CVE-2024-42136— cdrom: rearrange last_media_change check to avoid unintentional overflow
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I. Basic Information for CVE-2024-42136
Vulnerability Information
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Vulnerability Title
cdrom: rearrange last_media_change check to avoid unintentional overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cdrom: rearrange last_media_change check to avoid unintentional overflow When running syzkaller with the newly reintroduced signed integer wrap sanitizer we encounter this splat: [ 366.015950] UBSAN: signed-integer-overflow in ../drivers/cdrom/cdrom.c:2361:33 [ 366.021089] -9223372036854775808 - 346321 cannot be represented in type '__s64' (aka 'long long') [ 366.025894] program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO [ 366.027502] CPU: 5 PID: 28472 Comm: syz-executor.7 Not tainted 6.8.0-rc2-00035-gb3ef86b5a957 #1 [ 366.027512] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 366.027518] Call Trace: [ 366.027523] <TASK> [ 366.027533] dump_stack_lvl+0x93/0xd0 [ 366.027899] handle_overflow+0x171/0x1b0 [ 366.038787] ata1.00: invalid multi_count 32 ignored [ 366.043924] cdrom_ioctl+0x2c3f/0x2d10 [ 366.063932] ? __pm_runtime_resume+0xe6/0x130 [ 366.071923] sr_block_ioctl+0x15d/0x1d0 [ 366.074624] ? __pfx_sr_block_ioctl+0x10/0x10 [ 366.077642] blkdev_ioctl+0x419/0x500 [ 366.080231] ? __pfx_blkdev_ioctl+0x10/0x10 ... Historically, the signed integer overflow sanitizer did not work in the kernel due to its interaction with `-fwrapv` but this has since been changed [1] in the newest version of Clang. It was re-enabled in the kernel with Commit 557f8c582a9ba8ab ("ubsan: Reintroduce signed overflow sanitizer"). Let's rearrange the check to not perform any arithmetic, thus not tripping the sanitizer.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于cdrom模块中在检查上次媒体变更时，发生整数溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-42136
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Same Patch Batch · Linux · 2024-07-30 · 70 CVEs total
| CVE-2024-42146 | drm/xe: Add outer runtime_pm protection to xe_live_ktest@xe_dma_buf | |
| CVE-2024-42227 | drm/amd/display: Fix overlapping copy within dml_core_mode_programming | |
| CVE-2024-42225 | wifi: mt76: replace skb_put with skb_put_zero | |
| CVE-2024-42153 | i2c: pnx: Fix potential deadlock warning from del_timer_sync() call in isr | |
| CVE-2024-42152 | nvmet: fix a possible leak when destroy a ctrl during qp establishment | |
| CVE-2024-42151 | bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable | |
| CVE-2024-42150 | net: txgbe: remove separate irq request for MSI and INTx | |
| CVE-2024-42149 | fs: don't misleadingly warn during thaw operations | |
| CVE-2024-42148 | bnx2x: Fix multiple UBSAN array-index-out-of-bounds | |
| CVE-2024-42147 | crypto: hisilicon/debugfs - Fix debugfs uninit process issue | |
| CVE-2024-42154 | tcp_metrics: validate source addr length | |
| CVE-2024-42145 | IB/core: Implement a limit on UMAD receive List | |
| CVE-2024-42144 | thermal/drivers/mediatek/lvts_thermal: Check NULL ptr on lvts_data | |
| CVE-2024-42142 | net/mlx5: E-switch, Create ingress ACL when needed | |
| CVE-2024-42141 | Bluetooth: ISO: Check socket flag instead of hcon | |
| CVE-2024-42140 | riscv: kexec: Avoid deadlock in kexec crash path | |
| CVE-2024-42138 | mlxsw: core_linecards: Fix double memory deallocation in case of invalid INI file | |
| CVE-2024-42139 | ice: Fix improper extts handling | |
| CVE-2024-42137 | Bluetooth: qca: Fix BT enable failure again for QCA6390 after warm reboot | |
| CVE-2024-42135 | vhost_task: Handle SIGKILL by flushing work and exiting |
Showing top 20 of 70 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-42136
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