CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-35848 – eeprom: at24: fix memory corruption race condition
https://notcve.org/view.php?id=CVE-2024-35848
In the Linux kernel, the following vulnerability has been resolved: eeprom: at24: fix memory corruption race condition If the eeprom is not accessible, an nvmem device will be registered, the read will fail, and the device will be torn down. If another driver accesses the nvmem device after the teardown, it will reference invalid memory. Move the failure point before registering the nvmem device. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: eeprom: at24: corrige la condición de ejecución por corrupción de memoria. Si no se puede acceder a la eeprom, se registrará un dispositivo nvmem, la lectura fallará y el dispositivo se apagará. Si otro controlador accede al dispositivo nvmem después del desmontaje, hará referencia a una memoria no válida. • https://git.kernel.org/stable/c/b20eb4c1f0261eebe6e1b9221c0d6e4048837778 https://git.kernel.org/stable/c/c850f71fca09ea41800ed55905980063d17e01da https://git.kernel.org/stable/c/26d32bec4c6d255a03762f33c637bfa3718be15a https://git.kernel.org/stable/c/c43e5028f5a35331eb25017f5ff6cc21735005c6 https://git.kernel.org/stable/c/2af84c46b9b8f2d6c0f88d09ee5c849ae1734676 https://git.kernel.org/stable/c/6d8b56ec0c8f30d5657382f47344a32569f7a9bc https://git.kernel.org/stable/c/f42c97027fb75776e2e9358d16bf4a99aeb04cf2 https://lists.debian.org/debian-lts-announce/2024/06/ •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-35847 – irqchip/gic-v3-its: Prevent double free on error
https://notcve.org/view.php?id=CVE-2024-35847
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Prevent double free on error The error handling path in its_vpe_irq_domain_alloc() causes a double free when its_vpe_init() fails after successfully allocating at least one interrupt. This happens because its_vpe_irq_domain_free() frees the interrupts along with the area bitmap and the vprop_page and its_vpe_irq_domain_alloc() subsequently frees the area bitmap and the vprop_page again. Fix this by unconditionally invoking its_vpe_irq_domain_free() which handles all cases correctly and by removing the bitmap/vprop_page freeing from its_vpe_irq_domain_alloc(). [ tglx: Massaged change log ] En el kernel de Linux, se resolvió la siguiente vulnerabilidad: irqchip/gic-v3-its: Evitar el double free en caso de error. La ruta de manejo de errores en its_vpe_irq_domain_alloc() provoca un double free cuando its_vpe_init() falla después de asignar exitosamente al menos una interrupción. Esto sucede porque its_vpe_irq_domain_free() libera las interrupciones junto con el mapa de bits del área y la vprop_page y its_vpe_irq_domain_alloc() posteriormente libera nuevamente el mapa de bits del área y la vprop_page. Solucione este problema invocando incondicionalmente its_vpe_irq_domain_free() que maneja todos los casos correctamente y eliminando el mapa de bits/vprop_page que se libera de its_vpe_irq_domain_alloc(). • https://git.kernel.org/stable/c/7d75bbb4bc1ad90386776459d37e4ddfe605671e https://git.kernel.org/stable/c/f5417ff561b8ac9a7e53c747b8627a7ab58378ae https://git.kernel.org/stable/c/b72d2b1448b682844f995e660b77f2a1fabc1662 https://git.kernel.org/stable/c/aa44d21574751a7d6bca892eb8e0e9ac68372e52 https://git.kernel.org/stable/c/5dbdbe1133911ca7d8466bb86885adec32ad9438 https://git.kernel.org/stable/c/dd681710ab77c8beafe2e263064cb1bd0e2d6ca9 https://git.kernel.org/stable/c/03170e657f62c26834172742492a8cb8077ef792 https://git.kernel.org/stable/c/5b012f77abde89bf0be8a0547636184fe •
CVSS: 6.8EPSS: 0%CPEs: 2EXPL: 0CVE-2024-35843 – iommu/vt-d: Use device rbtree in iopf reporting path
https://notcve.org/view.php?id=CVE-2024-35843
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Use device rbtree in iopf reporting path The existing I/O page fault handler currently locates the PCI device by calling pci_get_domain_bus_and_slot(). This function searches the list of all PCI devices until the desired device is found. To improve lookup efficiency, replace it with device_rbtree_find() to search the device within the probed device rbtree. The I/O page fault is initiated by the device, which does not have any synchronization mechanism with the software to ensure that the device stays in the probed device tree. Theoretically, a device could be released by the IOMMU subsystem after device_rbtree_find() and before iopf_get_dev_fault_param(), which would cause a use-after-free problem. Add a mutex to synchronize the I/O page fault reporting path and the IOMMU release device path. This lock doesn't introduce any performance overhead, as the conflict between I/O page fault reporting and device releasing is very rare. • https://git.kernel.org/stable/c/3d39238991e745c5df85785604f037f35d9d1b15 https://git.kernel.org/stable/c/def054b01a867822254e1dda13d587f5c7a99e2a • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2024-35839 – netfilter: bridge: replace physindev with physinif in nf_bridge_info
https://notcve.org/view.php?id=CVE-2024-35839
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: replace physindev with physinif in nf_bridge_info An skb can be added to a neigh->arp_queue while waiting for an arp reply. Where original skb's skb->dev can be different to neigh's neigh->dev. For instance in case of bridging dnated skb from one veth to another, the skb would be added to a neigh->arp_queue of the bridge. As skb->dev can be reset back to nf_bridge->physindev and used, and as there is no explicit mechanism that prevents this physindev from been freed under us (for instance neigh_flush_dev doesn't cleanup skbs from different device's neigh queue) we can crash on e.g. this stack: arp_process neigh_update skb = __skb_dequeue(&neigh->arp_queue) neigh_resolve_output(..., skb) ... br_nf_dev_xmit br_nf_pre_routing_finish_bridge_slow skb->dev = nf_bridge->physindev br_handle_frame_finish Let's use plain ifindex instead of net_device link. To peek into the original net_device we will use dev_get_by_index_rcu(). Thus either we get device and are safe to use it or we don't get it and drop skb. • https://git.kernel.org/stable/c/c4e70a87d975d1f561a00abfe2d3cefa2a486c95 https://git.kernel.org/stable/c/7ae19ee81ca56b13c50a78de6c47d5b8fdc9d97b https://git.kernel.org/stable/c/9325e3188a9cf3f69fc6f32af59844bbc5b90547 https://git.kernel.org/stable/c/544add1f1cfb78c3dfa3e6edcf4668f6be5e730c https://git.kernel.org/stable/c/9874808878d9eed407e3977fd11fee49de1e1d86 https://access.redhat.com/security/cve/CVE-2024-35839 https://bugzilla.redhat.com/show_bug.cgi?id=2281284 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2023-52698 – calipso: fix memory leak in netlbl_calipso_add_pass()
https://notcve.org/view.php?id=CVE-2023-52698
In the Linux kernel, the following vulnerability has been resolved: calipso: fix memory leak in netlbl_calipso_add_pass() If IPv6 support is disabled at boot (ipv6.disable=1), the calipso_init() -> netlbl_calipso_ops_register() function isn't called, and the netlbl_calipso_ops_get() function always returns NULL. In this case, the netlbl_calipso_add_pass() function allocates memory for the doi_def variable but doesn't free it with the calipso_doi_free(). BUG: memory leak unreferenced object 0xffff888011d68180 (size 64): comm "syz-executor.1", pid 10746, jiffies 4295410986 (age 17.928s) hex dump (first 32 bytes): 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<...>] kmalloc include/linux/slab.h:552 [inline] [<...>] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [inline] [<...>] netlbl_calipso_add+0x22e/0x4f0 net/netlabel/netlabel_calipso.c:111 [<...>] genl_family_rcv_msg_doit+0x22f/0x330 net/netlink/genetlink.c:739 [<...>] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] [<...>] genl_rcv_msg+0x341/0x5a0 net/netlink/genetlink.c:800 [<...>] netlink_rcv_skb+0x14d/0x440 net/netlink/af_netlink.c:2515 [<...>] genl_rcv+0x29/0x40 net/netlink/genetlink.c:811 [<...>] netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] [<...>] netlink_unicast+0x54b/0x800 net/netlink/af_netlink.c:1339 [<...>] netlink_sendmsg+0x90a/0xdf0 net/netlink/af_netlink.c:1934 [<...>] sock_sendmsg_nosec net/socket.c:651 [inline] [<...>] sock_sendmsg+0x157/0x190 net/socket.c:671 [<...>] ____sys_sendmsg+0x712/0x870 net/socket.c:2342 [<...>] ___sys_sendmsg+0xf8/0x170 net/socket.c:2396 [<...>] __sys_sendmsg+0xea/0x1b0 net/socket.c:2429 [<...>] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46 [<...>] entry_SYSCALL_64_after_hwframe+0x61/0xc6 Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with Syzkaller [PM: merged via the LSM tree at Jakub Kicinski request] En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: calipso: corrige la pérdida de memoria en netlbl_calipso_add_pass() Si la compatibilidad con IPv6 está deshabilitada en el arranque (ipv6.disable=1), no se llama a la función calipso_init() -> netlbl_calipso_ops_register() y la función netlbl_calipso_ops_get() siempre devuelve NULL. En este caso, la función netlbl_calipso_add_pass() asigna memoria para la variable doi_def pero no la libera con calipso_doi_free(). ERROR: pérdida de memoria, objeto sin referencia 0xffff888011d68180 (tamaño 64): comunicación "syz-executor.1", pid 10746, jiffies 4295410986 (edad 17,928 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................. ... seguimiento: [<...>] kmalloc include/linux/slab.h:552 [en línea] [<...>] netlbl_calipso_add_pass net/netlabel/netlabel_calipso.c:76 [en línea] [<... • https://git.kernel.org/stable/c/cb72d38211eacda2dd90b09540542b6582da614e https://git.kernel.org/stable/c/9a8f811a146aa2a0230f8edb2e9f4b6609aab8da https://git.kernel.org/stable/c/36e19f84634aaa94f543fedc0a07588949638d53 https://git.kernel.org/stable/c/44a88650ba55e6a7f2ec485d2c2413ba7e216f01 https://git.kernel.org/stable/c/a4529a08d3704c17ea9c7277d180e46b99250ded https://git.kernel.org/stable/c/321b3a5592c8a9d6b654c7c64833ea67dbb33149 https://git.kernel.org/stable/c/408bbd1e1746fe33e51f4c81c2febd7d3841d031 https://git.kernel.org/stable/c/f14d36e6e97fe935a20e0ceb159c100f9 •