CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47376 – bpf: Add oversize check before call kvcalloc()
https://notcve.org/view.php?id=CVE-2021-47376
In the Linux kernel, the following vulnerability has been resolved: bpf: Add oversize check before call kvcalloc() Commit 7661809d493b ("mm: don't allow oversized kvmalloc() calls") add the oversize check. When the allocation is larger than what kmalloc() supports, the following warning triggered: WARNING: CPU: 0 PID: 8408 at mm/util.c:597 kvmalloc_node+0x108/0x110 mm/util.c:597 Modules linked in: CPU: 0 PID: 8408 Comm: syz-executor221 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvmalloc_node+0x108/0x110 mm/util.c:597 Call Trace: kvmalloc include/linux/mm.h:806 [inline] kvmalloc_array include/linux/mm.h:824 [inline] kvcalloc include/linux/mm.h:829 [inline] check_btf_line kernel/bpf/verifier.c:9925 [inline] check_btf_info kernel/bpf/verifier.c:10049 [inline] bpf_check+0xd634/0x150d0 kernel/bpf/verifier.c:13759 bpf_prog_load kernel/bpf/syscall.c:2301 [inline] __sys_bpf+0x11181/0x126e0 kernel/bpf/syscall.c:4587 __do_sys_bpf kernel/bpf/syscall.c:4691 [inline] __se_sys_bpf kernel/bpf/syscall.c:4689 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4689 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+0x44/0xae En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: Agregar verificación de tamaño excesivo antes de llamar a kvcalloc() Confirmación 7661809d493b ("mm: no permitir llamadas a kvmalloc() de gran tamaño") agregar la verificación de tamaño excesivo. Cuando la asignación es mayor que lo que admite kmalloc(), se activa la siguiente advertencia: ADVERTENCIA: CPU: 0 PID: 8408 en mm/util.c:597 kvmalloc_node+0x108/0x110 mm/util.c:597 Módulos vinculados en: CPU : 0 PID: 8408 Comm: syz-executor221 No contaminado 5.14.0-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvmalloc_node+0x108/0x110 mm/util .c:597 Seguimiento de llamadas: kvmalloc include/linux/mm.h:806 [en línea] kvmalloc_array include/linux/mm.h:824 [en línea] kvcalloc include/linux/mm.h:829 [en línea] check_btf_line kernel/bpf /verifier.c:9925 [en línea] check_btf_info kernel/bpf/verifier.c:10049 [en línea] bpf_check+0xd634/0x150d0 kernel/bpf/verifier.c:13759 bpf_prog_load kernel/bpf/syscall.c:2301 [en línea] __sys_bpf +0x11181/0x126e0 kernel/bpf/syscall.c:4587 __do_sys_bpf kernel/bpf/syscall.c:4691 [en línea] __se_sys_bpf kernel/bpf/syscall.c:4689 [en línea] __x64_sys_bpf+0x78/0x90 pf/syscall.c:4689 do_syscall_x64 arch/x86/entry/common.c:50 [en línea] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x44/0xae • https://git.kernel.org/stable/c/93937596e0652d50973f9dc944fea1694ac8cdfd https://git.kernel.org/stable/c/6345a0bee80139ea00a341c4202ebfd1534b5eb0 https://git.kernel.org/stable/c/b5fe7cdfee5901ce5513c30e554d51536e003bde https://git.kernel.org/stable/c/0e6491b559704da720f6da09dd0a52c4df44c514 •
CVSS: 6.2EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47375 – blktrace: Fix uaf in blk_trace access after removing by sysfs
https://notcve.org/view.php?id=CVE-2021-47375
In the Linux kernel, the following vulnerability has been resolved: blktrace: Fix uaf in blk_trace access after removing by sysfs There is an use-after-free problem triggered by following process: P1(sda) P2(sdb) echo 0 > /sys/block/sdb/trace/enable blk_trace_remove_queue synchronize_rcu blk_trace_free relay_close rcu_read_lock __blk_add_trace trace_note_tsk (Iterate running_trace_list) relay_close_buf relay_destroy_buf kfree(buf) trace_note(sdb's bt) relay_reserve buf->offset <- nullptr deference (use-after-free) !!!... En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: blktrace: corrige uaf en el acceso a blk_trace después de eliminarlo mediante sysfs. • https://git.kernel.org/stable/c/c71a896154119f4ca9e89d6078f5f63ad60ef199 https://git.kernel.org/stable/c/488da313edf3abea7f7733efe011c96b23740ab5 https://git.kernel.org/stable/c/dacfd5e4d1142bfb3809aab3634a375f6f373269 https://git.kernel.org/stable/c/d56171d9360c0170c5c5f8f7e2362a2e999eca40 https://git.kernel.org/stable/c/677e362ba807f3aafe6f405c07e0b37244da5222 https://git.kernel.org/stable/c/ebb8d26d93c3ec3c7576c52a8373a2309423c069 https://git.kernel.org/stable/c/3815fe7371d2411ce164281cef40d9fc7b323dee https://git.kernel.org/stable/c/a5f8e86192612d0183047448d8bbe7918 • CWE-416: Use After Free •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47374 – dma-debug: prevent an error message from causing runtime problems
https://notcve.org/view.php?id=CVE-2021-47374
In the Linux kernel, the following vulnerability has been resolved: dma-debug: prevent an error message from causing runtime problems For some drivers, that use the DMA API. ... En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: dma-debug: evita que un mensaje de error cause problemas de tiempo de ejecución Para algunos controladores, que utilizan la API DMA. • https://git.kernel.org/stable/c/de4afec2d2946c92c62a15ab341c70b287289e6a https://git.kernel.org/stable/c/510e1a724ab1bf38150be2c1acabb303f98d0047 •
CVSS: 4.4EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47373 – irqchip/gic-v3-its: Fix potential VPE leak on error
https://notcve.org/view.php?id=CVE-2021-47373
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3-its: Fix potential VPE leak on error In its_vpe_irq_domain_alloc, when its_vpe_init() returns an error, there is an off-by-one in the number of VPEs to be freed. Fix it by simply passing the number of VPEs allocated, which is the index of the loop iterating over the VPEs. [maz: fixed commit message] En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: irqchip/gic-v3-its: soluciona una posible fuga de VPE en caso de error. • https://git.kernel.org/stable/c/7d75bbb4bc1ad90386776459d37e4ddfe605671e https://git.kernel.org/stable/c/7d39992d45acd6f2d6b2f62389c55b61fb3d486b https://git.kernel.org/stable/c/5701e8bff314c155e7afdc467b1e0389d86853d0 https://git.kernel.org/stable/c/42d3711c23781045e7a5cd28536c774b9a66d20b https://git.kernel.org/stable/c/568662e37f927e3dc3e475f3ff7cf4ab7719c5e7 https://git.kernel.org/stable/c/e0c1c2e5da19685a20557a50f10c6aa4fa26aa84 https://git.kernel.org/stable/c/280bef512933b2dda01d681d8cbe499b98fc5bdd https://access.redhat.com/security/cve/CVE-2021-47373 • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak') •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47372 – net: macb: fix use after free on rmmod
https://notcve.org/view.php?id=CVE-2021-47372
In the Linux kernel, the following vulnerability has been resolved: net: macb: fix use after free on rmmod plat_dev->dev->platform_data is released by platform_device_unregister(), use of pclk and hclk is a use-after-free. Since device unregister won't need a clk device we adjust the function call sequence to fix this issue. [ 31.261225] BUG: KASAN: use-after-free in macb_remove+0x77/0xc6 [macb_pci] [ 31.275563] Freed by task 306: [ 30.276782] platform_device_release+0x25/0x80 En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: macb: corrige el use after free en rmmod plat_dev->dev->platform_data es publicado por platform_device_unregister(), el uso de pclk y hclk es un use after free. • https://git.kernel.org/stable/c/a7d521cc726f30b8e679a6f36d04b18a8ab3c536 https://git.kernel.org/stable/c/46670fb832ee80943715df618632ca13c2e96f2b https://git.kernel.org/stable/c/1da750d1e2140ef43d64d17f301ff6f41b45541e https://git.kernel.org/stable/c/7721221e87d25c9840d9ca6b986dbdc410d5ce2b https://git.kernel.org/stable/c/4ad6f2d23b0f6ac0d3e5f3102a4256d1c86c90f5 https://git.kernel.org/stable/c/d82d5303c4c539db86588ffb5dc5b26c3f1513e8 •