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Уязвимости linux · Страница 166

За последние 30 дней в linux опубликовано уязвимостей: 206; в каталоге KEV: 0.

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  1. CVE-2023-52653

    Средний · CVSS 5.5EPSS 0,27%Нет опубликованного исправления

    SUNRPC: fix a memleak in gss_import_v2_context

    In the Linux kernel, the following vulnerability has been resolved: SUNRPC: fix a memleak in gss_import_v2_context The ctx->mech_used.data allocated by kmemdup is not freed in neither gss_import_v2_context nor it only caller gss_krb5_import_sec_context, which frees ctx on error. Thus, this patch reform the last call of gss_import_v2_context to the gss_krb5_import_ctx_v2, preventing the memleak while keepping the return formation.

    linuxОперационные системы
    Опубликовано Обновлено
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  2. CVE-2024-27059

    Средний · CVSS 5.5EPSS 0,24%Нет опубликованного исправления

    USB: usb-storage: Prevent divide-by-0 error in isd200_ata_command

    In the Linux kernel, the following vulnerability has been resolved: USB: usb-storage: Prevent divide-by-0 error in isd200_ata_command The isd200 sub-driver in usb-storage uses the HEADS and SECTORS values in the ATA ID information to calculate cylinder and head values when creating a CDB for READ or WRITE commands. The calculation involves division and modulus operations, which will cause a crash if either of these values is 0. While this never happens with a genuine device, it could happen with a flawed or subversive emulation, as reported by the syzbot fuzzer. Protect against this possibility by refusing to bind to the device if either

    linuxОперационные системы
    Опубликовано Обновлено
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  3. CVE-2024-27043

    Высокий · CVSS 7.8EPSS 0,29%Нет опубликованного исправления

    media: edia: dvbdev: fix a use-after-free

    In the Linux kernel, the following vulnerability has been resolved: media: edia: dvbdev: fix a use-after-free In dvb_register_device, *pdvbdev is set equal to dvbdev, which is freed in several error-handling paths. However, *pdvbdev is not set to NULL after dvbdev's deallocation, causing use-after-frees in many places, for example, in the following call chain: budget_register |-> dvb_dmxdev_init |-> dvb_register_device |-> dvb_dmxdev_release |-> dvb_unregister_device |-> dvb_remove_device |-> dvb_device_put |-> kref_put When calling dvb_unregister_device, dmxd

    linuxОперационные системы
    Опубликовано Обновлено
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  4. CVE-2024-27037

    Средний · CVSS 5.5EPSS 0,27%Нет опубликованного исправления

    clk: zynq: Prevent null pointer dereference caused by kmalloc failure

    In the Linux kernel, the following vulnerability has been resolved: clk: zynq: Prevent null pointer dereference caused by kmalloc failure The kmalloc() in zynq_clk_setup() will return null if the physical memory has run out. As a result, if we use snprintf() to write data to the null address, the null pointer dereference bug will happen. This patch uses a stack variable to replace the kmalloc().

    linuxОперационные системы
    Опубликовано Обновлено
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  5. CVE-2024-27020

    Высокий · CVSS 7.8EPSS 0,22%Нет опубликованного исправления

    netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() nft_unregister_expr() can concurrent with __nft_expr_type_get(), and there is not any protection when iterate over nf_tables_expressions list in __nft_expr_type_get(). Therefore, there is potential data-race of nf_tables_expressions list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_expressions list in __nft_expr_type_get(), and use rcu_read_lock() in the caller nft_expr_type_get() to protect the entire type query process.

    linuxОперационные системы
    Опубликовано Обновлено
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  6. CVE-2024-27013

    Средний · CVSS 5.5EPSS 0,27%Нет опубликованного исправления

    tun: limit printing rate when illegal packet received by tun dev

    In the Linux kernel, the following vulnerability has been resolved: tun: limit printing rate when illegal packet received by tun dev vhost_worker will call tun call backs to receive packets. If too many illegal packets arrives, tun_do_read will keep dumping packet contents. When console is enabled, it will costs much more cpu time to dump packet and soft lockup will be detected. net_ratelimit mechanism can be used to limit the dumping rate. PID: 33036 TASK: ffff949da6f20000 CPU: 23 COMMAND: "vhost-32980" #0 [fffffe00003fce50] crash_nmi_callback at ffffffff89249253 #1 [fffffe00003fce58] nmi_handle at ffffffff89225fa3 #2 [fffffe000

    linuxОперационные системы
    Опубликовано Обновлено
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  7. CVE-2024-27008

    Высокий · CVSS 7.8EPSS 0,3%Нет опубликованного исправления

    drm: nv04: Fix out of bounds access

    In the Linux kernel, the following vulnerability has been resolved: drm: nv04: Fix out of bounds access When Output Resource (dcb->or) value is assigned in fabricate_dcb_output(), there may be out of bounds access to dac_users array in case dcb->or is zero because ffs(dcb->or) is used as index there. The 'or' argument of fabricate_dcb_output() must be interpreted as a number of bit to set, not value. Utilize macros from 'enum nouveau_or' in calls instead of hardcoding. Found by Linux Verification Center (linuxtesting.org) with SVACE.

    linuxОперационные системы
    Опубликовано Обновлено
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  8. CVE-2024-27001

    Средний · CVSS 5.5EPSS 0,28%Нет опубликованного исправления

    comedi: vmk80xx: fix incomplete endpoint checking

    In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix incomplete endpoint checking While vmk80xx does have endpoint checking implemented, some things can fall through the cracks. Depending on the hardware model, URBs can have either bulk or interrupt type, and current version of vmk80xx_find_usb_endpoints() function does not take that fully into account. While this warning does not seem to be too harmful, at the very least it will crash systems with 'panic_on_warn' set on them. Fix the issue found by Syzkaller [1] by somewhat simplifying the endpoint checking process with usb_find_common_endpoints() and e

    linuxОперационные системы
    Опубликовано Обновлено
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  9. CVE-2024-26999

    Средний · CVSS 5.5EPSS 0,18%Нет опубликованного исправления

    serial/pmac_zilog: Remove flawed mitigation for rx irq flood

    In the Linux kernel, the following vulnerability has been resolved: serial/pmac_zilog: Remove flawed mitigation for rx irq flood The mitigation was intended to stop the irq completely. That may be better than a hard lock-up but it turns out that you get a crash anyway if you're using pmac_zilog as a serial console: ttyPZ0: pmz: rx irq flood ! BUG: spinlock recursion on CPU#0, swapper/0 That's because the pr_err() call in pmz_receive_chars() results in pmz_console_write() attempting to lock a spinlock already locked in pmz_interrupt(). With CONFIG_DEBUG_SPINLOCK=y, this produces a fatal BUG splat. The spinlock in question is the one in str

    linuxОперационные системы
    Опубликовано Обновлено
    Исходное сообщение 1 ↗Исходное сообщение 2 ↗Исходное сообщение 3 ↗

  10. CVE-2024-26994

    Высокий · CVSS 7.8EPSS 0,29%Нет опубликованного исправления

    speakup: Avoid crash on very long word

    In the Linux kernel, the following vulnerability has been resolved: speakup: Avoid crash on very long word In case a console is set up really large and contains a really long word (> 256 characters), we have to stop before the length of the word buffer.

    linuxОперационные системы
    Опубликовано Обновлено
    Исходное сообщение 1 ↗Исходное сообщение 2 ↗Исходное сообщение 3 ↗

  11. CVE-2024-26982

    Высокий · CVSS 7.1EPSS 0,28%Нет опубликованного исправления

    Squashfs: check the inode number is not the invalid value of zero

    In the Linux kernel, the following vulnerability has been resolved: Squashfs: check the inode number is not the invalid value of zero Syskiller has produced an out of bounds access in fill_meta_index(). That out of bounds access is ultimately caused because the inode has an inode number with the invalid value of zero, which was not checked. The reason this causes the out of bounds access is due to following sequence of events: 1. Fill_meta_index() is called to allocate (via empty_meta_index()) and fill a metadata index. It however suffers a data read error and aborts, invalidating the newly returned empty metadata index. It doe

    linuxОперационные системы
    Опубликовано Обновлено
    Исходное сообщение 1 ↗Исходное сообщение 2 ↗Исходное сообщение 3 ↗

  12. CVE-2024-26981

    Высокий · CVSS 7.8EPSS 0,27%Нет опубликованного исправления

    nilfs2: fix OOB in nilfs_set_de_type

    In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix OOB in nilfs_set_de_type The size of the nilfs_type_by_mode array in the fs/nilfs2/dir.c file is defined as "S_IFMT >> S_SHIFT", but the nilfs_set_de_type() function, which uses this array, specifies the index to read from the array in the same way as "(mode & S_IFMT) >> S_SHIFT". static void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode *inode) { umode_t mode = inode->i_mode; de->file_type = nilfs_type_by_mode[(mode & S_IFMT)>>S_SHIFT]; // oob } However, when the index is determined this way, an out-of-bounds (OOB) error occurs by referring t

    linuxОперационные системы
    Опубликовано Обновлено
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  13. CVE-2024-26976

    Высокий · CVSS 7.8EPSS 0,26%Нет опубликованного исправления

    KVM: Always flush async #PF workqueue when vCPU is being destroyed

    In the Linux kernel, the following vulnerability has been resolved: KVM: Always flush async #PF workqueue when vCPU is being destroyed Always flush the per-vCPU async #PF workqueue when a vCPU is clearing its completion queue, e.g. when a VM and all its vCPUs is being destroyed. KVM must ensure that none of its workqueue callbacks is running when the last reference to the KVM _module_ is put. Gifting a reference to the associated VM prevents the workqueue callback from dereferencing freed vCPU/VM memory, but does not prevent the KVM module from being unloaded before the callback completes. Drop the misguided VM refcount gifting, as callin

    linuxОперационные системы
    Опубликовано Обновлено
    Исходное сообщение 1 ↗Исходное сообщение 2 ↗Исходное сообщение 3 ↗

  14. CVE-2024-26973

    Средний · CVSS 5.5EPSS 0,26%Нет опубликованного исправления

    fat: fix uninitialized field in nostale filehandles

    In the Linux kernel, the following vulnerability has been resolved: fat: fix uninitialized field in nostale filehandles When fat_encode_fh_nostale() encodes file handle without a parent it stores only first 10 bytes of the file handle. However the length of the file handle must be a multiple of 4 so the file handle is actually 12 bytes long and the last two bytes remain uninitialized. This is not great at we potentially leak uninitialized information with the handle to userspace. Properly initialize the full handle length.

    linuxОперационные системы
    Опубликовано Обновлено
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  15. CVE-2024-26956

    Средний · CVSS 5.5EPSS 0,26%Нет опубликованного исправления

    nilfs2: fix failure to detect DAT corruption in btree and direct mappings

    In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix failure to detect DAT corruption in btree and direct mappings Patch series "nilfs2: fix kernel bug at submit_bh_wbc()". This resolves a kernel BUG reported by syzbot. Since there are two flaws involved, I've made each one a separate patch. The first patch alone resolves the syzbot-reported bug, but I think both fixes should be sent to stable, so I've tagged them as such. This patch (of 2): Syzbot has reported a kernel bug in submit_bh_wbc() when writing file data to a nilfs2 file system whose metadata is corrupted. There are two flaws involved in this iss

    linuxОперационные системы
    Опубликовано Обновлено
    Исходное сообщение 1 ↗Исходное сообщение 2 ↗Исходное сообщение 3 ↗

  16. CVE-2024-26955

    Высокий · CVSS 7.8EPSS 0,26%Нет опубликованного исправления

    nilfs2: prevent kernel bug at submit_bh_wbc()

    In the Linux kernel, the following vulnerability has been resolved: nilfs2: prevent kernel bug at submit_bh_wbc() Fix a bug where nilfs_get_block() returns a successful status when searching and inserting the specified block both fail inconsistently. If this inconsistent behavior is not due to a previously fixed bug, then an unexpected race is occurring, so return a temporary error -EAGAIN instead. This prevents callers such as __block_write_begin_int() from requesting a read into a buffer that is not mapped, which would cause the BUG_ON check for the BH_Mapped flag in submit_bh_wbc() to fail.

    linuxОперационные системы
    Опубликовано Обновлено
    Исходное сообщение 1 ↗Исходное сообщение 2 ↗Исходное сообщение 3 ↗

  17. CVE-2022-48659

    Средний · CVSS 5.7EPSS 0,24%Нет опубликованного исправления

    mm/slub: fix to return errno if kmalloc() fails

    In the Linux kernel, the following vulnerability has been resolved: mm/slub: fix to return errno if kmalloc() fails In create_unique_id(), kmalloc(, GFP_KERNEL) can fail due to out-of-memory, if it fails, return errno correctly rather than triggering panic via BUG_ON(); kernel BUG at mm/slub.c:5893! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Call trace: sysfs_slab_add+0x258/0x260 mm/slub.c:5973 __kmem_cache_create+0x60/0x118 mm/slub.c:4899 create_cache mm/slab_common.c:229 [inline] kmem_cache_create_usercopy+0x19c/0x31c mm/slab_common.c:335 kmem_cache_create+0x1c/0x28 mm/slab_common.c:390 f2fs_kmem_cache_create fs/f2fs/f2fs.h:27

    linuxОперационные системы
    Опубликовано Обновлено
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  18. CVE-2022-48636

    Высокий · CVSS 7.8EPSS 0,24%Нет опубликованного исправления

    s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup

    In the Linux kernel, the following vulnerability has been resolved: s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Fix Oops in dasd_alias_get_start_dev() function caused by the pavgroup pointer being NULL. The pavgroup pointer is checked on the entrance of the function but without the lcu->lock being held. Therefore there is a race window between dasd_alias_get_start_dev() and _lcu_update() which sets pavgroup to NULL with the lcu->lock held. Fix by checking the pavgroup pointer with lcu->lock held.

    linuxОперационные системы
    Опубликовано Обновлено
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  19. CVE-2022-48631

    Высокий · CVSS 7.1EPSS 0,24%Нет опубликованного исправления

    ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0

    In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0 When walking through an inode extents, the ext4_ext_binsearch_idx() function assumes that the extent header has been previously validated. However, there are no checks that verify that the number of entries (eh->eh_entries) is non-zero when depth is > 0. And this will lead to problems because the EXT_FIRST_INDEX() and EXT_LAST_INDEX() will return garbage and result in this: [ 135.245946] ------------[ cut here ]------------ [ 135.247579] kernel BUG at fs/ext4/extents.c:2258! [ 135.249045] invalid o

    linuxОперационные системы
    Опубликовано Обновлено
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  20. CVE-2024-26923

    Высокий · CVSS 7.8EPSS 0,21%Нет опубликованного исправления

    af_unix: Fix garbage collector racing against connect()

    In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix garbage collector racing against connect() Garbage collector does not take into account the risk of embryo getting enqueued during the garbage collection. If such embryo has a peer that carries SCM_RIGHTS, two consecutive passes of scan_children() may see a different set of children. Leading to an incorrectly elevated inflight count, and then a dangling pointer within the gc_inflight_list. sockets are AF_UNIX/SOCK_STREAM S is an unconnected socket L is a listening in-flight socket bound to addr, not in fdtable V's fd will be passed via sendmsg(), gets inflight

    linuxОперационные системы
    Опубликовано Обновлено
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