Vulnerabilities
Vulnerable Software
Linux:  >> Linux Kernel  >> 5.15.113  Security Vulnerabilities
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: u_serial: Add null pointer check in gserial_suspend Consider a case where gserial_disconnect has already cleared gser->ioport. And if gserial_suspend gets called afterwards, it will lead to accessing of gser->ioport and thus causing null pointer dereference. Avoid this by adding a null pointer check. Added a static spinlock to prevent gser->ioport from becoming null after the newly added null pointer check.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: md/raid10: check slab-out-of-bounds in md_bitmap_get_counter If we write a large number to md/bitmap_set_bits, md_bitmap_checkpage() will return -EINVAL because 'page >= bitmap->pages', but the return value was not checked immediately in md_bitmap_get_counter() in order to set *blocks value and slab-out-of-bounds occurs. Move check of 'page >= bitmap->pages' to md_bitmap_get_counter() and return directly if true.
CVSS Score
7.1
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue under cocurrent smb2 tree disconnect There is UAF issue under cocurrent smb2 tree disconnect. This patch introduce TREE_CONN_EXPIRE flags for tcon to avoid cocurrent access.
CVSS Score
7.0
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: icmp6: Fix null-ptr-deref of ip6_null_entry->rt6i_idev in icmp6_dev(). With some IPv6 Ext Hdr (RPL, SRv6, etc.), we can send a packet that has the link-local address as src and dst IP and will be forwarded to an external IP in the IPv6 Ext Hdr. For example, the script below generates a packet whose src IP is the link-local address and dst is updated to 11::. # for f in $(find /proc/sys/net/ -name *seg6_enabled*); do echo 1 > $f; done # python3 >>> from socket import * >>> from scapy.all import * >>> >>> SRC_ADDR = DST_ADDR = "fe80::5054:ff:fe12:3456" >>> >>> pkt = IPv6(src=SRC_ADDR, dst=DST_ADDR) >>> pkt /= IPv6ExtHdrSegmentRouting(type=4, addresses=["11::", "22::"], segleft=1) >>> >>> sk = socket(AF_INET6, SOCK_RAW, IPPROTO_RAW) >>> sk.sendto(bytes(pkt), (DST_ADDR, 0)) For such a packet, we call ip6_route_input() to look up a route for the next destination in these three functions depending on the header type. * ipv6_rthdr_rcv() * ipv6_rpl_srh_rcv() * ipv6_srh_rcv() If no route is found, ip6_null_entry is set to skb, and the following dst_input(skb) calls ip6_pkt_drop(). Finally, in icmp6_dev(), we dereference skb_rt6_info(skb)->rt6i_idev->dev as the input device is the loopback interface. Then, we have to check if skb_rt6_info(skb)->rt6i_idev is NULL or not to avoid NULL pointer deref for ip6_null_entry. BUG: kernel NULL pointer dereference, address: 0000000000000000 PF: supervisor read access in kernel mode PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 157 Comm: python3 Not tainted 6.4.0-11996-gb121d614371c #35 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 RIP: 0010:icmp6_send (net/ipv6/icmp.c:436 net/ipv6/icmp.c:503) Code: fe ff ff 48 c7 40 30 c0 86 5d 83 e8 c6 44 1c 00 e9 c8 fc ff ff 49 8b 46 58 48 83 e0 fe 0f 84 4a fb ff ff 48 8b 80 d0 00 00 00 <48> 8b 00 44 8b 88 e0 00 00 00 e9 34 fb ff ff 4d 85 ed 0f 85 69 01 RSP: 0018:ffffc90000003c70 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 00000000000000e0 RDX: 0000000000000021 RSI: 0000000000000000 RDI: ffff888006d72a18 RBP: ffffc90000003d80 R08: 0000000000000000 R09: 0000000000000001 R10: ffffc90000003d98 R11: 0000000000000040 R12: ffff888006d72a10 R13: 0000000000000000 R14: ffff8880057fb800 R15: ffffffff835d86c0 FS: 00007f9dc72ee740(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000057b2000 CR4: 00000000007506f0 PKRU: 55555554 Call Trace: <IRQ> ip6_pkt_drop (net/ipv6/route.c:4513) ipv6_rthdr_rcv (net/ipv6/exthdrs.c:640 net/ipv6/exthdrs.c:686) ip6_protocol_deliver_rcu (net/ipv6/ip6_input.c:437 (discriminator 5)) ip6_input_finish (./include/linux/rcupdate.h:781 net/ipv6/ip6_input.c:483) __netif_receive_skb_one_core (net/core/dev.c:5455) process_backlog (./include/linux/rcupdate.h:781 net/core/dev.c:5895) __napi_poll (net/core/dev.c:6460) net_rx_action (net/core/dev.c:6529 net/core/dev.c:6660) __do_softirq (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142 kernel/softirq.c:554) do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) </IRQ> <TASK> __local_bh_enable_ip (kernel/softirq.c:381) __dev_queue_xmit (net/core/dev.c:4231) ip6_finish_output2 (./include/net/neighbour.h:544 net/ipv6/ip6_output.c:135) rawv6_sendmsg (./include/net/dst.h:458 ./include/linux/netfilter.h:303 net/ipv6/raw.c:656 net/ipv6/raw.c:914) sock_sendmsg (net/socket.c:725 net/socket.c:748) __sys_sendto (net/socket.c:2134) __x64_sys_sendto (net/socket.c:2146 net/socket.c:2142 net/socket.c:2142) do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120) RIP: 0033:0x7f9dc751baea Code: d8 64 89 02 48 c7 c0 ff f ---truncated---
CVSS Score
5.5
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Handle pairing of E-switch via uplink un/load APIs In case user switch a device from switchdev mode to legacy mode, mlx5 first unpair the E-switch and afterwards unload the uplink vport. From the other hand, in case user remove or reload a device, mlx5 first unload the uplink vport and afterwards unpair the E-switch. The latter is causing a bug[1], hence, handle pairing of E-switch as part of uplink un/load APIs. [1] In case VF_LAG is used, every tc fdb flow is duplicated to the peer esw. However, the original esw keeps a pointer to this duplicated flow, not the peer esw. e.g.: if user create tc fdb flow over esw0, the flow is duplicated over esw1, in FW/HW, but in SW, esw0 keeps a pointer to the duplicated flow. During module unload while a peer tc fdb flow is still offloaded, in case the first device to be removed is the peer device (esw1 in the example above), the peer net-dev is destroyed, and so the mlx5e_priv is memset to 0. Afterwards, the peer device is trying to unpair himself from the original device (esw0 in the example above). Unpair API invoke the original device to clear peer flow from its eswitch (esw0), but the peer flow, which is stored over the original eswitch (esw0), is trying to use the peer mlx5e_priv, which is memset to 0 and result in bellow kernel-oops. [ 157.964081 ] BUG: unable to handle page fault for address: 000000000002ce60 [ 157.964662 ] #PF: supervisor read access in kernel mode [ 157.965123 ] #PF: error_code(0x0000) - not-present page [ 157.965582 ] PGD 0 P4D 0 [ 157.965866 ] Oops: 0000 [#1] SMP [ 157.967670 ] RIP: 0010:mlx5e_tc_del_fdb_flow+0x48/0x460 [mlx5_core] [ 157.976164 ] Call Trace: [ 157.976437 ] <TASK> [ 157.976690 ] __mlx5e_tc_del_fdb_peer_flow+0xe6/0x100 [mlx5_core] [ 157.977230 ] mlx5e_tc_clean_fdb_peer_flows+0x67/0x90 [mlx5_core] [ 157.977767 ] mlx5_esw_offloads_unpair+0x2d/0x1e0 [mlx5_core] [ 157.984653 ] mlx5_esw_offloads_devcom_event+0xbf/0x130 [mlx5_core] [ 157.985212 ] mlx5_devcom_send_event+0xa3/0xb0 [mlx5_core] [ 157.985714 ] esw_offloads_disable+0x5a/0x110 [mlx5_core] [ 157.986209 ] mlx5_eswitch_disable_locked+0x152/0x170 [mlx5_core] [ 157.986757 ] mlx5_eswitch_disable+0x51/0x80 [mlx5_core] [ 157.987248 ] mlx5_unload+0x2a/0xb0 [mlx5_core] [ 157.987678 ] mlx5_uninit_one+0x5f/0xd0 [mlx5_core] [ 157.988127 ] remove_one+0x64/0xe0 [mlx5_core] [ 157.988549 ] pci_device_remove+0x31/0xa0 [ 157.988933 ] device_release_driver_internal+0x18f/0x1f0 [ 157.989402 ] driver_detach+0x3f/0x80 [ 157.989754 ] bus_remove_driver+0x70/0xf0 [ 157.990129 ] pci_unregister_driver+0x34/0x90 [ 157.990537 ] mlx5_cleanup+0xc/0x1c [mlx5_core] [ 157.990972 ] __x64_sys_delete_module+0x15a/0x250 [ 157.991398 ] ? exit_to_user_mode_prepare+0xea/0x110 [ 157.991840 ] do_syscall_64+0x3d/0x90 [ 157.992198 ] entry_SYSCALL_64_after_hwframe+0x46/0xb0
CVSS Score
5.5
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock when aborting transaction during relocation with scrub Before relocating a block group we pause scrub, then do the relocation and then unpause scrub. The relocation process requires starting and committing a transaction, and if we have a failure in the critical section of the transaction commit path (transaction state >= TRANS_STATE_COMMIT_START), we will deadlock if there is a paused scrub. That results in stack traces like the following: [42.479] BTRFS info (device sdc): relocating block group 53876686848 flags metadata|raid6 [42.936] BTRFS warning (device sdc): Skipping commit of aborted transaction. [42.936] ------------[ cut here ]------------ [42.936] BTRFS: Transaction aborted (error -28) [42.936] WARNING: CPU: 11 PID: 346822 at fs/btrfs/transaction.c:1977 btrfs_commit_transaction+0xcc8/0xeb0 [btrfs] [42.936] Modules linked in: dm_flakey dm_mod loop btrfs (...) [42.936] CPU: 11 PID: 346822 Comm: btrfs Tainted: G W 6.3.0-rc2-btrfs-next-127+ #1 [42.936] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [42.936] RIP: 0010:btrfs_commit_transaction+0xcc8/0xeb0 [btrfs] [42.936] Code: ff ff 45 8b (...) [42.936] RSP: 0018:ffffb58649633b48 EFLAGS: 00010282 [42.936] RAX: 0000000000000000 RBX: ffff8be6ef4d5bd8 RCX: 0000000000000000 [42.936] RDX: 0000000000000002 RSI: ffffffffb35e7782 RDI: 00000000ffffffff [42.936] RBP: ffff8be6ef4d5c98 R08: 0000000000000000 R09: ffffb586496339e8 [42.936] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8be6d38c7c00 [42.936] R13: 00000000ffffffe4 R14: ffff8be6c268c000 R15: ffff8be6ef4d5cf0 [42.936] FS: 00007f381a82b340(0000) GS:ffff8beddfcc0000(0000) knlGS:0000000000000000 [42.936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [42.936] CR2: 00007f1e35fb7638 CR3: 0000000117680006 CR4: 0000000000370ee0 [42.936] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [42.936] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [42.936] Call Trace: [42.936] <TASK> [42.936] ? start_transaction+0xcb/0x610 [btrfs] [42.936] prepare_to_relocate+0x111/0x1a0 [btrfs] [42.936] relocate_block_group+0x57/0x5d0 [btrfs] [42.936] ? btrfs_wait_nocow_writers+0x25/0xb0 [btrfs] [42.936] btrfs_relocate_block_group+0x248/0x3c0 [btrfs] [42.936] ? __pfx_autoremove_wake_function+0x10/0x10 [42.936] btrfs_relocate_chunk+0x3b/0x150 [btrfs] [42.936] btrfs_balance+0x8ff/0x11d0 [btrfs] [42.936] ? __kmem_cache_alloc_node+0x14a/0x410 [42.936] btrfs_ioctl+0x2334/0x32c0 [btrfs] [42.937] ? mod_objcg_state+0xd2/0x360 [42.937] ? refill_obj_stock+0xb0/0x160 [42.937] ? seq_release+0x25/0x30 [42.937] ? __rseq_handle_notify_resume+0x3b5/0x4b0 [42.937] ? percpu_counter_add_batch+0x2e/0xa0 [42.937] ? __x64_sys_ioctl+0x88/0xc0 [42.937] __x64_sys_ioctl+0x88/0xc0 [42.937] do_syscall_64+0x38/0x90 [42.937] entry_SYSCALL_64_after_hwframe+0x72/0xdc [42.937] RIP: 0033:0x7f381a6ffe9b [42.937] Code: 00 48 89 44 24 (...) [42.937] RSP: 002b:00007ffd45ecf060 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [42.937] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f381a6ffe9b [42.937] RDX: 00007ffd45ecf150 RSI: 00000000c4009420 RDI: 0000000000000003 [42.937] RBP: 0000000000000003 R08: 0000000000000013 R09: 0000000000000000 [42.937] R10: 00007f381a60c878 R11: 0000000000000246 R12: 00007ffd45ed0423 [42.937] R13: 00007ffd45ecf150 R14: 0000000000000000 R15: 00007ffd45ecf148 [42.937] </TASK> [42.937] ---[ end trace 0000000000000000 ]--- [42.937] BTRFS: error (device sdc: state A) in cleanup_transaction:1977: errno=-28 No space left [59.196] INFO: task btrfs:346772 blocked for more than 120 seconds. [59.196] Tainted: G W 6.3.0-rc2-btrfs-next-127+ #1 [59.196] "echo 0 > /proc/sys/kernel/hung_ ---truncated---
CVSS Score
5.5
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix BUG_ON condition in btrfs_cancel_balance Pausing and canceling balance can race to interrupt balance lead to BUG_ON panic in btrfs_cancel_balance. The BUG_ON condition in btrfs_cancel_balance does not take this race scenario into account. However, the race condition has no other side effects. We can fix that. Reproducing it with panic trace like this: kernel BUG at fs/btrfs/volumes.c:4618! RIP: 0010:btrfs_cancel_balance+0x5cf/0x6a0 Call Trace: <TASK> ? do_nanosleep+0x60/0x120 ? hrtimer_nanosleep+0xb7/0x1a0 ? sched_core_clone_cookie+0x70/0x70 btrfs_ioctl_balance_ctl+0x55/0x70 btrfs_ioctl+0xa46/0xd20 __x64_sys_ioctl+0x7d/0xa0 do_syscall_64+0x38/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Race scenario as follows: > mutex_unlock(&fs_info->balance_mutex); > -------------------- > .......issue pause and cancel req in another thread > -------------------- > ret = __btrfs_balance(fs_info); > > mutex_lock(&fs_info->balance_mutex); > if (ret == -ECANCELED && atomic_read(&fs_info->balance_pause_req)) { > btrfs_info(fs_info, "balance: paused"); > btrfs_exclop_balance(fs_info, BTRFS_EXCLOP_BALANCE_PAUSED); > }
CVSS Score
5.5
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: lwt: Fix return values of BPF xmit ops BPF encap ops can return different types of positive values, such like NET_RX_DROP, NET_XMIT_CN, NETDEV_TX_BUSY, and so on, from function skb_do_redirect and bpf_lwt_xmit_reroute. At the xmit hook, such return values would be treated implicitly as LWTUNNEL_XMIT_CONTINUE in ip(6)_finish_output2. When this happens, skbs that have been freed would continue to the neighbor subsystem, causing use-after-free bug and kernel crashes. To fix the incorrect behavior, skb_do_redirect return values can be simply discarded, the same as tc-egress behavior. On the other hand, bpf_lwt_xmit_reroute returns useful errors to local senders, e.g. PMTU information. Thus convert its return values to avoid the conflict with LWTUNNEL_XMIT_CONTINUE.
CVSS Score
7.8
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: core: fix some leaks in probe The dwc3_get_properties() function calls: dwc->usb_psy = power_supply_get_by_name(usb_psy_name); so there is some additional clean up required on these error paths.
CVSS Score
5.5
EPSS Score
0.0
Published
2025-09-17
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Enhance sanity check while generating attr_list ni_create_attr_list uses WARN_ON to catch error cases while generating attribute list, which only prints out stack trace and may not be enough. This repalces them with more proper error handling flow. [ 59.666332] BUG: kernel NULL pointer dereference, address: 000000000000000e [ 59.673268] #PF: supervisor read access in kernel mode [ 59.678354] #PF: error_code(0x0000) - not-present page [ 59.682831] PGD 8000000005ff1067 P4D 8000000005ff1067 PUD 7dee067 PMD 0 [ 59.688556] Oops: 0000 [#1] PREEMPT SMP KASAN PTI [ 59.692642] CPU: 0 PID: 198 Comm: poc Tainted: G B W 6.2.0-rc1+ #4 [ 59.698868] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 [ 59.708795] RIP: 0010:ni_create_attr_list+0x505/0x860 [ 59.713657] Code: 7e 10 e8 5e d0 d0 ff 45 0f b7 76 10 48 8d 7b 16 e8 00 d1 d0 ff 66 44 89 73 16 4d 8d 75 0e 4c 89 f7 e8 3f d0 d0 ff 4c 8d8 [ 59.731559] RSP: 0018:ffff88800a56f1e0 EFLAGS: 00010282 [ 59.735691] RAX: 0000000000000001 RBX: ffff88800b7b5088 RCX: ffffffffb83079fe [ 59.741792] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffffbb7f9fc0 [ 59.748423] RBP: ffff88800a56f3a8 R08: ffff88800b7b50a0 R09: fffffbfff76ff3f9 [ 59.754654] R10: ffffffffbb7f9fc7 R11: fffffbfff76ff3f8 R12: ffff88800b756180 [ 59.761552] R13: 0000000000000000 R14: 000000000000000e R15: 0000000000000050 [ 59.768323] FS: 00007feaa8c96440(0000) GS:ffff88806d400000(0000) knlGS:0000000000000000 [ 59.776027] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.781395] CR2: 00007f3a2e0b1000 CR3: 000000000a5bc000 CR4: 00000000000006f0 [ 59.787607] Call Trace: [ 59.790271] <TASK> [ 59.792488] ? __pfx_ni_create_attr_list+0x10/0x10 [ 59.797235] ? kernel_text_address+0xd3/0xe0 [ 59.800856] ? unwind_get_return_address+0x3e/0x60 [ 59.805101] ? __kasan_check_write+0x18/0x20 [ 59.809296] ? preempt_count_sub+0x1c/0xd0 [ 59.813421] ni_ins_attr_ext+0x52c/0x5c0 [ 59.817034] ? __pfx_ni_ins_attr_ext+0x10/0x10 [ 59.821926] ? __vfs_setxattr+0x121/0x170 [ 59.825718] ? __vfs_setxattr_noperm+0x97/0x300 [ 59.829562] ? __vfs_setxattr_locked+0x145/0x170 [ 59.833987] ? vfs_setxattr+0x137/0x2a0 [ 59.836732] ? do_setxattr+0xce/0x150 [ 59.839807] ? setxattr+0x126/0x140 [ 59.842353] ? path_setxattr+0x164/0x180 [ 59.845275] ? __x64_sys_setxattr+0x71/0x90 [ 59.848838] ? do_syscall_64+0x3f/0x90 [ 59.851898] ? entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.857046] ? stack_depot_save+0x17/0x20 [ 59.860299] ni_insert_attr+0x1ba/0x420 [ 59.863104] ? __pfx_ni_insert_attr+0x10/0x10 [ 59.867069] ? preempt_count_sub+0x1c/0xd0 [ 59.869897] ? _raw_spin_unlock_irqrestore+0x2b/0x50 [ 59.874088] ? __create_object+0x3ae/0x5d0 [ 59.877865] ni_insert_resident+0xc4/0x1c0 [ 59.881430] ? __pfx_ni_insert_resident+0x10/0x10 [ 59.886355] ? kasan_save_alloc_info+0x1f/0x30 [ 59.891117] ? __kasan_kmalloc+0x8b/0xa0 [ 59.894383] ntfs_set_ea+0x90d/0xbf0 [ 59.897703] ? __pfx_ntfs_set_ea+0x10/0x10 [ 59.901011] ? kernel_text_address+0xd3/0xe0 [ 59.905308] ? __kernel_text_address+0x16/0x50 [ 59.909811] ? unwind_get_return_address+0x3e/0x60 [ 59.914898] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 59.920250] ? arch_stack_walk+0xa2/0x100 [ 59.924560] ? filter_irq_stacks+0x27/0x80 [ 59.928722] ntfs_setxattr+0x405/0x440 [ 59.932512] ? __pfx_ntfs_setxattr+0x10/0x10 [ 59.936634] ? kvmalloc_node+0x2d/0x120 [ 59.940378] ? kasan_save_stack+0x41/0x60 [ 59.943870] ? kasan_save_stack+0x2a/0x60 [ 59.947719] ? kasan_set_track+0x29/0x40 [ 59.951417] ? kasan_save_alloc_info+0x1f/0x30 [ 59.955733] ? __kasan_kmalloc+0x8b/0xa0 [ 59.959598] ? __kmalloc_node+0x68/0x150 [ 59.963163] ? kvmalloc_node+0x2d/0x120 [ 59.966490] ? vmemdup_user+0x2b/0xa0 ---truncated---
CVSS Score
5.5
EPSS Score
0.0
Published
2025-09-16


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