CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0CVE-2024-39495 – greybus: Fix use-after-free bug in gb_interface_release due to race condition.
https://notcve.org/view.php?id=CVE-2024-39495
In the Linux kernel, the following vulnerability has been resolved: greybus: Fix use-after-free bug in gb_interface_release due to race condition. In gb_interface_create, &intf->mode_switch_completion is bound with gb_interface_mode_switch_work. Then it will be started by gb_interface_request_mode_switch. Here is the relevant code. if (!queue_work(system_long_wq, &intf->mode_switch_work)) { ... } If we call gb_interface_release to make cleanup, there may be an unfinished work. This function will call kfree to free the object "intf". • https://git.kernel.org/stable/c/74cd0a421896b2e07eafe7da4275302bfecef201 https://git.kernel.org/stable/c/2b6bb0b4abfd79b8698ee161bb73c0936a2aaf83 https://git.kernel.org/stable/c/fb071f5c75d4b1c177824de74ee75f9dd34123b9 https://git.kernel.org/stable/c/9a733d69a4a59c2d08620e6589d823c24be773dc https://git.kernel.org/stable/c/0b8fba38bdfb848fac52e71270b2aa3538c996ea https://git.kernel.org/stable/c/03ea2b129344152157418929f06726989efc0445 https://git.kernel.org/stable/c/5c9c5d7f26acc2c669c1dcf57d1bb43ee99220ce • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2024-39494 – ima: Fix use-after-free on a dentry's dname.name
https://notcve.org/view.php?id=CVE-2024-39494
In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ima: corrige el use-after-free en dentry dname.name ->d_name.name puede cambiar al cambiar el nombre y el valor anterior se puede liberar; existen condiciones suficientes para estabilizarlo (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusivo en el inodo del padre, rename_lock), pero ninguna de ellas se cumple en ninguno de los sitios. En su lugar, tome una instantánea estable del nombre. • https://git.kernel.org/stable/c/7fb374981e31c193b1152ed8d3b0a95b671330d4 https://git.kernel.org/stable/c/dd431c3ac1fc34a9268580dd59ad3e3c76b32a8c https://git.kernel.org/stable/c/a78a6f0da57d058e2009e9958fdcef66f165208c https://git.kernel.org/stable/c/be84f32bb2c981ca670922e047cdde1488b233de • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-39487 – bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set()
https://notcve.org/view.php?id=CVE-2024-39487
In the Linux kernel, the following vulnerability has been resolved: bonding: Fix out-of-bounds read in bond_option_arp_ip_targets_set() In function bond_option_arp_ip_targets_set(), if newval->string is an empty string, newval->string+1 will point to the byte after the string, causing an out-of-bound read. BUG: KASAN: slab-out-of-bounds in strlen+0x7d/0xa0 lib/string.c:418 Read of size 1 at addr ffff8881119c4781 by task syz-executor665/8107 CPU: 1 PID: 8107 Comm: syz-executor665 Not tainted 6.7.0-rc7 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc1/0x5e0 mm/kasan/report.c:475 kasan_report+0xbe/0xf0 mm/kasan/report.c:588 strlen+0x7d/0xa0 lib/string.c:418 __fortify_strlen include/linux/fortify-string.h:210 [inline] in4_pton+0xa3/0x3f0 net/core/utils.c:130 bond_option_arp_ip_targets_set+0xc2/0x910 drivers/net/bonding/bond_options.c:1201 __bond_opt_set+0x2a4/0x1030 drivers/net/bonding/bond_options.c:767 __bond_opt_set_notify+0x48/0x150 drivers/net/bonding/bond_options.c:792 bond_opt_tryset_rtnl+0xda/0x160 drivers/net/bonding/bond_options.c:817 bonding_sysfs_store_option+0xa1/0x120 drivers/net/bonding/bond_sysfs.c:156 dev_attr_store+0x54/0x80 drivers/base/core.c:2366 sysfs_kf_write+0x114/0x170 fs/sysfs/file.c:136 kernfs_fop_write_iter+0x337/0x500 fs/kernfs/file.c:334 call_write_iter include/linux/fs.h:2020 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x96a/0xd80 fs/read_write.c:584 ksys_write+0x122/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b ---[ end trace ]--- Fix it by adding a check of string length before using it. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bonding: corrige la lectura fuera de los límites en bond_option_arp_ip_targets_set() En la función bond_option_arp_ip_targets_set(), si newval->string es una cadena vacía, newval->string+1 apuntará a el byte después de la cadena, lo que provoca una lectura fuera de los límites. ERROR: KASAN: slab-out-of-bounds en strlen+0x7d/0xa0 lib/string.c:418 Lectura del tamaño 1 en la dirección ffff8881119c4781 por tarea syz-executor665/8107 CPU: 1 PID: 8107 Comm: syz-executor665 No tainted 6.7.0-rc7 #1 Nombre del hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS 1.15.0-1 01/04/2014 Seguimiento de llamadas: __dump_stack lib/dump_stack.c:88 [en línea] dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [en línea] print_report+0xc1/0x5e0 mm/kasan/report.c:475 kasan_report+0xbe/0xf0 mm/kasan/report. c:588 strlen+0x7d/0xa0 lib/string.c:418 __fortify_strlen include/linux/fortify-string.h:210 [en línea] in4_pton+0xa3/0x3f0 net/core/utils.c:130 bond_option_arp_ip_targets_set+0xc2/0x910 controladores /net/bonding/bond_options.c:1201 __bond_opt_set+0x2a4/0x1030 controladores/net/bonding/bond_options.c: 767 __bond_opt_set_notify+0x48/0x150 Drivers/net/bonding/bond_options.c: 792 bond_pt_tryset neto /bonding/bond_options.c:817 bonding_sysfs_store_option+0xa1/0x120 drivers/net/bonding/bond_sysfs.c:156 dev_attr_store+0x54/0x80 drivers/base/core.c:2366 sysfs_kf_write+0x114/0x170 fs/sysfs/file.c :136 kernfs_fop_write_iter+0x337/0x500 fs/kernfs/file.c:334 call_write_iter include/linux/fs.h:2020 [en línea] new_sync_write fs/read_write.c:491 [en línea] vfs_write+0x96a/0xd80 fs/read_write.c :584 ksys_write+0x122/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:52 [en línea] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 Entry_SYSCALL_64_after_hwframe+0x63/0x6 ---[rastreo final]--- Solucionelo agregando una verificación de la longitud de la cadena antes de usarlo. • https://git.kernel.org/stable/c/f9de11a165943a55e0fbda714caf60eaeb276a42 https://git.kernel.org/stable/c/6a8a4fd082c439e19fede027e80c79bc4c84bb8e https://git.kernel.org/stable/c/6b21346b399fd1336fe59233a17eb5ce73041ee1 https://git.kernel.org/stable/c/707c85ba3527ad6aa25552033576b0f1ff835d7b https://git.kernel.org/stable/c/bfd14e5915c2669f292a31d028e75dcd82f1e7e9 https://git.kernel.org/stable/c/c8eb8ab9a44ff0e73492d0a12a643c449f641a9f https://git.kernel.org/stable/c/b75e33eae8667084bd4a63e67657c6a5a0f8d1e8 https://git.kernel.org/stable/c/9f835e48bd4c75fdf6a9cff3f0b806a7a •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-39484 – mmc: davinci: Don't strip remove function when driver is builtin
https://notcve.org/view.php?id=CVE-2024-39484
In the Linux kernel, the following vulnerability has been resolved: mmc: davinci: Don't strip remove function when driver is builtin Using __exit for the remove function results in the remove callback being discarded with CONFIG_MMC_DAVINCI=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally. This also fixes a W=1 modpost warning: WARNING: modpost: drivers/mmc/host/davinci_mmc: section mismatch in reference: davinci_mmcsd_driver+0x10 (section: .data) -> davinci_mmcsd_remove (section: .exit.text) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mmc: davinci: no eliminar la función de eliminación cuando el controlador está integrado. El uso de __exit para la función de eliminación hace que la devolución de llamada de eliminación se descarte con CONFIG_MMC_DAVINCI=y. • https://git.kernel.org/stable/c/b4cff4549b7a8c5fc8b88e3493b6287555f0512c https://git.kernel.org/stable/c/6ff7cfa02baabec907f6f29ea76634e6256d2ec4 https://git.kernel.org/stable/c/aea35157bb9b825faa0432bd0f7fbea37ff39aa1 https://git.kernel.org/stable/c/5ee241f72edc6dce5051a5f100eab6cc019d873e https://git.kernel.org/stable/c/7590da4c04dd4aa9c262da0231e978263861c6eb https://git.kernel.org/stable/c/1d5ed0efe51d36b9ae9b64f133bf41cdbf56f584 https://git.kernel.org/stable/c/55c421b364482b61c4c45313a535e61ed5ae4ea3 • CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-39482 – bcache: fix variable length array abuse in btree_iter
https://notcve.org/view.php?id=CVE-2024-39482
In the Linux kernel, the following vulnerability has been resolved: bcache: fix variable length array abuse in btree_iter btree_iter is used in two ways: either allocated on the stack with a fixed size MAX_BSETS, or from a mempool with a dynamic size based on the specific cache set. Previously, the struct had a fixed-length array of size MAX_BSETS which was indexed out-of-bounds for the dynamically-sized iterators, which causes UBSAN to complain. This patch uses the same approach as in bcachefs's sort_iter and splits the iterator into a btree_iter with a flexible array member and a btree_iter_stack which embeds a btree_iter as well as a fixed-length data array. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bcache: corrige el abuso de matriz de longitud variable en btree_iter btree_iter se usa de dos maneras: ya sea asignado en la pila con un tamaño fijo MAX_BSETS, o desde un mempool con un tamaño dinámico basado en el conjunto de caché específico. Anteriormente, la estructura tenía una matriz de longitud fija de tamaño MAX_BSETS que estaba indexada fuera de los límites para los iteradores de tamaño dinámico, lo que provoca que UBSAN se queje. Este parche utiliza el mismo enfoque que en sort_iter de bcachefs y divide el iterador en un btree_iter con un miembro de matriz flexible y un btree_iter_stack que incorpora un btree_iter así como una matriz de datos de longitud fija. • https://git.kernel.org/stable/c/2c3d7b03b658dc8bfa6112b194b67b92a87e081b https://git.kernel.org/stable/c/5a1922adc5798b7ec894cd3f197afb6f9591b023 https://git.kernel.org/stable/c/934e1e4331859183a861f396d7dfaf33cb5afb02 https://git.kernel.org/stable/c/6479b9f41583b013041943c4602e1ad61cec8148 https://git.kernel.org/stable/c/0c31344e22dd8d6b1394c6e4c41d639015bdc671 https://git.kernel.org/stable/c/3a861560ccb35f2a4f0a4b8207fa7c2a35fc7f31 • CWE-770: Allocation of Resources Without Limits or Throttling •