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Уязвимости linux · Страница 171

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

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  1. CVE-2021-47112

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    x86/kvm: Teardown PV features on boot CPU as well

    In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Teardown PV features on boot CPU as well Various PV features (Async PF, PV EOI, steal time) work through memory shared with hypervisor and when we restore from hibernation we must properly teardown all these features to make sure hypervisor doesn't write to stale locations after we jump to the previously hibernated kernel (which can try to place anything there). For secondary CPUs the job is already done by kvm_cpu_down_prepare(), register syscore ops to do the same for boot CPU.

    linuxОперационные системы
    Опубликовано Обновлено
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  2. CVE-2021-47110

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

    x86/kvm: Disable kvmclock on all CPUs on shutdown

    In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Disable kvmclock on all CPUs on shutdown Currenly, we disable kvmclock from machine_shutdown() hook and this only happens for boot CPU. We need to disable it for all CPUs to guard against memory corruption e.g. on restore from hibernate. Note, writing '0' to kvmclock MSR doesn't clear memory location, it just prevents hypervisor from updating the location so for the short while after write and while CPU is still alive, the clock remains usable and correct so we don't need to switch to some other clocksource.

    linuxОперационные системы
    Опубликовано Обновлено
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  3. CVE-2024-2193

    Средний · CVSS 5.7EPSS 1,28%Нет опубликованного исправления

    Speculative Race Condition impacts modern CPU architectures that support speculative execution, also known as GhostRace.

    A Speculative Race Condition (SRC) vulnerability that impacts modern CPU architectures supporting speculative execution (related to Spectre V1) has been disclosed. An unauthenticated attacker can exploit this vulnerability to disclose arbitrary data from the CPU using race conditions to access the speculative executable code paths.

    linuxОперационные системы
    Опубликовано Обновлено
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  4. CVE-2024-26625

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    llc: call sock_orphan() at release time

    In the Linux kernel, the following vulnerability has been resolved: llc: call sock_orphan() at release time syzbot reported an interesting trace [1] caused by a stale sk->sk_wq pointer in a closed llc socket. In commit ff7b11aa481f ("net: socket: set sock->sk to NULL after calling proto_ops::release()") Eric Biggers hinted that some protocols are missing a sock_orphan(), we need to perform a full audit. In net-next, I plan to clear sock->sk from sock_orphan() and amend Eric patch to add a warning. [1] BUG: KASAN: slab-use-after-free in list_empty include/linux/list.h:373 [inline] BUG: KASAN: slab-use-after-free in waitqueue_active incl

    linuxОперационные системы
    Опубликовано Обновлено
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  5. CVE-2023-52607

    Средний · CVSS 5.5EPSS 0,23%Нет опубликованного исправления

    powerpc/mm: Fix null-pointer dereference in pgtable_cache_add

    In the Linux kernel, the following vulnerability has been resolved: powerpc/mm: Fix null-pointer dereference in pgtable_cache_add kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity.

    linuxОперационные системы
    Опубликовано Обновлено
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  6. CVE-2023-52604

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree

    In the Linux kernel, the following vulnerability has been resolved: FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree Syzkaller reported the following issue: UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2867:6 index 196694 is out of range for type 's8[1365]' (aka 'signed char[1365]') CPU: 1 PID: 109 Comm: jfsCommit Not tainted 6.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x11c/0x150

    linuxОперационные системы
    Опубликовано Обновлено
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  7. CVE-2023-52603

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

    UBSAN: array-index-out-of-bounds in dtSplitRoot

    In the Linux kernel, the following vulnerability has been resolved: UBSAN: array-index-out-of-bounds in dtSplitRoot Syzkaller reported the following issue: oop0: detected capacity change from 0 to 32768 UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:1971:9 index -2 is out of range for type 'struct dtslot [128]' CPU: 0 PID: 3613 Comm: syz-executor270 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [

    linuxОперационные системы
    Опубликовано Обновлено
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  8. CVE-2023-52602

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    jfs: fix slab-out-of-bounds Read in dtSearch

    In the Linux kernel, the following vulnerability has been resolved: jfs: fix slab-out-of-bounds Read in dtSearch Currently while searching for current page in the sorted entry table of the page there is a out of bound access. Added a bound check to fix the error. Dave: Set return code to -EIO

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

  9. CVE-2023-52601

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    jfs: fix array-index-out-of-bounds in dbAdjTree

    In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds in dbAdjTree Currently there is a bound check missing in the dbAdjTree while accessing the dmt_stree. To add the required check added the bool is_ctl which is required to determine the size as suggest in the following commit. https://lore.kernel.org/linux-kernel-mentees/f9475918-2186-49b8-b801-6f0f9e75f4fa@oracle.com/

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

  10. CVE-2023-52600

    Высокий · CVSS 7.8EPSS 0,28%Нет опубликованного исправления

    jfs: fix uaf in jfs_evict_inode

    In the Linux kernel, the following vulnerability has been resolved: jfs: fix uaf in jfs_evict_inode When the execution of diMount(ipimap) fails, the object ipimap that has been released may be accessed in diFreeSpecial(). Asynchronous ipimap release occurs when rcu_core() calls jfs_free_node(). Therefore, when diMount(ipimap) fails, sbi->ipimap should not be initialized as ipimap.

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

  11. CVE-2023-52599

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    jfs: fix array-index-out-of-bounds in diNewExt

    In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds in diNewExt [Syz report] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:2360:2 index -878706688 is out of range for type 'struct iagctl[128]' CPU: 1 PID: 5065 Comm: syz-executor282 Not tainted 6.7.0-rc4-syzkaller-00009-gbee0e7762ad2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348

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

  12. CVE-2023-52597

    Средний · CVSS 4EPSS 0,23%Нет опубликованного исправления

    KVM: s390: fix setting of fpc register

    In the Linux kernel, the following vulnerability has been resolved: KVM: s390: fix setting of fpc register kvm_arch_vcpu_ioctl_set_fpu() allows to set the floating point control (fpc) register of a guest cpu. The new value is tested for validity by temporarily loading it into the fpc register. This may lead to corruption of the fpc register of the host process: if an interrupt happens while the value is temporarily loaded into the fpc register, and within interrupt context floating point or vector registers are used, the current fp/vx registers are saved with save_fpu_regs() assuming they belong to user space and will be loaded into fp/vx

    linuxОперационные системы
    Опубликовано Обновлено
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  13. CVE-2023-52594

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus()

    In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: Fix potential array-index-out-of-bounds read in ath9k_htc_txstatus() Fix an array-index-out-of-bounds read in ath9k_htc_txstatus(). The bug occurs when txs->cnt, data from a URB provided by a USB device, is bigger than the size of the array txs->txstatus, which is HTC_MAX_TX_STATUS. WARN_ON() already checks it, but there is no bug handling code after the check. Make the function return if that is the case. Found by a modified version of syzkaller. UBSAN: array-index-out-of-bounds in htc_drv_txrx.c index 13 is out of range for type '__wmi_event_txstatus [12]'

    linuxОперационные системы
    Опубликовано Обновлено
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  14. CVE-2023-52591

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

    reiserfs: Avoid touching renamed directory if parent does not change

    In the Linux kernel, the following vulnerability has been resolved: reiserfs: Avoid touching renamed directory if parent does not change The VFS will not be locking moved directory if its parent does not change. Change reiserfs rename code to avoid touching renamed directory if its parent does not change as without locking that can corrupt the filesystem.

    linuxОперационные системы
    Опубликовано Обновлено
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  15. CVE-2023-52590

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

    ocfs2: Avoid touching renamed directory if parent does not change

    In the Linux kernel, the following vulnerability has been resolved: ocfs2: Avoid touching renamed directory if parent does not change The VFS will not be locking moved directory if its parent does not change. Change ocfs2 rename code to avoid touching renamed directory if its parent does not change as without locking that can corrupt the filesystem.

    linuxОперационные системы
    Опубликовано Обновлено
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  16. CVE-2023-52588

    Высокий · CVSS 7.3EPSS 0,26%Нет опубликованного исправления

    f2fs: fix to tag gcing flag on page during block migration

    In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to tag gcing flag on page during block migration It needs to add missing gcing flag on page during block migration, in order to garantee migrated data be persisted during checkpoint, otherwise out-of-order persistency between data and node may cause data corruption after SPOR. Similar issue was fixed by commit 2d1fe8a86bf5 ("f2fs: fix to tag gcing flag on page during file defragment").

    linuxОперационные системы
    Опубликовано Обновлено
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  17. CVE-2021-47103

    Критический · CVSS 9.8EPSS 0,95%Нет опубликованного исправления

    inet: fully convert sk->sk_rx_dst to RCU rules

    In the Linux kernel, the following vulnerability has been resolved: inet: fully convert sk->sk_rx_dst to RCU rules syzbot reported various issues around early demux, one being included in this changelog [1] sk->sk_rx_dst is using RCU protection without clearly documenting it. And following sequences in tcp_v4_do_rcv()/tcp_v6_do_rcv() are not following standard RCU rules. [a] dst_release(dst); [b] sk->sk_rx_dst = NULL; They look wrong because a delete operation of RCU protected pointer is supposed to clear the pointer before the call_rcu()/synchronize_rcu() guarding actual memory freeing. In some cases indeed, dst could be freed b

    linuxОперационные системы
    Опубликовано Обновлено
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  18. CVE-2021-47086

    Средний · CVSS 5.5EPSS 0,23%Нет опубликованного исправления

    phonet/pep: refuse to enable an unbound pipe

    In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refuse to enable an unbound pipe This ioctl() implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur: 1) We'd send an pipe enablement request with an invalid source object. 2) Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object.

    linuxОперационные системы
    Опубликовано Обновлено
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  19. CVE-2024-26622

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

    tomoyo: fix UAF write bug in tomoyo_write_control()

    In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems.

    linuxОперационные системы
    Опубликовано Обновлено
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  20. CVE-2023-52578

    Высокий · CVSS 7EPSS 0,19%Нет опубликованного исправления

    net: bridge: use DEV_STATS_INC()

    In the Linux kernel, the following vulnerability has been resolved: net: bridge: use DEV_STATS_INC() syzbot/KCSAN reported data-races in br_handle_frame_finish() [1] This function can run from multiple cpus without mutual exclusion. Adopt SMP safe DEV_STATS_INC() to update dev->stats fields. Handles updates to dev->stats.tx_dropped while we are at it. [1] BUG: KCSAN: data-race in br_handle_frame_finish / br_handle_frame_finish read-write to 0xffff8881374b2178 of 8 bytes by interrupt on cpu 1: br_handle_frame_finish+0xd4f/0xef0 net/bridge/br_input.c:189 br_nf_hook_thresh+0x1ed/0x220 br_nf_pre_routing_finish_ipv6+0x50f/0x540 NF_HOOK inclu

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

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