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CVE-2024-48881— bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again

EPSS 0.01% · P1
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I. Basic Information for CVE-2024-48881

Vulnerability Information
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Vulnerability Title
bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
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BCache模块在cache_set_flush中，未正确检查c->root是否为NULL，可能导致空指针取消引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0729029e647234fa1a94376b6edffec5c2cd75f6 ~ 4379c5828492a4c2a651c8f826a01453bd2b80b0 -
LinuxLinux 6.5 -

II. Public POCs for CVE-2024-48881

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III. Intelligence Information for CVE-2024-48881

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Same Patch Batch · Linux · 2025-01-11 · 67 CVEs total

CVE-2024-57793virt: tdx-guest: Just leak decrypted memory on unrecoverable errors
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CVE-2024-57877arm64: ptrace: fix partial SETREGSET for NT_ARM_POE
CVE-2024-57876drm/dp_mst: Fix resetting msg rx state after topology removal
CVE-2024-57806btrfs: fix transaction atomicity bug when enabling simple quotas
CVE-2024-57805ASoC: SOF: Intel: hda-dai: Do not release the link DMA on STOP
CVE-2024-57804scsi: mpi3mr: Fix corrupt config pages PHY state is switched in sysfs
CVE-2024-57800ALSA: memalloc: prefer dma_mapping_error() over explicit address checking
CVE-2024-57799phy: rockchip: samsung-hdptx: Set drvdata before enabling runtime PM
CVE-2024-57798drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()
CVE-2024-57807scsi: megaraid_sas: Fix for a potential deadlock
CVE-2024-57792power: supply: gpio-charger: Fix set charge current limits
CVE-2024-57791net/smc: check return value of sock_recvmsg when draining clc data
CVE-2024-56788net: ethernet: oa_tc6: fix tx skb race condition between reference pointers
CVE-2024-56372net: tun: fix tun_napi_alloc_frags()
CVE-2024-56369drm/modes: Avoid divide by zero harder in drm_mode_vrefresh()
CVE-2024-56368ring-buffer: Fix overflow in __rb_map_vma
CVE-2024-55916Drivers: hv: util: Avoid accessing a ringbuffer not initialized yet
CVE-2024-55881KVM: x86: Play nice with protected guests in complete_hypercall_exit()
CVE-2024-54193accel/ivpu: Fix WARN in ivpu_ipc_send_receive_internal()

Showing top 20 of 67 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-48881

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