CVSS: 4.1EPSS: 0%CPEs: 5EXPL: 0CVE-2024-38543 – lib/test_hmm.c: handle src_pfns and dst_pfns allocation failure
https://notcve.org/view.php?id=CVE-2024-38543
In the Linux kernel, the following vulnerability has been resolved: lib/test_hmm.c: handle src_pfns and dst_pfns allocation failure The kcalloc() in dmirror_device_evict_chunk() will return null if the physical memory has run out. As a result, if src_pfns or dst_pfns is dereferenced, the null pointer dereference bug will happen. Moreover, the device is going away. If the kcalloc() fails, the pages mapping a chunk could not be evicted. So add a __GFP_NOFAIL flag in kcalloc(). Finally, as there is no need to have physically contiguous memory, Switch kcalloc() to kvcalloc() in order to avoid failing allocations. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: lib/test_hmm.c: maneja el error de asignación de src_pfns y dst_pfns El kcalloc() en dmirror_device_evict_chunk() devolverá nulo si la memoria física se ha agotado. • https://git.kernel.org/stable/c/b2ef9f5a5cb37643ca5def3516c546457074b882 https://git.kernel.org/stable/c/1a21fdeea502658e315bd939409b755974f4fb64 https://git.kernel.org/stable/c/65e528a69cb3ed4a286c45b4afba57461c8b5b33 https://git.kernel.org/stable/c/ce47e8ead9a72834cc68431d53f8092ce69bebb7 https://git.kernel.org/stable/c/3b20d18f475bd17309db640dbe7d7c7ebb5bc2bc https://git.kernel.org/stable/c/c2af060d1c18beaec56351cf9c9bcbbc5af341a3 https://access.redhat.com/security/cve/CVE-2024-38543 https://bugzilla.redhat.com/show_bug.cgi?id=2293456 • CWE-476: NULL Pointer Dereference •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-38542 – RDMA/mana_ib: boundary check before installing cq callbacks
https://notcve.org/view.php?id=CVE-2024-38542
In the Linux kernel, the following vulnerability has been resolved: RDMA/mana_ib: boundary check before installing cq callbacks Add a boundary check inside mana_ib_install_cq_cb to prevent index overflow. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: RDMA/mana_ib: verificación de los límites antes de instalar devoluciones de llamadas de cq Agregue una verificación de los límites dentro de mana_ib_install_cq_cb para evitar el desbordamiento del índice. • https://git.kernel.org/stable/c/cf9cc859d6ff37ce52c09dfbb169b9ee25595a3f https://git.kernel.org/stable/c/2a31c5a7e0d87959a03e846523013c75f4395a91 https://git.kernel.org/stable/c/f12afddfb142587d786df9e3cc4862190d3e2ec8 https://git.kernel.org/stable/c/168f6fbde0eabd71d1f4133df7d001a950b96977 https://git.kernel.org/stable/c/f79edef79b6a2161f4124112f9b0c46891bb0b74 •
CVSS: 9.8EPSS: 0%CPEs: 4EXPL: 0CVE-2024-38541 – of: module: add buffer overflow check in of_modalias()
https://notcve.org/view.php?id=CVE-2024-38541
In the Linux kernel, the following vulnerability has been resolved: of: module: add buffer overflow check in of_modalias() In of_modalias(), if the buffer happens to be too small even for the 1st snprintf() call, the len parameter will become negative and str parameter (if not NULL initially) will point beyond the buffer's end. Add the buffer overflow check after the 1st snprintf() call and fix such check after the strlen() call (accounting for the terminating NUL char). En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: of: módulo: agregar control de desbordamiento del búfer of_modalias() En of_modalias(), si el búfer es demasiado pequeño incluso para la primera llamada a snprintf(), el parámetro len se vuelve negativo y el parámetro str (si no es NULL inicialmente) apuntará más allá del final del búfer. Agregue la verificación de desbordamiento del búfer después de la primera llamada a snprintf() y corrija dicha verificación después de la llamada strlen() (teniendo en cuenta el carácter NUL de terminación). A buffer overflow flaw was found in of_modalias() in the Linux kernel, occurring after the first snprintf() call. • https://git.kernel.org/stable/c/bc575064d688c8933a6ca51429bea9bc63628d3b https://git.kernel.org/stable/c/0b0d5701a8bf02f8fee037e81aacf6746558bfd6 https://git.kernel.org/stable/c/ee332023adfd5882808f2dabf037b32d6ce36f9e https://git.kernel.org/stable/c/e45b69360a63165377b30db4a1dfddd89ca18e9a https://git.kernel.org/stable/c/cf7385cb26ac4f0ee6c7385960525ad534323252 https://access.redhat.com/security/cve/CVE-2024-38541 https://bugzilla.redhat.com/show_bug.cgi?id=2293458 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-121: Stack-based Buffer Overflow •
CVSS: 4.4EPSS: 0%CPEs: 4EXPL: 0CVE-2024-38540 – bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq
https://notcve.org/view.php?id=CVE-2024-38540
In the Linux kernel, the following vulnerability has been resolved: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq Undefined behavior is triggered when bnxt_qplib_alloc_init_hwq is called with hwq_attr->aux_depth != 0 and hwq_attr->aux_stride == 0. In that case, "roundup_pow_of_two(hwq_attr->aux_stride)" gets called. roundup_pow_of_two is documented as undefined for 0. Fix it in the one caller that had this combination. The undefined behavior was detected by UBSAN: UBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13 shift exponent 64 is too large for 64-bit type 'long unsigned int' CPU: 24 PID: 1075 Comm: (udev-worker) Not tainted 6.9.0-rc6+ #4 Hardware name: Abacus electric, s.r.o. - servis@abacus.cz Super Server/H12SSW-iN, BIOS 2.7 10/25/2023 Call Trace: <TASK> dump_stack_lvl+0x5d/0x80 ubsan_epilogue+0x5/0x30 __ubsan_handle_shift_out_of_bounds.cold+0x61/0xec __roundup_pow_of_two+0x25/0x35 [bnxt_re] bnxt_qplib_alloc_init_hwq+0xa1/0x470 [bnxt_re] bnxt_qplib_create_qp+0x19e/0x840 [bnxt_re] bnxt_re_create_qp+0x9b1/0xcd0 [bnxt_re] ? srso_alias_return_thunk+0x5/0xfbef5 ? srso_alias_return_thunk+0x5/0xfbef5 ? • https://git.kernel.org/stable/c/0c4dcd602817502bb3dced7a834a13ef717d65a4 https://git.kernel.org/stable/c/a658f011d89dd20cf2c7cb4760ffd79201700b98 https://git.kernel.org/stable/c/627493443f3a8458cb55cdae1da254a7001123bc https://git.kernel.org/stable/c/8b799c00cea6fcfe5b501bbaeb228c8821acb753 https://git.kernel.org/stable/c/78cfd17142ef70599d6409cbd709d94b3da58659 https://access.redhat.com/security/cve/CVE-2024-38540 https://bugzilla.redhat.com/show_bug.cgi?id=2293459 • CWE-125: Out-of-bounds Read •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-38539 – RDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw
https://notcve.org/view.php?id=CVE-2024-38539
In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw When running blktests nvme/rdma, the following kmemleak issue will appear. kmemleak: Kernel memory leak detector initialized (mempool available:36041) kmemleak: Automatic memory scanning thread started kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 8 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 17 new suspected memory leaks (see /sys/kernel/debug/kmemleak) kmemleak: 4 new suspected memory leaks (see /sys/kernel/debug/kmemleak) unreferenced object 0xffff88855da53400 (size 192): comm "rdma", pid 10630, jiffies 4296575922 hex dump (first 32 bytes): 37 00 00 00 00 00 00 00 c0 ff ff ff 1f 00 00 00 7............... 10 34 a5 5d 85 88 ff ff 10 34 a5 5d 85 88 ff ff .4.].....4.].... backtrace (crc 47f66721): [<ffffffff911251bd>] kmalloc_trace+0x30d/0x3b0 [<ffffffffc2640ff7>] alloc_gid_entry+0x47/0x380 [ib_core] [<ffffffffc2642206>] add_modify_gid+0x166/0x930 [ib_core] [<ffffffffc2643468>] ib_cache_update.part.0+0x6d8/0x910 [ib_core] [<ffffffffc2644e1a>] ib_cache_setup_one+0x24a/0x350 [ib_core] [<ffffffffc263949e>] ib_register_device+0x9e/0x3a0 [ib_core] [<ffffffffc2a3d389>] 0xffffffffc2a3d389 [<ffffffffc2688cd8>] nldev_newlink+0x2b8/0x520 [ib_core] [<ffffffffc2645fe3>] rdma_nl_rcv_msg+0x2c3/0x520 [ib_core] [<ffffffffc264648c>] rdma_nl_rcv_skb.constprop.0.isra.0+0x23c/0x3a0 [ib_core] [<ffffffff9270e7b5>] netlink_unicast+0x445/0x710 [<ffffffff9270f1f1>] netlink_sendmsg+0x761/0xc40 [<ffffffff9249db29>] __sys_sendto+0x3a9/0x420 [<ffffffff9249dc8c>] __x64_sys_sendto+0xdc/0x1b0 [<ffffffff92db0ad3>] do_syscall_64+0x93/0x180 [<ffffffff92e00126>] entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause: rdma_put_gid_attr is not called when sgid_attr is set to ERR_PTR(-ENODEV). En el kernel de Linux, se resolvió la siguiente vulnerabilidad: RDMA/cma: corrija kmemleak en rdma_core observado durante el uso de blktests nvme/rdma siw Al ejecutar blktests nvme/rdma, aparecerá el siguiente problema de kmemleak. kmemleak: detector de pérdida de memoria del kernel inicializado (mempool disponible: 36041) kmemleak: hilo de escaneo automático de memoria iniciado kmemleak: 2 nuevas pérdidas de memoria sospechosas (ver /sys/kernel/debug/kmemleak) kmemleak: 8 nuevas pérdidas de memoria sospechosas (ver /sys/ kernel/debug/kmemleak) kmemleak: 17 nuevas pérdidas de memoria sospechosas (ver /sys/kernel/debug/kmemleak) kmemleak: 4 nuevas pérdidas de memoria sospechosas (ver /sys/kernel/debug/kmemleak) objeto sin referencia 0xffff88855da53400 (tamaño 192): comm "rdma", pid 10630, sjiffies 4296575922 volcado hexadecimal (primeros 32 bytes): 37 00 00 00 00 00 00 00 c0 ff ff ff 1f 00 00 00 7................. 10 34 a5 5d 85 88 ff ff 10 34 a5 5d 85 88 ff ff .4.].....4.].... backtrace (crc 47f66721): [] kmalloc_trace+0x30d/0x3b0 [< ffffffffc2640ff7>] alloc_gid_entry+0x47/0x380 [ib_core] [] add_modify_gid+0x166/0x930 [ib_core] [] ib_cache_update.part.0+0x6d8/0x910 [ib_core] [] ib_cache_setup_one+0x24a/ 0x350 [ib_core] [] ib_register_device+0x9e/0x3a0 [ib_core] [] 0xffffffffc2a3d389 [] nldev_newlink+0x2b8/0x520 [ib_core] ffffffffc2645fe3>] rdma_nl_rcv_msg+0x2c3/0x520 [ib_core] [ ] rdma_nl_rcv_skb.constprop.0.isra.0+0x23c/0x3a0 [ib_core] [] netlink_unicast+0x445/0x710 [] 0 [] __sys_sendto+0x3a9/0x420 [] __x64_sys_sendto+0xdc/0x1b0 [] do_syscall_64+0x93/0x180 [] Entry_SYSCALL_64_after_hwframe+0x71/0x79 La causa raíz: _gid_attr no se llama cuando sgid_attr está configurado en ERR_PTR(-ENODEV). • https://git.kernel.org/stable/c/f8ef1be816bf9a0c406c696368c2264a9597a994 https://git.kernel.org/stable/c/3eb127dc408bf7959a4920d04d16ce10e863686a https://git.kernel.org/stable/c/6564fc1818404254d1c9f7d75b403b4941516d26 https://git.kernel.org/stable/c/b3a7fb93afd888793ef226e9665fbda98a95c48e https://git.kernel.org/stable/c/9c0731832d3b7420cbadba6a7f334363bc8dfb15 •