adding a simple check solves this issue. Dave: As the function returns a void, good error handling would require a more intrusive code reorganization, so I modified Osama's patch at use WARN_ON_ONCE for lack of a cleaner option. The patch is tested via syzbot. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: FS:JFS:UBSAN:array-index-out-of-bounds en dbAdjTree Syzkaller informó el siguiente problema: UBSAN: array-index-out-of-bounds en fs/jfs /jfs_dmap.c:2867:6 el índice 196694 está fuera del rango para el tipo 's8[1365]' (también conocido como 'carácter firmado[1365]') CPU: 1 PID: 109 Comm: jfsCommit No contaminado 6.6.0-rc3-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/08/2023 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en línea] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [en línea] __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348 dbAdjTree+0x474/0x4f0 fs/jfs/jfs_dmap.c:2867 dbJoin+0x210/0x2d0 fs/jfs/jfs _dmap.c: 2834 dbFreeBits+0x4eb/0xda0 fs/jfs/jfs_dmap.c:2331 dbFreeDmap fs/jfs/jfs_dmap.c:2080 [en línea] dbFree+0x343/0x650 fs/jfs/jfs_dmap.c:402 txFreeMap+0x798/0xd50 fs/j fs /jfs_txnmgr.c:2534 txUpdateMap+0x342/0x9e0 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [en línea] jfs_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2732 kthread+0x2d3/0x3 70 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 ============== ==================================================== ================ Pánico del kernel: no se sincroniza: UBSAN: pánico_on_warn configurado... CPU: 1 PID: 109 Comm: jfsCommit No contaminado 6.6.0-rc3-syzkaller #0 Hardware nombre: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/08/2023 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en línea] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 pánico+0x30f /0x770 Kernel/Panic.C: 340 check_panic_on_warn+0x82/0xa0 kernel/Panic.c: 236 UBSAN_EPILOGO LIB/UBSAN.C: 223 [Inline] __ubsan_handle_out_of_bounds+0x13c/0x150 LIB/UB/UBSAN.C: 4F0 FS /jfs/jfs_dmap.c:2867 dbJoin+0x210/0x2d0 fs/jfs/jfs_dmap.c:2834 dbFreeBits+0x4eb/0xda0 fs/jfs/jfs_dmap.c:2331 dbFreeDmap fs/jfs/jfs_dmap.c:2080 [en línea] dbFree +0x343/0x650 fs/jfs/jfs_dmap.c:402 txFreeMap+0x798/0xd50 fs/jfs/jfs_txnmgr.c:2534 txUpdateMap+0x342/0x9e0 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [en línea] jf s_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2732 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64. S:304 Desplazamiento del kernel: deshabilitado Reinicio en 86400 segundos. • https://git.kernel.org/stable/c/e3e95c6850661c77e6dab079d9b5374a618ebb15 https://git.kernel.org/stable/c/98f9537fe61b8382b3cc5dd97347531698517c56 https://git.kernel.org/stable/c/de34de6e57bbbc868e4fcf9e98c76b3587cabb0b https://git.kernel.org/stable/c/6fe8b702125aeee6ce83f20092a2341446704e7b https://git.kernel.org/stable/c/42f433785f108893de0dd5260bafb85d7d51db03 https://git.kernel.org/stable/c/6a44065dd604972ec1fbcccbdc4a70d266a89cdd https://git.kernel.org/stable/c/59342822276f753e49d27ef5eebffbba990572b9 https://git.kernel.org/stable/c/9862ec7ac1cbc6eb5ee4a045b5d5b8edb •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52603 – UBSAN: array-index-out-of-bounds in dtSplitRoot
https://notcve.org/view.php?id=CVE-2023-52603
In the Linux kernel, the following vulnerability has been resolved: UBSAN: array-index-out-of-bounds in dtSplitRoot Syzkaller reported the following issue: oop0: detected capacity change from 0 to 32768 UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:1971:9 index -2 is out of range for type 'struct dtslot [128]' CPU: 0 PID: 3613 Comm: syz-executor270 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xdb/0x130 lib/ubsan.c:283 dtSplitRoot+0x8d8/0x1900 fs/jfs/jfs_dtree.c:1971 dtSplitUp fs/jfs/jfs_dtree.c:985 [inline] dtInsert+0x1189/0x6b80 fs/jfs/jfs_dtree.c:863 jfs_mkdir+0x757/0xb00 fs/jfs/namei.c:270 vfs_mkdir+0x3b3/0x590 fs/namei.c:4013 do_mkdirat+0x279/0x550 fs/namei.c:4038 __do_sys_mkdirat fs/namei.c:4053 [inline] __se_sys_mkdirat fs/namei.c:4051 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4051 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fcdc0113fd9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb8bc67d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcdc0113fd9 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 00007fcdc00d37a0 R08: 0000000000000000 R09: 00007fcdc00d37a0 R10: 00005555559a72c0 R11: 0000000000000246 R12: 00000000f8008000 R13: 0000000000000000 R14: 00083878000000f8 R15: 0000000000000000 </TASK> The issue is caused when the value of fsi becomes less than -1. The check to break the loop when fsi value becomes -1 is present but syzbot was able to produce value less than -1 which cause the error. This patch simply add the change for the values less than 0. The patch is tested via syzbot. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: UBSAN: array-index-out-of-bounds en dtSplitRoot Syzkaller informó el siguiente problema: oop0: se detectó un cambio de capacidad de 0 a 32768 UBSAN: array-index-out-of- límites en fs/jfs/jfs_dtree.c:1971:9 índice -2 está fuera de rango para el tipo 'struct dtslot [128]' CPU: 0 PID: 3613 Comm: syz-executor270 No contaminado 6.0.0-syzkaller-09423- g493ffd6605b2 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 22/09/2022 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en línea] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c: 106 ubsan_epilogue lib/ubsan.c:151 [en línea] __ubsan_handle_out_of_bounds+0xdb/0x130 lib/ubsan.c:283 dtSplitRoot+0x8d8/0x1900 fs/jfs/jfs_dtree.c:1971 dtSplitUp fs/jfs/jfs_dtree.c:9 85 [en línea ] dtInsert+0x1189/0x6b80 fs/jfs/jfs_dtree.c:863 jfs_mkdir+0x757/0xb00 fs/jfs/namei.c:270 vfs_mkdir+0x3b3/0x590 fs/namei.c:4013 do_mkdirat+0x279/0x550 f s/namei. c:4038 __do_sys_mkdirat fs/namei.c:4053 [en línea] __se_sys_mkdirat fs/namei.c:4051 [en línea] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4051 do_syscall_x64 arch/x86/entry/common.c:50 [ inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fcdc0113fd9 Código: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 F7 48 89 D6 48 89 CA 4D 89 C2 4D 89 C8 4C 8B 4C 24 08 0F 05 <48> 3D 01 F0 FF FF 73 01 C3 48 C7 C1 C0 FF FF FF F7 D8 64 89 01 48 RSP: 002B: 00007ffeb8bc67d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00000000000000000 RCX: 00007fcdc0113fd9 RDX: 00000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 00007fcdc00d37a0 R08: 0000000000000000 R09: 00007fcdc00d37a0 R10: 00005555559a72c0 R11: 0000000000000246 R12: 00000000f8008000 R13: 0000000000000000 R14: 00083878000000f8 R15 : 0000000000000000 El problema se produce cuando el valor de fsi es inferior a -1. La verificación para romper el ciclo cuando el valor fsi se convierte en -1 está presente, pero syzbot pudo producir un valor menor que -1, lo que causa el error. Este parche simplemente agrega el cambio para los valores menores que 0. El parche se prueba a través de syzbot. • https://git.kernel.org/stable/c/e30b52a2ea3d1e0aaee68096957cf90a2f4ec5af https://git.kernel.org/stable/c/fd3486a893778770557649fe28afa5e463d4ed07 https://git.kernel.org/stable/c/7aa33854477d9c346f5560a1a1fcb3fe7783e2a8 https://git.kernel.org/stable/c/e4ce01c25ccbea02a09a5291c21749b1fc358e39 https://git.kernel.org/stable/c/e4cbc857d75d4e22a1f75446e7480b1f305d8d60 https://git.kernel.org/stable/c/edff092a59260bf0b0a2eba219cb3da6372c2f9f https://git.kernel.org/stable/c/6e2902ecc77e9760a9fc447f56d598383e2372d2 https://git.kernel.org/stable/c/27e56f59bab5ddafbcfe69ad7a4a6ea12 •
CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52602 – jfs: fix slab-out-of-bounds Read in dtSearch
https://notcve.org/view.php?id=CVE-2023-52602
In the Linux kernel, the following vulnerability has been resolved: jfs: fix slab-out-of-bounds Read in dtSearch Currently while searching for current page in the sorted entry table of the page there is a out of bound access. Added a bound check to fix the error. Dave: Set return code to -EIO En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jfs: arreglar slab-out-of-bounds Leer en dtSearch Actualmente, mientras se busca la página actual en la tabla de entradas ordenadas de la página, hay un acceso fuera de los límites. Se agregó un cheque encuadernado para corregir el error. Dave: establece el código de retorno en -EIO • https://git.kernel.org/stable/c/ce8bc22e948634a5c0a3fa58a179177d0e3f3950 https://git.kernel.org/stable/c/1b9d6828589d57f94a23fb1c46112cda39d7efdb https://git.kernel.org/stable/c/1c40ca3d39d769931b28295b3145c25f1decf5a6 https://git.kernel.org/stable/c/6c6a96c3d74df185ee344977d46944d6f33bb4dd https://git.kernel.org/stable/c/cab0c265ba182fd266c2aa3c69d7e40640a7f612 https://git.kernel.org/stable/c/7110650b85dd2f1cee819acd1345a9013a1a62f7 https://git.kernel.org/stable/c/bff9d4078a232c01e42e9377d005fb2f4d31a472 https://git.kernel.org/stable/c/fa5492ee89463a7590a1449358002ff7e • CWE-400: Uncontrolled Resource Consumption •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52601 – jfs: fix array-index-out-of-bounds in dbAdjTree
https://notcve.org/view.php?id=CVE-2023-52601
In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds in dbAdjTree Currently there is a bound check missing in the dbAdjTree while accessing the dmt_stree. To add the required check added the bool is_ctl which is required to determine the size as suggest in the following commit. https://lore.kernel.org/linux-kernel-mentees/f9475918-2186-49b8-b801-6f0f9e75f4fa@oracle.com/ En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jfs: corrige el índice de matriz fuera de los límites en dbAdjTree Actualmente falta una verificación de los límite en dbAdjTree al acceder a dmt_stree. Para agregar la verificación requerida, se agregó el bool is_ctl que se requiere para determinar el tamaño como se sugiere en el siguiente commit. https://lore.kernel.org/linux-kernel-mentees/f9475918-2186-49b8-b801-6f0f9e75f4fa@oracle.com/ • https://git.kernel.org/stable/c/3d3898b4d72c677d47fe3cb554449f2df5c12555 https://git.kernel.org/stable/c/3f8217c323fd6ecd6829a0c3ae7ac3f14eac368e https://git.kernel.org/stable/c/2037cb9d95f1741885f7daf50e8a028c4ade5317 https://git.kernel.org/stable/c/8393c80cce45f40c1256d72e21ad351b3650c57e https://git.kernel.org/stable/c/70780914cb57e2ba711e0ac1b677aaaa75103603 https://git.kernel.org/stable/c/2e16a1389b5a7983b45cb2aa20b0e3f0ee364d6c https://git.kernel.org/stable/c/fc67a2e18f4c4e3f07e9f9ae463da24530470e73 https://git.kernel.org/stable/c/74ecdda68242b174920fe7c6133a856fb •