net/bnx2x: Prevent access to a freed page in page_pool
In the Linux kernel, the following vulnerability has been resolved: net/bnx2x: Prevent access to a freed page in page_pool Fix race condition leading to system crash during EEH error handling During EEH error recovery, the bnx2x driver's transmit timeout logic could cause a race condition when handling reset tasks. The bnx2x_tx_timeout() schedules reset tasks via bnx2x_sp_rtnl_task(), which ultimately leads to bnx2x_nic_unload(). In bnx2x_nic_unload() SGEs are freed using bnx2x_free_rx_sge_range(). However, this could overlap with the EEH driver's attempt to reset the device using bnx2x_io_slot_reset(), which also tries to free SGEs. This race condition can result in system crashes due to accessing freed memory locations in bnx2x_free_rx_sge() 799 static inline void bnx2x_free_rx_sge(struct bnx2x *bp, 800 struct bnx2x_fastpath *fp, u16 index) 801 { 802 struct sw_rx_page *sw_buf = &fp->rx_page_ring[index]; 803 struct page *page = sw_buf->page; .... where sw_buf was set to NULL after the call to dma_unmap_page() by the preceding thread. EEH: Beginning: 'slot_reset' PCI 0011:01:00.0#10000: EEH: Invoking bnx2x->slot_reset() bnx2x: [bnx2x_io_slot_reset:14228(eth1)]IO slot reset initializing... bnx2x 0011:01:00.0: enabling device (0140 -> 0142) bnx2x: [bnx2x_io_slot_reset:14244(eth1)]IO slot reset --> driver unload Kernel attempted to read user page (0) - exploit attempt? (uid: 0) BUG: Kernel NULL pointer dereference on read at 0x00000000 Faulting instruction address: 0xc0080000025
CVE-2024-26859
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-26859
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "7bcc090c81116c66936a7415f2c6b1483a4bcfd9",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "4f37d3a7e004bbf560c21441ca9c022168017ec4",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "8eebff95ce9558be66a36aa7cfb43223f3ab4699",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "8ffcd3ccdbda0c918c4a0f922ef1c17010f1b598",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "cf7d8cba639ae792a42c2a137b495eac262ac36c",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "3a9f78b297e08ca8e88ae3ecff1f6fe2766dc5eb",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "c51f8b6930db3f259b8820b589f2459d2df3fc68",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "44f9f1abb0ecc43023225ab9539167facbabf0ec",
"versionType": "git"
},
{
"status": "affected",
"version": "4cace675d687ebd2d813e90af80ff87ee85202f9",
"lessThan": "d27e2da94a42655861ca4baea30c8cd65546f25d",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.311",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.273",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.214",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.153",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.83",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.23",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.11",
"versionType": "semver",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8.2",
"versionType": "semver",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-26859
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26434 · Revision 1
- Added to Heist Feed
- Publisher date