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  1. CVE-2023-53824

    Hoch · CVSS 7.8EPSS 0,19%Korrektur verfügbar

    netlink: annotate lockless accesses to nlk->max_recvmsg_len

    In the Linux kernel, the following vulnerability has been resolved: netlink: annotate lockless accesses to nlk->max_recvmsg_len syzbot reported a data-race in data-race in netlink_recvmsg() [1] Indeed, netlink_recvmsg() can be run concurrently, and netlink_dump() also needs protection. [1] BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg read to 0xffff888141840b38 of 8 bytes by task 23057 on cpu 0: netlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988 sock_recvmsg_nosec net/socket.c:1017 [inline] sock_recvmsg net/socket.c:1038 [inline] __sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194 __do_sys_recvfrom net/socket.c:2212 [inline]

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  2. CVE-2023-53821

    Mittel · CVSS 6.8EPSS 0,26%Korrektur verfügbar

    ip6_vti: fix slab-use-after-free in decode_session6

    In the Linux kernel, the following vulnerability has been resolved: ip6_vti: fix slab-use-after-free in decode_session6 When ipv6_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ipv6_vti device sends IPv6 packets. The stack information is as follows: BUG: KASAN: slab-use-after-free in decode_session6+0x103f/0x1890 Read of size 1 at addr ffff88802e08edc2 by task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-next-20230707-00001-g84e2cad7f979 #410 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/

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  3. CVE-2022-50677

    Hoch · CVSS 7EPSS 0,17%Korrektur verfügbar

    ipmi: fix use after free in _ipmi_destroy_user()

    In the Linux kernel, the following vulnerability has been resolved: ipmi: fix use after free in _ipmi_destroy_user() The intf_free() function frees the "intf" pointer so we cannot dereference it again on the next line.

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  4. CVE-2022-50675

    Mittel · CVSS 5.8EPSS 0,24%Korrektur verfügbar

    arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored

    In the Linux kernel, the following vulnerability has been resolved: arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored Prior to commit 69e3b846d8a7 ("arm64: mte: Sync tags for pages where PTE is untagged"), mte_sync_tags() was only called for pte_tagged() entries (those mapped with PROT_MTE). Therefore mte_sync_tags() could safely use test_and_set_bit(PG_mte_tagged, &page->flags) without inadvertently setting PG_mte_tagged on an untagged page. The above commit was required as guests may enable MTE without any control at the stage 2 mapping, nor a PROT_MTE mapping in the VMM. However, the side-effect was that any page wi

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  5. CVE-2022-50673

    Hoch · CVSS 7.8EPSS 0,21%Korrektur verfügbar

    ext4: fix use-after-free in ext4_orphan_cleanup

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in ext4_orphan_cleanup I caught a issue as follows: ================================================================== BUG: KASAN: use-after-free in __list_add_valid+0x28/0x1a0 Read of size 8 at addr ffff88814b13f378 by task mount/710 CPU: 1 PID: 710 Comm: mount Not tainted 6.1.0-rc3-next #370 Call Trace: <TASK> dump_stack_lvl+0x73/0x9f print_report+0x25d/0x759 kasan_report+0xc0/0x120 __asan_load8+0x99/0x140 __list_add_valid+0x28/0x1a0 ext4_orphan_cleanup+0x564/0x9d0 [ext4] __ext4_fill_super+0x48e2/0x5300 [ext4] ext4_fill_supe

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  6. CVE-2022-50672

    Nicht bewertetEPSS 0,24%Korrektur verfügbar

    mailbox: zynq-ipi: fix error handling while device_register() fails

    In the Linux kernel, the following vulnerability has been resolved: mailbox: zynq-ipi: fix error handling while device_register() fails If device_register() fails, it has two issues: 1. The name allocated by dev_set_name() is leaked. 2. The parent of device is not NULL, device_unregister() is called in zynqmp_ipi_free_mboxes(), it will lead a kernel crash because of removing not added device. Call put_device() to give up the reference, so the name is freed in kobject_cleanup(). Add device registered check in zynqmp_ipi_free_mboxes() to avoid null-ptr-deref.

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  7. CVE-2022-50670

    Nicht bewertetEPSS 0,24%Korrektur verfügbar

    mmc: omap_hsmmc: fix return value check of mmc_add_host()

    In the Linux kernel, the following vulnerability has been resolved: mmc: omap_hsmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). Fix this by checking the return value and goto error path wihch will call mmc_free_host().

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  8. CVE-2022-50669

    Nicht bewertetEPSS 0,25%Korrektur verfügbar

    misc: ocxl: fix possible name leak in ocxl_file_register_afu()

    In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible name leak in ocxl_file_register_afu() If device_register() returns error in ocxl_file_register_afu(), the name allocated by dev_set_name() need be freed. As comment of device_register() says, it should use put_device() to give up the reference in the error path. So fix this by calling put_device(), then the name can be freed in kobject_cleanup(), and info is freed in info_release().

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  9. CVE-2022-50668

    Hoch · CVSS 7.5EPSS 0,81%Korrektur verfügbar

    ext4: fix deadlock due to mbcache entry corruption

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix deadlock due to mbcache entry corruption When manipulating xattr blocks, we can deadlock infinitely looping inside ext4_xattr_block_set() where we constantly keep finding xattr block for reuse in mbcache but we are unable to reuse it because its reference count is too big. This happens because cache entry for the xattr block is marked as reusable (e_reusable set) although its reference count is too big. When this inconsistency happens, this inconsistent state is kept indefinitely and so ext4_xattr_block_set() keeps retrying indefinitely. The inconsistent state is

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  11. CVE-2022-50663

    Nicht bewertetEPSS 0,24%Korrektur verfügbar

    net: stmmac: fix possible memory leak in stmmac_dvr_probe()

    In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix possible memory leak in stmmac_dvr_probe() The bitmap_free() should be called to free priv->af_xdp_zc_qps when create_singlethread_workqueue() fails, otherwise there will be a memory leak, so we add the err path error_wq_init to fix it.

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  12. CVE-2022-50662

    Nicht bewertetEPSS 0,24%Korrektur verfügbar

    RDMA/hns: fix memory leak in hns_roce_alloc_mr()

    In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: fix memory leak in hns_roce_alloc_mr() When hns_roce_mr_enable() failed in hns_roce_alloc_mr(), mr_key is not released. Compiled test only.

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  13. CVE-2022-50661

    Mittel · CVSS 5.7EPSS 0,24%Korrektur verfügbar

    seccomp: Move copy_seccomp() to no failure path.

    In the Linux kernel, the following vulnerability has been resolved: seccomp: Move copy_seccomp() to no failure path. Our syzbot instance reported memory leaks in do_seccomp() [0], similar to the report [1]. It shows that we miss freeing struct seccomp_filter and some objects included in it. We can reproduce the issue with the program below [2] which calls one seccomp() and two clone() syscalls. The first clone()d child exits earlier than its parent and sends a signal to kill it during the second clone(), more precisely before the fatal_signal_pending() test in copy_process(). When the parent receives the signal, it has to destroy the em

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  14. CVE-2022-50660

    Nicht bewertetEPSS 0,25%Korrektur verfügbar

    wifi: ipw2200: fix memory leak in ipw_wdev_init()

    In the Linux kernel, the following vulnerability has been resolved: wifi: ipw2200: fix memory leak in ipw_wdev_init() In the error path of ipw_wdev_init(), exception value is returned, and the memory applied for in the function is not released. Also the memory is not released in ipw_pci_probe(). As a result, memory leakage occurs. So memory release needs to be added to the error path of ipw_wdev_init().

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  15. CVE-2022-50659

    Nicht bewertetEPSS 0,28%Korrektur verfügbar

    hwrng: geode - Fix PCI device refcount leak

    In the Linux kernel, the following vulnerability has been resolved: hwrng: geode - Fix PCI device refcount leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. We add a new struct 'amd_geode_priv' to record pointer of the pci_dev and membase, and then add missing pci_dev_put() for the normal and error path.

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  16. CVE-2023-53820

    Mittel · CVSS 6.7EPSS 0,28%Korrektur verfügbar

    loop: loop_set_status_from_info() check before assignment

    In the Linux kernel, the following vulnerability has been resolved: loop: loop_set_status_from_info() check before assignment In loop_set_status_from_info(), lo->lo_offset and lo->lo_sizelimit should be checked before reassignment, because if an overflow error occurs, the original correct value will be changed to the wrong value, and it will not be changed back. More, the original patch did not solve the problem, the value was set and ioctl returned an error, but the subsequent io used the value in the loop driver, which still caused an alarm: loop_handle_cmd do_req_filebacked loff_t pos = ((loff_t) blk_rq_pos(rq) << 9) + lo->lo_offset

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  18. CVE-2023-53819

    Hoch · CVSS 7.8EPSS 0,14%Korrektur verfügbar

    amdgpu: validate offset_in_bo of drm_amdgpu_gem_va

    In the Linux kernel, the following vulnerability has been resolved: amdgpu: validate offset_in_bo of drm_amdgpu_gem_va This is motivated by OOB access in amdgpu_vm_update_range when offset_in_bo+map_size overflows. v2: keep the validations in amdgpu_vm_bo_map v3: add the validations to amdgpu_vm_bo_map/amdgpu_vm_bo_replace_map rather than to amdgpu_gem_va_ioctl

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  19. CVE-2023-53818

    Nicht bewertetEPSS 0,19%Korrektur verfügbar

    ARM: zynq: Fix refcount leak in zynq_early_slcr_init

    In the Linux kernel, the following vulnerability has been resolved: ARM: zynq: Fix refcount leak in zynq_early_slcr_init of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on error path. Add missing of_node_put() to avoid refcount leak.

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  20. CVE-2023-53817

    Hoch · CVSS 7.5EPSS 0,51%Korrektur verfügbar

    crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()

    In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() During NVMeTCP Authentication a controller can trigger a kernel oops by specifying the 8192 bit Diffie Hellman group and passing a correctly sized, but zeroed Diffie Hellamn value. mpi_cmp_ui() was detecting this if the second parameter was 0, but 1 is passed from dh_is_pubkey_valid(). This causes the null pointer u->d to be dereferenced towards the end of mpi_cmp_ui()

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