CVE-2021-47219 — scsi: scsi_debug: Fix out-of-bound read in resp_report_tgtpgs()

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

scsi: scsi_debug: Fix out-of-bound read in resp_report_tgtpgs()

The following issue was observed running syzkaller:

BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:377 [inline] BUG: KASAN: slab-out-of-bounds in sg_copy_buffer+0x150/0x1c0 lib/scatterlist.c:831 Read of size 2132 at addr ffff8880aea95dc8 by task syz-executor.0/9815

CPU: 0 PID: 9815 Comm: syz-executor.0 Not tainted 4.19.202-00874-gfc0fe04215a9 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xe4/0x14a lib/dump_stack.c:118 print_address_description+0x73/0x280 mm/kasan/report.c:253 kasan_report_error mm/kasan/report.c:352 [inline] kasan_report+0x272/0x370 mm/kasan/report.c:410 memcpy+0x1f/0x50 mm/kasan/kasan.c:302 memcpy include/linux/string.h:377 [inline] sg_copy_buffer+0x150/0x1c0 lib/scatterlist.c:831 fill_from_dev_buffer+0x14f/0x340 drivers/scsi/scsi_debug.c:1021 resp_report_tgtpgs+0x5aa/0x770 drivers/scsi/scsi_debug.c:1772 schedule_resp+0x464/0x12f0 drivers/scsi/scsi_debug.c:4429 scsi_debug_queuecommand+0x467/0x1390 drivers/scsi/scsi_debug.c:5835 scsi_dispatch_cmd+0x3fc/0x9b0 drivers/scsi/scsi_lib.c:1896 scsi_request_fn+0x1042/0x1810 drivers/scsi/scsi_lib.c:2034 __blk_run_queue_uncond block/blk-core.c:464 [inline] __blk_run_queue+0x1a4/0x380 block/blk-core.c:484 blk_execute_rq_nowait+0x1c2/0x2d0 block…

USN-7391-1 — linux, linux-hwe-5.4 vulnerabilities

Affected: Ubuntu:Pro:18.04:LTS: linux-hwe-5.4, Ubuntu:20.04:LTS: linux

Chenyuan Yang discovered that the CEC driver driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-23848)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - PowerPC architecture; - S390 architecture; - SuperH RISC architecture; - User-Mode Linux (UML); - x86 architecture; - Cryptographic API; - Virtio block driver; - Data acquisition framework and drivers; - Hardware crypto device drivers; - DMA engine subsystem; - EDAC drivers; - ARM SCPI message protocol; - GPIO subsystem; - GPU drivers; - HID subsystem; - Microsoft Hyper-V drivers; - I3C subsystem; - IIO ADC drivers; - IIO subsystem; - InfiniBand drivers; - LED subsystem; - Multiple devices driver; - Media drivers; - Multifunction device drivers; - MMC subsystem; - MTD block device drivers; - Network drivers; - Mellanox network drivers; - NVME drivers; - PCI subsystem; - Pin controllers subsystem; - x86 platform drivers; - Real Time Clock drivers; - SCSI subsystem; - SuperH / SH-Mobile drivers; - QCOM SoC drivers; - SPI subsystem; - USB Gadget drivers; - USB Serial drivers; - USB Type-C Port Controller Manager driver; - VFIO drivers; - Framebuffer layer; - Xen hypervisor dr…

Most recent entries from all

CVE-2021-47219 — scsi: scsi_debug: Fix out-of-bound read in resp_report_tgtpgs()

USN-7391-1 — linux, linux-hwe-5.4 vulnerabilities