CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47288 – media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()
https://notcve.org/view.php?id=CVE-2021-47288
In the Linux kernel, the following vulnerability has been resolved: media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf() Fix an 11-year old bug in ngene_command_config_free_buf() while addressing the following warnings caught with -Warray-bounds: arch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds] arch/x86/include/asm/string_32.h:182:25: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds] The problem is that the original code is trying to copy 6 bytes of data into a one-byte size member _config_ of the wrong structue FW_CONFIGURE_BUFFERS, in a single call to memcpy(). This causes a legitimate compiler warning because memcpy() overruns the length of &com.cmd.ConfigureBuffers.config. It seems that the right structure is FW_CONFIGURE_FREE_BUFFERS, instead, because it contains 6 more members apart from the header _hdr_. Also, the name of the function ngene_command_config_free_buf() suggests that the actual intention is to ConfigureFreeBuffers, instead of ConfigureBuffers (which takes place in the function ngene_command_config_buf(), above). Fix this by enclosing those 6 members of struct FW_CONFIGURE_FREE_BUFFERS into new struct config, and use &com.cmd.ConfigureFreeBuffers.config as the destination address, instead of &com.cmd.ConfigureBuffers.config, when calling memcpy(). This also helps with the ongoing efforts to globally enable -Warray-bounds and get us closer to being able to tighten the FORTIFY_SOURCE routines on memcpy(). En el kernel de Linux, se resolvió la siguiente vulnerabilidad: medios: ngene: corrige un error fuera de los límites en ngene_command_config_free_buf(). • https://git.kernel.org/stable/c/dae52d009fc950b5c209260d50fcc000f5becd3c https://git.kernel.org/stable/c/4487b968e5eacd02c493303dc2b61150bb7fe4b2 https://git.kernel.org/stable/c/c6ddeb63dd543b5474b0217c4e47538b7ffd7686 https://git.kernel.org/stable/c/e818f2ff648581a6c553ae2bebc5dcef9a8bb90c https://git.kernel.org/stable/c/ec731c6ef564ee6fc101fc5d73e3a3a953d09a00 https://git.kernel.org/stable/c/e617fa62f6cf859a7b042cdd6c73af905ff8fca3 https://git.kernel.org/stable/c/e991457afdcb5f4dbc5bc9d79eaf775be33e7092 https://git.kernel.org/stable/c/b9a178f189bb6d75293573e181928735f •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2021-47287 – driver core: auxiliary bus: Fix memory leak when driver_register() fail
https://notcve.org/view.php?id=CVE-2021-47287
In the Linux kernel, the following vulnerability has been resolved: driver core: auxiliary bus: Fix memory leak when driver_register() fail If driver_register() returns with error we need to free the memory allocated for auxdrv->driver.name before returning from __auxiliary_driver_register() En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: núcleo del controlador: bus auxiliar: corrige la pérdida de memoria cuando falla driver_register(). Si driver_register() regresa con error, necesitamos liberar la memoria asignada para auxdrv->driver.name antes de regresar de __auxiliary_driver_register() • https://git.kernel.org/stable/c/7de3697e9cbd4bd3d62bafa249d57990e1b8f294 https://git.kernel.org/stable/c/ce5b3de58fc21303722df46551f7eb9a91afb409 https://git.kernel.org/stable/c/4afa0c22eed33cfe0c590742387f0d16f32412f3 https://access.redhat.com/security/cve/CVE-2021-47287 https://bugzilla.redhat.com/show_bug.cgi?id=2282511 • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak') •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47286 – bus: mhi: core: Validate channel ID when processing command completions
https://notcve.org/view.php?id=CVE-2021-47286
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: core: Validate channel ID when processing command completions MHI reads the channel ID from the event ring element sent by the device which can be any value between 0 and 255. In order to prevent any out of bound accesses, add a check against the maximum number of channels supported by the controller and those channels not configured yet so as to skip processing of that event ring element. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bus: mhi: core: valida el ID del canal al procesar la finalización del comando MHI lee el ID del canal del elemento del anillo de eventos enviado por el dispositivo, que puede tener cualquier valor entre 0 y 255. Para evitar accesos fuera de los límites, agregue una verificación del número máximo de canales admitidos por el controlador y aquellos canales que aún no están configurados para omitir el procesamiento de ese elemento del anillo de eventos. • https://git.kernel.org/stable/c/1d3173a3bae7039b765a0956e3e4bf846dbaacb8 https://git.kernel.org/stable/c/3efec3b4b16fc7af25676a94230a8ab2a3bb867c https://git.kernel.org/stable/c/aed4f5b51aba41e2afd7cfda20a0571a6a67dfe9 https://git.kernel.org/stable/c/546362a9ef2ef40b57c6605f14e88ced507f8dd0 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-36009 – ax25: Fix netdev refcount issue
https://notcve.org/view.php?id=CVE-2024-36009
In the Linux kernel, the following vulnerability has been resolved: ax25: Fix netdev refcount issue The dev_tracker is added to ax25_cb in ax25_bind(). When the ax25 device is detaching, the dev_tracker of ax25_cb should be deallocated in ax25_kill_by_device() instead of the dev_tracker of ax25_dev. The log reported by ref_tracker is shown below: [ 80.884935] ref_tracker: reference already released. [ 80.885150] ref_tracker: allocated in: [ 80.885349] ax25_dev_device_up+0x105/0x540 [ 80.885730] ax25_device_event+0xa4/0x420 [ 80.885730] notifier_call_chain+0xc9/0x1e0 [ 80.885730] __dev_notify_flags+0x138/0x280 [ 80.885730] dev_change_flags+0xd7/0x180 [ 80.885730] dev_ifsioc+0x6a9/0xa30 [ 80.885730] dev_ioctl+0x4d8/0xd90 [ 80.885730] sock_do_ioctl+0x1c2/0x2d0 [ 80.885730] sock_ioctl+0x38b/0x4f0 [ 80.885730] __se_sys_ioctl+0xad/0xf0 [ 80.885730] do_syscall_64+0xc4/0x1b0 [ 80.885730] entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 80.885730] ref_tracker: freed in: [ 80.885730] ax25_device_event+0x272/0x420 [ 80.885730] notifier_call_chain+0xc9/0x1e0 [ 80.885730] dev_close_many+0x272/0x370 [ 80.885730] unregister_netdevice_many_notify+0x3b5/0x1180 [ 80.885730] unregister_netdev+0xcf/0x120 [ 80.885730] sixpack_close+0x11f/0x1b0 [ 80.885730] tty_ldisc_kill+0xcb/0x190 [ 80.885730] tty_ldisc_hangup+0x338/0x3d0 [ 80.885730] __tty_hangup+0x504/0x740 [ 80.885730] tty_release+0x46e/0xd80 [ 80.885730] __fput+0x37f/0x770 [ 80.885730] __x64_sys_close+0x7b/0xb0 [ 80.885730] do_syscall_64+0xc4/0x1b0 [ 80.885730] entry_SYSCALL_64_after_hwframe+0x67/0x6f [ 80.893739] ------------[ cut here ]------------ [ 80.894030] WARNING: CPU: 2 PID: 140 at lib/ref_tracker.c:255 ref_tracker_free+0x47b/0x6b0 [ 80.894297] Modules linked in: [ 80.894929] CPU: 2 PID: 140 Comm: ax25_conn_rel_6 Not tainted 6.9.0-rc4-g8cd26fd90c1a #11 [ 80.895190] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qem4 [ 80.895514] RIP: 0010:ref_tracker_free+0x47b/0x6b0 [ 80.895808] Code: 83 c5 18 4c 89 eb 48 c1 eb 03 8a 04 13 84 c0 0f 85 df 01 00 00 41 83 7d 00 00 75 4b 4c 89 ff 9 [ 80.896171] RSP: 0018:ffff888009edf8c0 EFLAGS: 00000286 [ 80.896339] RAX: 1ffff1100141ac00 RBX: 1ffff1100149463b RCX: dffffc0000000000 [ 80.896502] RDX: 0000000000000001 RSI: 0000000000000246 RDI: ffff88800a0d6518 [ 80.896925] RBP: ffff888009edf9b0 R08: ffff88806d3288d3 R09: 1ffff1100da6511a [ 80.897212] R10: dffffc0000000000 R11: ffffed100da6511b R12: ffff88800a4a31d4 [ 80.897859] R13: ffff88800a4a31d8 R14: dffffc0000000000 R15: ffff88800a0d6518 [ 80.898279] FS: 00007fd88b7fe700(0000) GS:ffff88806d300000(0000) knlGS:0000000000000000 [ 80.899436] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.900181] CR2: 00007fd88c001d48 CR3: 000000000993e000 CR4: 00000000000006f0 ... [ 80.935774] ref_tracker: sp%d@000000000bb9df3d has 1/1 users at [ 80.935774] ax25_bind+0x424/0x4e0 [ 80.935774] __sys_bind+0x1d9/0x270 [ 80.935774] __x64_sys_bind+0x75/0x80 [ 80.935774] do_syscall_64+0xc4/0x1b0 [ 80.935774] entry_SYSCALL_64_after_hwframe+0x67/0x6f Change ax25_dev->dev_tracker to the dev_tracker of ax25_cb in order to mitigate the bug. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ax25: soluciona el problema de recuento de netdev. El dev_tracker se agrega a ax25_cb en ax25_bind(). • https://git.kernel.org/stable/c/feef318c855a361a1eccd880f33e88c460eb63b4 https://git.kernel.org/stable/c/b8c07f33aa35dacf5444e7053ed9662d1869f536 https://git.kernel.org/stable/c/b1e0a6fc7f17500484c402ad1cd018c24dfc14b3 https://git.kernel.org/stable/c/7528d0f2210c3a1154186175516ed37aa970f2b1 https://git.kernel.org/stable/c/57cc15f5fd550316e4104eaf84b90fbc640fd7a5 https://git.kernel.org/stable/c/b982492ec3a115e0a136856a1b2dbe32f2d21a0e https://git.kernel.org/stable/c/0d14f104027e30720582448706c7d6b43065c851 https://git.kernel.org/stable/c/4fee8fa86a15d7790268eea458b1aec69 •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-36008 – ipv4: check for NULL idev in ip_route_use_hint()
https://notcve.org/view.php?id=CVE-2024-36008
In the Linux kernel, the following vulnerability has been resolved: ipv4: check for NULL idev in ip_route_use_hint() syzbot was able to trigger a NULL deref in fib_validate_source() in an old tree [1]. It appears the bug exists in latest trees. All calls to __in_dev_get_rcu() must be checked for a NULL result. [1] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425 Code: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 <42> 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf RSP: 0018:ffffc900015fee40 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0 RDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0 RBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000 R10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000 FS: 00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231 ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327 ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline] ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638 ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673 __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline] __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620 __netif_receive_skb_list net/core/dev.c:5672 [inline] netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764 netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816 xdp_recv_frames net/bpf/test_run.c:257 [inline] xdp_test_run_batch net/bpf/test_run.c:335 [inline] bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363 bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376 bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736 __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115 __do_sys_bpf kernel/bpf/syscall.c:5201 [inline] __se_sys_bpf kernel/bpf/syscall.c:5199 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199 En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ipv4: verifique NULL idev en ip_route_use_hint() syzbot pudo activar una deref NULL en fib_validate_source() en un árbol antiguo [1]. Parece que el error existe en los árboles más recientes. Todas las llamadas a __in_dev_get_rcu() deben verificarse para obtener un resultado NULL. [1] Fallo de protección general, probablemente para la dirección no canónica 0xdffffc000000000000: 0000 [#1] SMP Kasan Kasan: Null-Ptr-Deref en el rango [0x000000000000000000-0X000000000000000007] CPU: 2 pid: 3257 Comm: Syz-ECUTOR.3 NO NO tainted 5.10.0-syzkaller #0 Nombre del hardware: PC estándar QEMU (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 01/04/2014 RIP: 0010:fib_validate_source+0xbf /0x15a0 net/ipv4/fib_frontend.c:425 Código: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 <42> 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf RSP: 0018:ffffc900015fee40 EFLAGS: 00010246 RAX: 0000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0 RDX: 0000000000000000 RSI : 0000000004001eac RDI: ffff8880160c64c0 RBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000 R10: 0000000000000002 R11: 00f4f90c0 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000 FS: 00007f938acfe6c0(0000) GS:ffff888058c0 0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 00000000 DR2: 0000000000000000 DR3: 00000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Seguimiento de llamadas: ip_route_use_hint+0x410/0x9b0 net/ipv4/route. c:2231 ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327 ip_list_rcv_finish net/ipv4/ip_input.c:612 [en línea] ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638 /0x470 neto /ipv4/ip_input.c:673 __netif_receive_skb_list_ptype net/core/dev.c:5572 [en línea] __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620 __netif_receive_skb_list net/core/dev.c:5672 [en línea] ive_skb_list_internal+ 0x9f9/0xdc0 net/core/dev.c:5764 netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816 xdp_recv_frames net/bpf/test_run.c:257 [en línea] xdp_test_run_batch net/bpf/test_run.c:335 [ en línea] bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363 bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376 bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c: 3736 __sys_bpf+0x45c/0x710 núcleo /bpf/syscall.c:5115 __do_sys_bpf kernel/bpf/syscall.c:5201 [en línea] __se_sys_bpf kernel/bpf/syscall.c:5199 [en línea] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199 • https://git.kernel.org/stable/c/02b24941619fcce3d280311ac73b1e461552e9c8 https://git.kernel.org/stable/c/7da0f91681c4902bc5c210356fdd963b04d5d1d4 https://git.kernel.org/stable/c/03b5a9b2b526862b21bcc31976e393a6e63785d1 https://git.kernel.org/stable/c/7a25bfd12733a8f38f8ca47c581f876c3d481ac0 https://git.kernel.org/stable/c/8240c7308c941db4d9a0a91b54eca843c616a655 https://git.kernel.org/stable/c/c71ea3534ec0936fc57e6fb271c7cc6a2f68c295 https://git.kernel.org/stable/c/58a4c9b1e5a3e53c9148e80b90e1e43897ce77d1 https://lists.debian.org/debian-lts-announce/2024/06/ • CWE-476: NULL Pointer Dereference •