CVE-2022-48659

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm/slub: corrección para devolver errno si kmalloc() falla. En create_unique_id(), kmalloc(, GFP_KERNEL) puede fallar debido a falta de memoria, si falla, regrese errno correctamente en lugar de provocar pánico mediante BUG_ON(); ¡ERROR del kernel en mm/slub.c:5893! Error interno: Ups - ERROR: 0 [#1] Seguimiento de llamada SMP PREEMPT: sysfs_slab_add+0x258/0x260 mm/slub.c:5973 __kmem_cache_create+0x60/0x118 mm/slub.c:4899 create_cache mm/slab_common.c:229 [ en línea] kmem_cache_create_usercopy+0x19c/0x31c mm/slab_common.c:335 kmem_cache_create+0x1c/0x28 mm/slab_common.c:390 f2fs_kmem_cache_create fs/f2fs/f2fs.h:2766 [en línea] f2fs_init_xattr_caches+0x 78/0xb4 fs/f2fs/xattr. c:808 f2fs_fill_super+0x1050/0x1e0c fs/f2fs/super.c:4149 mount_bdev+0x1b8/0x210 fs/super.c:1400 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4512 Legacy_get_tree+0x30/0x74 fs/ fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1530 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x914 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [ en línea] __do_sys_mount fs/namespace.c:3591 [en línea] __se_sys_mount fs/namespace.c:3568 [en línea] __arm64_sys_mount+0x2f8/0x408 fs/namespace.c:3568

In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc() fails In create_unique_id(), kmalloc(, GFP_KERNEL) can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUG_ON(); kernel BUG at mm/slub.c:5893! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Call trace: sysfs_slab_add+0x258/0x260 mm/slub.c:5973 __kmem_cache_create+0x60/0x118 mm/slub.c:4899 create_cache mm/slab_common.c:229 [inline] kmem_cache_create_usercopy+0x19c/0x31c mm/slab_common.c:335 kmem_cache_create+0x1c/0x28 mm/slab_common.c:390 f2fs_kmem_cache_create fs/f2fs/f2fs.h:2766 [inline] f2fs_init_xattr_caches+0x78/0xb4 fs/f2fs/xattr.c:808 f2fs_fill_super+0x1050/0x1e0c fs/f2fs/super.c:4149 mount_bdev+0x1b8/0x210 fs/super.c:1400 f2fs_mount+0x44/0x58 fs/f2fs/super.c:4512 legacy_get_tree+0x30/0x74 fs/fs_context.c:610 vfs_get_tree+0x40/0x140 fs/super.c:1530 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x914 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2f8/0x408 fs/namespace.c:3568

Yuxuan Hu discovered that the Bluetooth RFCOMM protocol driver in the Linux Kernel contained a race condition, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of service. It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a denial of service.