CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-44998 – atm: idt77252: prevent use after free in dequeue_rx()
https://notcve.org/view.php?id=CVE-2024-44998
In the Linux kernel, the following vulnerability has been resolved: atm: idt77252: prevent use after free in dequeue_rx() We can't dereference "skb" after calling vcc->push() because the skb is released. • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 https://git.kernel.org/stable/c/628ea82190a678a56d2ec38cda3addf3b3a6248d https://git.kernel.org/stable/c/09e086a5f72ea27c758b3f3b419a69000c32adc1 https://git.kernel.org/stable/c/1cece837e387c039225f19028df255df87a97c0d https://git.kernel.org/stable/c/24cf390a5426aac9255205e9533cdd7b4235d518 https://git.kernel.org/stable/c/379a6a326514a3e2f71b674091dfb0e0e7522b55 https://git.kernel.org/stable/c/ef23c18ab88e33ce000d06a5c6aad0620f219bfd https://git.kernel.org/stable/c/91b4850e7165a4b7180ef1e227733bcb4 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-44997 – net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()
https://notcve.org/view.php?id=CVE-2024-44997
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb() When there are multiple ap interfaces on one band and with WED on, turning the interface down will cause a kernel panic on MT798X. Previously, cb_priv was freed in mtk_wed_setup_tc_block() without marking NULL,and mtk_wed_setup_tc_block_cb() didn't check the value, too. Assign NULL after free cb_priv in mtk_wed_setup_tc_block() and check NULL in mtk_wed_setup_tc_block_cb(). ---------- Unable to handle kernel paging request at virtual address 0072460bca32b4f5 Call trace: mtk_wed_setup_tc_block_cb+0x4/0x38 0xffffffc0794084bc tcf_block_playback_offloads+0x70/0x1e8 tcf_block_unbind+0x6c/0xc8 ... --------- • https://git.kernel.org/stable/c/799684448e3e1f57257a6155541e53510488f67b https://git.kernel.org/stable/c/326a89321f9d5fe399fe6f9ff7c0fc766582a6a0 https://git.kernel.org/stable/c/b453a4bbda03aa8741279c360ac82d1c3ac33548 https://git.kernel.org/stable/c/db1b4bedb9b97c6d34b03d03815147c04fffe8b4 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-44996 – vsock: fix recursive ->recvmsg calls
https://notcve.org/view.php?id=CVE-2024-44996
In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg(). • https://git.kernel.org/stable/c/634f1a7110b439c65fd8a809171c1d2d28bcea6f https://git.kernel.org/stable/c/921f1acf0c3cf6b1260ab57a8a6e8b3d5f3023d5 https://git.kernel.org/stable/c/b4ee8cf1acc5018ed1369150d7bb3e0d0f79e135 https://git.kernel.org/stable/c/69139d2919dd4aa9a553c8245e7c63e82613e3fc •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-44995 – net: hns3: fix a deadlock problem when config TC during resetting
https://notcve.org/view.php?id=CVE-2024-44995
In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix a deadlock problem when config TC during resetting When config TC during the reset process, may cause a deadlock, the flow is as below: pf reset start │ ▼ ...... setup tc │ │ ▼ ▼ DOWN: napi_disable() napi_disable()(skip) │ │ │ ▼ ▼ ...... ...... │ │ ▼ │ napi_enable() │ ▼ UINIT: netif_napi_del() │ ▼ ...... │ ▼ INIT: netif_napi_add() │ ▼ ...... global reset start │ │ ▼ ▼ UP: napi_enable()(skip) ...... │ │ ▼ ▼ ...... napi_disable() In reset process, the driver will DOWN the port and then UINIT, in this case, the setup tc process will UP the port before UINIT, so cause the problem. Adds a DOWN process in UINIT to fix it. • https://git.kernel.org/stable/c/bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 https://git.kernel.org/stable/c/67492d4d105c0a6321b00c393eec96b9a7a97a16 https://git.kernel.org/stable/c/fc250eca15bde34c4c8f806b9d88f55bd56a992c https://git.kernel.org/stable/c/195918217448a6bb7f929d6a2ffffce9f1ece1cc https://git.kernel.org/stable/c/6ae2b7d63cd056f363045eb65409143e16f23ae8 https://git.kernel.org/stable/c/fa1d4de7265c370e673583ac8d1bd17d21826cd9 https://git.kernel.org/stable/c/de37408d5c26fc4a296a28a0c96dcb814219bfa1 https://git.kernel.org/stable/c/be5e816d00a506719e9dbb1a9c861c5ce •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-44991 – tcp: prevent concurrent execution of tcp_sk_exit_batch
https://notcve.org/view.php?id=CVE-2024-44991
In the Linux kernel, the following vulnerability has been resolved: tcp: prevent concurrent execution of tcp_sk_exit_batch Its possible that two threads call tcp_sk_exit_batch() concurrently, once from the cleanup_net workqueue, once from a task that failed to clone a new netns. In the latter case, error unwinding calls the exit handlers in reverse order for the 'failed' netns. tcp_sk_exit_batch() calls tcp_twsk_purge(). Problem is that since commit b099ce2602d8 ("net: Batch inet_twsk_purge"), this function picks up twsk in any dying netns, not just the one passed in via exit_batch list. This means that the error unwind of setup_net() can "steal" and destroy timewait sockets belonging to the exiting netns. This allows the netns exit worker to proceed to call WARN_ON_ONCE(!refcount_dec_and_test(&net->ipv4.tcp_death_row.tw_refcount)); without the expected 1 -> 0 transition, which then splats. At same time, error unwind path that is also running inet_twsk_purge() will splat as well: WARNING: .. at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210 ... refcount_dec include/linux/refcount.h:351 [inline] inet_twsk_kill+0x758/0x9c0 net/ipv4/inet_timewait_sock.c:70 inet_twsk_deschedule_put net/ipv4/inet_timewait_sock.c:221 inet_twsk_purge+0x725/0x890 net/ipv4/inet_timewait_sock.c:304 tcp_sk_exit_batch+0x1c/0x170 net/ipv4/tcp_ipv4.c:3522 ops_exit_list+0x128/0x180 net/core/net_namespace.c:178 setup_net+0x714/0xb40 net/core/net_namespace.c:375 copy_net_ns+0x2f0/0x670 net/core/net_namespace.c:508 create_new_namespaces+0x3ea/0xb10 kernel/nsproxy.c:110 ... because refcount_dec() of tw_refcount unexpectedly dropped to 0. This doesn't seem like an actual bug (no tw sockets got lost and I don't see a use-after-free) but as erroneous trigger of debug check. Add a mutex to force strict ordering: the task that calls tcp_twsk_purge() blocks other task from doing final _dec_and_test before mutex-owner has removed all tw sockets of dying netns. • https://git.kernel.org/stable/c/e9bd0cca09d13ac2f08d25e195203e42d4ad1ce8 https://git.kernel.org/stable/c/e3d9de3742f4d5c47ae35f888d3023a5b54fcd2f https://git.kernel.org/stable/c/99580ae890ec8bd98b21a2a9c6668f8f1555b62e https://git.kernel.org/stable/c/f6fd2dbf584a4047ba88d1369ff91c9851261ec1 https://git.kernel.org/stable/c/565d121b69980637f040eb4d84289869cdaabedf •