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In den letzten 30 Tagen veröffentlichte Sicherheitslücken für linux-fips: 266. Davon im KEV-Katalog: 0.

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  1. CVE-2024-36919

    Mittel · CVSS 5.5EPSS 0,21%Keine Korrektur veröffentlicht

    scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload

    In the Linux kernel, the following vulnerability has been resolved: scsi: bnx2fc: Remove spin_lock_bh while releasing resources after upload The session resources are used by FW and driver when session is offloaded, once session is uploaded these resources are not used. The lock is not required as these fields won't be used any longer. The offload and upload calls are sequential, hence lock is not required. This will suppress following BUG_ON(): [ 449.843143] ------------[ cut here ]------------ [ 449.848302] kernel BUG at mm/vmalloc.c:2727! [ 449.853072] invalid opcode: 0000 [#1] PREEMPT SMP PTI [ 449.858712] CPU: 5 PID: 1996 Comm: k

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  2. CVE-2024-36917

    Mittel · CVSS 5.5EPSS 0,22%Keine Korrektur veröffentlicht

    block: fix overflow in blk_ioctl_discard()

    In the Linux kernel, the following vulnerability has been resolved: block: fix overflow in blk_ioctl_discard() There is no check for overflow of 'start + len' in blk_ioctl_discard(). Hung task occurs if submit an discard ioctl with the following param: start = 0x80000000000ff000, len = 0x8000000000fff000; Add the overflow validation now.

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  3. CVE-2024-36915

    Hoch · CVSS 7.1EPSS 0,25%Keine Korrektur veröffentlicht

    nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies

    In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: fix nfc_llcp_setsockopt() unsafe copies syzbot reported unsafe calls to copy_from_sockptr() [1] Use copy_safe_from_sockptr() instead. [1] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr include/linux/sockptr.h:55 [inline] BUG: KASAN: slab-out-of-bounds in nfc_llcp_setsockopt+0x6c2/0x850 net/nfc/llcp_sock.c:255 Read of size 4 at addr ffff88801caa1ec3 by task syz-executor459/5078 CPU: 0 PID: 5078 Comm: syz-executor459 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd1

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  4. CVE-2024-36905

    Mittel · CVSS 5.7EPSS 0,33%Keine Korrektur veröffentlicht

    tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets

    In the Linux kernel, the following vulnerability has been resolved: tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets TCP_SYN_RECV state is really special, it is only used by cross-syn connections, mostly used by fuzzers. In the following crash [1], syzbot managed to trigger a divide by zero in tcp_rcv_space_adjust() A socket makes the following state transitions, without ever calling tcp_init_transfer(), meaning tcp_init_buffer_space() is also not called. TCP_CLOSE connect() TCP_SYN_SENT TCP_SYN_RECV shutdown() -> tcp_shutdown(sk, SEND_SHUTDOWN) TCP_FIN_WAIT1 To fix this issue, change tcp_s

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  5. CVE-2024-36902

    Mittel · CVSS 5.7EPSS 0,29%Keine Korrektur veröffentlicht

    ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action()

    In the Linux kernel, the following vulnerability has been resolved: ipv6: fib6_rules: avoid possible NULL dereference in fib6_rule_action() syzbot is able to trigger the following crash [1], caused by unsafe ip6_dst_idev() use. Indeed ip6_dst_idev() can return NULL, and must always be checked. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31648 Comm: syz-executor.0 Not tainted 6.9.0-rc4-next-20240417-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, B

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  6. CVE-2024-36901

    Mittel · CVSS 5.7EPSS 0,26%Keine Korrektur veröffentlicht

    ipv6: prevent NULL dereference in ip6_output()

    In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent NULL dereference in ip6_output() According to syzbot, there is a chance that ip6_dst_idev() returns NULL in ip6_output(). Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7] CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Goo

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  7. CVE-2024-36894

    Hoch · CVSS 7.8EPSS 0,2%Keine Korrektur veröffentlicht

    usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete

    In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete FFS based applications can utilize the aio_cancel() callback to dequeue pending USB requests submitted to the UDC. There is a scenario where the FFS application issues an AIO cancel call, while the UDC is handling a soft disconnect. For a DWC3 based implementation, the callstack looks like the following: DWC3 Gadget FFS Application dwc3_gadget_soft_disconnect() ... --> dwc3_stop_active_transfers() --> dwc3_gadget_giveback(-ESHUTDOWN) --> ff

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  8. CVE-2024-36886

    Kritisch · CVSS 9.8EPSS 1,31%Keine Korrektur veröffentlicht

    tipc: fix UAF in error path

    In the Linux kernel, the following vulnerability has been resolved: tipc: fix UAF in error path Sam Page (sam4k) working with Trend Micro Zero Day Initiative reported a UAF in the tipc_buf_append() error path: BUG: KASAN: slab-use-after-free in kfree_skb_list_reason+0x47e/0x4c0 linux/net/core/skbuff.c:1183 Read of size 8 at addr ffff88804d2a7c80 by task poc/8034 CPU: 1 PID: 8034 Comm: poc Not tainted 6.8.2 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 Call Trace: <IRQ> __dump_stack linux/lib/dump_stack.c:88 dump_stack_lvl+0xd9/0x1b0 linux/lib/dump_stack.c:106 print_address_description

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  9. CVE-2024-36883

    Hoch · CVSS 7.8EPSS 0,31%Keine Korrektur veröffentlicht

    net: fix out-of-bounds access in ops_init

    In the Linux kernel, the following vulnerability has been resolved: net: fix out-of-bounds access in ops_init net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_g

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  10. CVE-2024-36880

    Hoch · CVSS 7.8EPSS 0,25%Keine Korrektur veröffentlicht

    Bluetooth: qca: add missing firmware sanity checks

    In the Linux kernel, the following vulnerability has been resolved: Bluetooth: qca: add missing firmware sanity checks Add the missing sanity checks when parsing the firmware files before downloading them to avoid accessing and corrupting memory beyond the vmalloced buffer.

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  11. CVE-2024-36016

    Hoch · CVSS 7.8EPSS 0,27%Keine Korrektur veröffentlicht

    tty: n_gsm: fix possible out-of-bounds in gsm0_receive()

    In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() Assuming the following: - side A configures the n_gsm in basic option mode - side B sends the header of a basic option mode frame with data length 1 - side A switches to advanced option mode - side B sends 2 data bytes which exceeds gsm->len Reason: gsm->len is not used in advanced option mode. - side A switches to basic option mode - side B keeps sending until gsm0_receive() writes past gsm->buf Reason: Neither gsm->state nor gsm->len have been reset after reconfiguration. Fix this by changing gsm->count to gs

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  12. CVE-2023-52881

    Kritisch · CVSS 9.8EPSS 0,61%Keine Korrektur veröffentlicht

    tcp: do not accept ACK of bytes we never sent

    In the Linux kernel, the following vulnerability has been resolved: tcp: do not accept ACK of bytes we never sent This patch is based on a detailed report and ideas from Yepeng Pan and Christian Rossow. ACK seq validation is currently following RFC 5961 5.2 guidelines: The ACK value is considered acceptable only if it is in the range of ((SND.UNA - MAX.SND.WND) <= SEG.ACK <= SND.NXT). All incoming segments whose ACK value doesn't satisfy the above condition MUST be discarded and an ACK sent back. It needs to be noted that RFC 793 on page 72 (fifth check) says: "If the ACK is a duplicate (SEG.ACK < SND.UNA), it can be i

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  13. CVE-2023-52880

    Hoch · CVSS 7.8EPSS 0,24%Keine Korrektur veröffentlicht

    tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc

    In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc Any unprivileged user can attach N_GSM0710 ldisc, but it requires CAP_NET_ADMIN to create a GSM network anyway. Require initial namespace CAP_NET_ADMIN to do that.

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  14. CVE-2021-47571

    Hoch · CVSS 7.8EPSS 0,21%Keine Korrektur veröffentlicht

    staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect()

    In the Linux kernel, the following vulnerability has been resolved: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() The free_rtllib() function frees the "dev" pointer so there is use after free on the next line. Re-arrange things to avoid that.

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  15. CVE-2021-47566

    Hoch · CVSS 7.8EPSS 0,23%Keine Korrektur veröffentlicht

    proc/vmcore: fix clearing user buffer by properly using clear_user()

    In the Linux kernel, the following vulnerability has been resolved: proc/vmcore: fix clearing user buffer by properly using clear_user() To clear a user buffer we cannot simply use memset, we have to use clear_user(). With a virtio-mem device that registers a vmcore_cb and has some logically unplugged memory inside an added Linux memory block, I can easily trigger a BUG by copying the vmcore via "cp": systemd[1]: Starting Kdump Vmcore Save Service... kdump[420]: Kdump is using the default log level(3). kdump[453]: saving to /sysroot/var/crash/127.0.0.1-2021-11-11-14:59:22/ kdump[458]: saving vmcore-dmesg.txt to /sysroot/var/crash/

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  16. CVE-2021-47565

    Hoch · CVSS 7.8EPSS 0,23%Keine Korrektur veröffentlicht

    scsi: mpt3sas: Fix kernel panic during drive powercycle test

    In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Fix kernel panic during drive powercycle test While looping over shost's sdev list it is possible that one of the drives is getting removed and its sas_target object is freed but its sdev object remains intact. Consequently, a kernel panic can occur while the driver is trying to access the sas_address field of sas_target object without also checking the sas_target object for NULL.

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  17. CVE-2021-47547

    Mittel · CVSS 4.4EPSS 0,23%Keine Korrektur veröffentlicht

    net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound

    In the Linux kernel, the following vulnerability has been resolved: net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound In line 5001, if all id in the array 'lp->phy[8]' is not 0, when the 'for' end, the 'k' is 8. At this time, the array 'lp->phy[8]' may be out of bound.

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  18. CVE-2021-47544

    Kritisch · CVSS 9.8EPSS 0,86%Keine Korrektur veröffentlicht

    tcp: fix page frag corruption on page fault

    In the Linux kernel, the following vulnerability has been resolved: tcp: fix page frag corruption on page fault Steffen reported a TCP stream corruption for HTTP requests served by the apache web-server using a cifs mount-point and memory mapping the relevant file. The root cause is quite similar to the one addressed by commit 20eb4f29b602 ("net: fix sk_page_frag() recursion from memory reclaim"). Here the nested access to the task page frag is caused by a page fault on the (mmapped) user-space memory buffer coming from the cifs file. The page fault handler performs an smb transaction on a different socket, inside the same process context

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  19. CVE-2021-47542

    Mittel · CVSS 5.6EPSS 0,25%Keine Korrektur veröffentlicht

    net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()

    In the Linux kernel, the following vulnerability has been resolved: net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings() In qlcnic_83xx_add_rings(), the indirect function of ahw->hw_ops->alloc_mbx_args will be called to allocate memory for cmd.req.arg, and there is a dereference of it in qlcnic_83xx_add_rings(), which could lead to a NULL pointer dereference on failure of the indirect function like qlcnic_83xx_alloc_mbx_args(). Fix this bug by adding a check of alloc_mbx_args(), this patch imitates the logic of mbx_cmd()'s failure handling. This bug was found by a static analyzer. The analysis employs differentia

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  20. CVE-2021-47521

    Hoch · CVSS 7.8EPSS 0,24%Keine Korrektur veröffentlicht

    can: sja1000: fix use after free in ems_pcmcia_add_card()

    In the Linux kernel, the following vulnerability has been resolved: can: sja1000: fix use after free in ems_pcmcia_add_card() If the last channel is not available then "dev" is freed. Fortunately, we can just use "pdev->irq" instead. Also we should check if at least one channel was set up.

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