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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-38458

atm: clip: Fix NULL pointer dereference in vcc_sendmsg()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix NULL pointer dereference in vcc_sendmsg() atmarpd_dev_ops does not implement the send method, which may cause crash as bellow. BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 0 P4D 0 Oops: Oops: 0010 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.15.0-rc6-syzkaller-00346-g5723cc3450bc #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000d3cf778 EFLAGS: 00010246 RAX: 1ffffffff1910dd1 RBX: 00000000000000c0 RCX: dffffc0000000000 RDX: ffffc9000dc82000 RSI: ffff88803e4c4640 RDI: ffff888052cd0000 RBP: ffffc9000d3cf8d0 R08: ffff888052c9143f R09: 1ffff1100a592287 R10: dffffc0000000000 R11: 0000000000000000 R12: 1ffff92001a79f00 R13: ffff888052cd0000 R14: ffff88803e4c4640 R15: ffffffff8c886e88 FS: 00007fbc762566c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000041f1b000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vcc_sendmsg+0xa10/0xc50 net/atm/common.c:644 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x219/0x270 net/socket.c:727 ____sys_sendmsg+0x52d/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmmsg+0x227/0x430 net/socket.c:2709 __do_sys_sendmmsg net/socket.c:2736 [inline] __se_sys_sendmmsg net/socket.c:2733 [inline] __x64_sys_sendmmsg+0xa0/0xc0 net/socket.c:2733 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 9ec7e943aee5c28c173933f9defd40892fb3be3daffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < a16fbe6087e91c8e7c4aa50e1af7ad56edbd9e3eaffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7f1cad84ac1a6af42d9d57e879de47ce37995024affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 27b5bb7ea1a8fa7b8c4cfde4d2bf8650cca2e8e8affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 07b585ae3699c0a5026f86ac846f144e34875eeeaffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 34a09d6240a25185ef6fc5a19dbb3cdbb6a78bc0affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 7f8a9b396037daae453a108faec5b28886361323affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 22fc46cea91df3dce140a7dc6847c6fcf0354505affected

Linux Linux

Default version status: affected

  • 2.6.12affected
  • 0 to < 2.6.12unaffected
  • 5.4.296 to ≤ 5.4.*unaffected
  • 5.10.240 to ≤ 5.10.*unaffected
  • 5.15.189 to ≤ 5.15.*unaffected
  • 6.1.146 to ≤ 6.1.*unaffected
  • 6.6.99 to ≤ 6.6.*unaffected
  • 6.12.39 to ≤ 6.12.*unaffected
  • 6.15.7 to ≤ 6.15.*unaffected
  • 6.16 to ≤ *unaffected

References